Answer:
CM-cellulose
Explanation:
I took the test :33
In prokaryotic cells ATP synthase lies across the plasma membrane, while in eukaryotic cells it lies across the_____
In prokaryotic cells ATP synthase lies across the plasma membrane, while in eukaryotic cells it lies across the inner mitochondrial membrane.
The cellular membrane is crossed by ATP synthase, which creates an opening through which protons can pass from regions of high concentration to regions of low concentration, providing energy for the production of ATP. Cells can store energy in ATP for later use thanks to the electrochemical gradient produced by the electron transport chain.The plasma membrane is where ATP synthase is found in prokaryotic cells, whereas the inner mitochondrial membrane is where it is found in eukaryotic cells. The thylakoid membrane, which is found in the cytoplasm of cyanobacteria and the chloroplast of plants, respectively, is shared by all organisms that are capable of photosynthesis.
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Is it normal to have a bruise after getting blood drawn?
After had your blood drawn, some bruising is typical. When ever a blood vessel gets injured, blood leaks into the area under your skin, resulting in a bruise.
Is bruising after donating typical?On rare occasions, arm bruises may appear. Some individuals may find the bruise alarming since it may appear spectacular, especially if it develops outside of the donor location. Bruises often don't hurt and will go away over time. It's common that they spread out just before going away.
After my blood test, should I be concerned about bruising?Bruising following a venipuncture is commonplace and usually not a reason for alarm. However, if a someone does feel really uncomfortable, they should contact a doctor.
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three different genotypes of garter snakes (a, b, and c) were reared at different temperatures. four individuals were in each trial. the table presents their weights (in grams). based on these data, which genotype appears to show phenotypic plasticity?
Genotype A only (20,25,27,29) (27,28,32,35) (29,32,34,39) (33,36,38,39).The genetic configuration that determines the features that an organism inherits from its parent is known as a genotype.
An organism's genotype is made up of all of its genetic components. The term "genotype" can also be used to describe the alleles or genetic variations that a person carries in a certain gene or genetic region.
The ploidy, or number of copies of each chromosome, found in that species, determines how many alleles a person can have for a given gene. In diploid organisms like humans, there are two complete sets of chromosomes, which means that each person has two alleles for each gene. Homozygous refers to a genotype when both alleles are the same.
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you add c18o2 to your growth chamber where you are growing a c3 plant under illumination. in which compound do you expect to initially find the 18o?
The first stable organic molecule produced during photosynthesis, which is PGA in the case of C3 plants, is expected to contain the 18O initially, and this label will be passed on to other organic compounds produced from PGA through subsequent metabolic pathways.
When adding C18O2 to a growth chamber where a C3 plant is growing under illumination, the 18O is expected to initially be found in the carboxyl group of the first stable organic molecule produced during photosynthesis. In C3 plants, the initial CO2 fixation occurs in the chloroplasts of mesophyll cells, where CO2 is converted into a 3-carbon compound, phosphoglycerate (PGA), through a series of enzymatic reactions known as the Calvin cycle.
During the Calvin cycle, the initial reaction involves the carboxylation of ribulose bisphosphate (RuBP) by the enzyme rubisco, which results in the formation of two molecules of PGA. If C18O2 is added to the growth chamber, rubisco will use this molecule instead of the normal C16O2, resulting in the production of a molecule containing a heavy isotope of oxygen (18O) in the carboxyl group.
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assume 100,000 consecutive newborns were examined in a population for signs of an 100% penetrant autosomal dominant condition. of eight affected newborns, five were born to unaffected parents. what is the new mutation rate?
The new mutation rate for all newborn children will be 1000000, thus the correct answer is option (C). 1 x 10⁵.
Automatic triumph This happens even if the complementary gene from the other parent is healthy. A dominant gene that is abnormal exists. It is also possible for the disease to manifest in a child as a new sickness when neither parent inherited the defective gene. There is a 50% chance that a parent's offspring will inherit an autosomal dominant condition from them. Pregnancy serves as proof of this.
The number of sporadic instances with the condition must equal two times the number of people evaluated times the number of newly identified cases in order to directly determine the mutation rate.
Thus, the new mutation rate:
μ = 2 x individual child examined x new mutation cases
= 2 x 100000 x 5
= 1000000
Thus 1 x 10⁵ is the correct answer.
The complete question is:
Assume 100,000 consecutive newborns were examined in a population for signs of a 100% penetrant autosomal dominant condition. of eight affected newborns, five were born to unaffected parents. what is the new mutation rate?
A. 1 x 10⁶
B. 2 x 10⁶
C. 1 x 10⁵
D. 2 x 10⁵
E. 4 x 10⁵
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As you saw in the film, rock pocket mice evolved to have dark-colored fur in certain habitats. In three to five sentences, explain how this trait increased in frequency in the population. Include the following key terms: “fitness” (or “fit”), “survival” (or “survive”), “selection” (or “selective”), and “evolution” (or “evolve”).
Rock pocket mice evolved to have dark-colored fur in certain habitats.
How has this trait increased in frequency in the population?Certain traits are acquired in certain habitats due to natural selection, based on the fitness of an organism. When these species reproduce, their offspring contain these traits at a higher frequency. This is how a trait increases in frequency in a population during evolution. Natural selection is very important for survival.
In the case of rock pocket mice, dark colored fur trait is acquired by natural selection, and on the progression of generation, this trait is acquired by the mice.
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Following is a list of tissue layers of the digestive tract. Which answer has them in correct order from lumen to external surface?
1. muscularis externa
2. muscularis mucosae
3. serosa
4. lamina propria
5. submucosa
a. 4, 2, 5, 1, 3
b. 3, 4, 5, 2, 1
c. 2,5,4,1,3
d. 4,5,2,1,3
e. 4,2,1,5,3
a. 4,2,5,1,3. The innermost tunic of the wall is called the mucosa, sometimes known as the mucous membrane layer. The gastrointestinal tract's lumen is lined with it.
Four layers, or tunics, make up the digestive tract's wall:
Mucosa\sSubmucosamuscle masssaline layer or serosaThe mucosa is made up of epithelium, a layer of loose connective tissue underneath termed lamina propria, and a thin layer of smooth muscle known as the muscularis mucosa. The mucosa in some areas becomes more surface area-rich by developing folds. The mucosa's specific cells secrete hormones, enzymes that aid in digestion, and mucus. The mucosa allows the lumen to be reached by ducts from other glands. The epithelium is composed of stratified squamous tissue in the mouth and anus, where thickness is required for abrasion protection.
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imagine that in the future we find unambiguous evidence for microbial life on mars. how could we know that this life is of independent origin? in other words, what are some properties that could indicate that this life originated on mars and not someplace else in the solar system (like earth)? select all that apply.
There are several properties that could indicate that microbial life found on Mars is of independent origin and not from Earth. These include:
1. The genetic makeup of the Martian microbes is different from that of known Earth organisms. If the Martian microbes have a different DNA or RNA sequence, amino acid composition, or other genetic characteristics from Earth life, this would suggest independent origins.
2.The Martian microbes use a different set of biochemical pathways than known Earth organisms. If the Martian microbes use different enzymes, metabolic pathways, or other biochemical processes than Earth life, this would suggest independent origins.
3.The Martian microbes are adapted to the Martian environment in ways that are different from known Earth organisms. If the Martian microbes have specific adaptations to the Martian climate, geology, or other features that are not seen in Earth life, this would suggest independent origins.
4.The Martian microbes are found in locations that are physically isolated from Earth. If the Martian microbes are found in regions of Mars that are geographically or geologically isolated from Earth (such as deep subsurface environments), this would suggest independent origins.
5.The Martian microbes have a fossil record that predates the earliest evidence of life on Earth. If the Martian microbes have a fossil record that dates back further than any known fossils on Earth, this would suggest independent origins.
6.The Martian microbes are phylogenetically distinct from Earth organisms. If the Martian microbes form a distinct branch on the tree of life, with no close evolutionary relationship to Earth life, this would suggest independent origins.
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Which correctly lists the changes to eukaryotic pre-mrna to form mrna
Exons removed, poly T tail inserted, and C)cap added. This is how eukaryotic pre-mRNA is altered to create mRNA.
Pre-mRNA is created in the nucleus by transcription of a section of a linear chromosome's DNA. To become a mature mRNA, this transcript must go through treatment (splicing and addition of 5' cap and poly-A tail) when it is still within the nucleus. RNA polymerase II (Pol II) in eukaryotes transcribes mRNA precursors (pre-mRNAs) from the genome. Mature mRNAs are produced after significant cotranscriptional processing. Pre-mRNA maturation typically involves splicing, 5′-end capping, 3′-end cleavage, and polyadenylation. Pre-mRNA processing is made up of three main processes: 3′-end polyadenylation, splicing, and 5′-end capping. Which correctly lists the changes to eukaryotic pre-mRNA to form mRNA? A. cap added, introns excised, and poly T tail added, B. cap added, exons excised, and poly T tail added, C. cap added, introns excised, and poly A tail added, D. cap added, exons excised, and poly A tail added.
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What is thermoregulation body temperature?
Sugars created during photosynthesis are distributed through the plant
inside of which of the following types of tissue?
Sugars created during photosynthesis are distributed through the plant inside of the phloem tissue.
What is photosynthesis?Photosynthesis is the process by which plants, algae, and some bacteria convert light energy from the sun into chemical energy in the form of glucose and oxygen. During photosynthesis, carbon dioxide and water are transformed into glucose and oxygen, with the help of chlorophyll and other pigments found in specialized organelles called chloroplasts.
Phloem tissue is a specialized plant tissue that is responsible for transporting food and other important molecules, such as hormones and signaling molecules, throughout the plant. The phloem is composed of living cells, including sieve tube elements and companion cells, which work together to move nutrients from where they are produced (usually in leaves) to where they are needed (such as growing regions or storage tissues).
This process is known as translocation and is essential for plant growth and development.
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what can be inferred from observed similarities in the forelimbs of humans, dogs and bats?
From the similarities observed in the forelimbs of humans, dogs and bats, we can conclude that these organisms share a common ancestor.
What is common ancestry and how is it determined?An ancestor shared by two or more descendants is a common ancestor. Common ancestry of two biological siblings includes parents and grandparents. The common ancestors of coyotes and wolves include the first dogs and the first mammals. Common ancestry refers to the fact that different lineages share the same lineage.
Do all humans have a common ancestor?They point out that all humans living today inherited mitochondrial DNA from a common ancestor, the so-called mitochondrial Eve, but this represents only a tiny fraction of our total genetic material.
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in which phylogenetic tree are the chytrids and ascomycetes shown as being more distantly related than in the other phylogenetic trees?
Chytrids and ascomycetes are shown in the same phylogenetic tree to be more distantly linked compared to other phylogenetic trees, if that is the case.
How does a phylogenetic tree work and what does it mean?By charting the evolution of an organism from a common ancestor to numerous children, a phylogenetic tree illustrates the relationship between distinct organisms. The links between people in a population to the whole life history of the planet may all be represented by trees.
How is a phylogenetic tree read?Studying a family tree is similar to comprehending a phylogeny. The ancestral bloodline is symbolized by the tree's root, while its offspring are shown by the branches' points. You advance through time by going from root to the tips.
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the flowering locus c gene, or flc gene, is found in certain plants responsible for flowering. the flc gene is expressed in seedlings, which prevents the plant from flowering. once the temperature drops, the expression of the flc gene drops, and the plants produce flowers. the flc gene is regulated at the epigenetic level. what type of epigenetic modifications are present in seedlings after the temperature drops?
In new seedlings, FLC gene expression is maintained through repressive epigenetic modifications, such as DNA methylation and histone modification.
After cold exposure, these repressive modifications are removed from the FLC gene, allowing the gene to be expressed and the plant to flower. This reduction in repressive modifications is an example of epigenetic regulation, where the regulation of gene expression is controlled by changes in the chromatin structure, rather than changes to the DNA methylation itself. The exact type of modifications present in new seedlings and after cold exposure are dependent on the specific plant species being studied and may vary among species. However, DNA methylation and histone modification are common types of epigenetic modifications that have been implicated in the regulation of the FLC gene in various plant species.
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The complete Question is:
Flowering Locus C (FLC) is a gene that is responsible for flowering in certain plants.
FLC is expressed in new seedlings, which prevents flowering.
Upon exposure to cold temperatures, FLC expression decreases and the plant flowers.
FLC is regulated through epigenetic modifications.
What type of epigenetic modifications are present in new seedlings and after cold exposure?
Analyze riley’s karyotype. Pay attention to both chromosome number and chromosome structure
A karyotype is a person's entire set of chromosomes. A laboratory-produced picture of a person's chromosomes separated from an individual cell and placed in numerical order is also referred to as a chromosomal image.
A karyotype can be used to search for chromosomal number or structural problems. A karyotype test examines the chromosomes in your cells to determine: Check to see if you have all 46 chromosomes. Having too many or too few chromosomes can lead to major health, growth, and development issues, such as Down syndrome (extra chromosome 21) and Turner syndrome (missing X chromosome).
The technique compares chromosomal length, centromere positioning (areas where the two chromatids are connected), and the location and size of G-bands. You will submit your work electronically.
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Which of the following would be good examples of genotype-by-environment interactions? Select all that apply.a. two different strains of corn that differ in height due to genotypeb. a strain of corn whose yield varies with the amount of nutrients in the soilc. two different mutants of mice that share similar fat metabolism abilitiesd. a line of dairy cows that increases milk yield in relation to feed amounte. a line of chickens whose eggshells are extra thick regardless of feed typef. a strain of mutant mice that becomes obese regardless of feed amount
The good example of genotype- by environment interaction are strain of corn whose yield varies with the amount of nutrients in the soil and line of dairy cows that increases milk yield in relation to feed amount.
InteractionFair-skinned folks are more susceptible to skin cancer from sunlight exposure than people with darker complexion. This is an illustration of the relationship between genotype and environment.The term "genotype by environment (G E) interaction" describes the variance in how different genotypes react to various surroundings (Falconer and Mackay, 1996). Due to scaling or re-ranking effects, there are two basic types of G E interaction.The phrase "genotype environment (GxE) interaction effect") refers to both the modification of genetic risk factors by environmental risk and protective factors as well as the function of specific genetic risk factors in determining individual differences in vulnerability to environmental risk factors.For more information on genotype-environment kindly visit to
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what is the kingdom that contains single-celled organisms that live in extreme environments?
The kingdom that contains single-celled organisms that live in extreme environments is archaea.
A single cell makes up a unicellular creature, also known as a single-celled organism, as opposed to a multicellular organism, which is made up of many cells. Similar to Eukarya, Archaea have RNA polymerases that are more complex than those of bacteria.
Comparatively speaking to bacteria, archaea do not have peptidoglycan in their cell walls. Compared to bacteria and eukarya, archaea's membrane lipid bonding is different.
Existing genetic variations. Archaea also possess RNA polymerases that are more complex than those found in bacteria, similar to Eucarya. Comparatively speaking to bacteria, archaea do not have peptidoglycan in their cell walls. Compared to bacteria and eukarya, archaea's membrane lipid bonding is different. Existing genetic variations.
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Which part of the cell contains genetic information.A) Plasma membraneB) NucleusC) ChloroplastD) Mitochondria
Answer: B.) The nucleus
Explanation:
Answer:
B) Nucleus contains genetic information.
Explanation:
The nucleus of a cell is the organelle that contains the genetic information of a cell in the form of DNA (deoxyribonucleic acid). DNA is responsible for transmitting genetic information from one generation of cells to the next and for controlling the function of cells. The nucleus is surrounded by a double membrane called the nuclear envelope, which helps to protect and regulate the genetic material inside. The nucleus also contains other important structures such as chromatin and the nucleolus, which are involved in the regulation of gene expression and the synthesis of ribosomes, respectively.
ALLEN
What does this symbol represent in terms of life cycles, and why is it drawn this way?a. Sporophyte: It is a simple way of drawing the many spores within the sporophyteb. Multicellular organism: It is a simple way of drawing many cells to represent a multicellular life stage.c. Spore: It is drawn this way to distinguish it from gametes, which are also single-celled. d. Cell with cytoskeleton: It is drawn to show microtubules.e.Nucleus with chromosomes: It is drawn to show two sets of chromosomes, making it diploid.
Option a is Correct. Sporophyte: This is a straightforward illustration of the numerous spores found within the sporophyte; what does it symbolize in terms of life cycles, and why is it depicted in this manner?
What stage of life does a sporophyte reach?A diploid (containing two sets of chromosomes) plant body develops and finally generates spores through meiosis during the sporophyte phase. Gametophytes, which are haploid (containing a single pair of chromosomes) gamete-producing organisms, are created when these spores divide through mitosis.
The multicellular haploid gametophyte, which is named after the Greek word phyton, or "plant," develops gametes. A multicellular, diploid sporophyte formed after fertilization goes on to create haploid spores through meiosis. A haplodiplontic life cycle is the name given to this kind of life cycle.
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Conclusion of diversity in living organisms in 200 words
The nature of the world is diverse. Different kinds of things exist, which leads to variety. The occurrence of different kinds of plants and animals on the surface of the world is referred to as biodiversity.
Genetics, species, and the ecology or habitat all contribute to variety. Because it ensures the existence and sustainability of all life on earth, biodiversity is a crucial component of the globe. Different forms of biodiversity exist as a result of the diversity of living organisms, based on a few key factors. The genetic elements that all living things share are what give rise to genetic variety.
Similar-gene species diverge and develop differently, resulting in biodiversity. When an environment has a variety of various types of living creatures, species diversity occurs. The interaction of living creatures that share common energy sources in an environment, which adds to biodiversity, creates ecological variety. The importance of biodiversity in nature is influenced by both the presence of living organisms in an environment and the health of the ecosystem. Living things can obtain food and other necessary resources to continue their existence through biodiversity. Because of biodiversity, climatic and environmental changes are controlled. Because biodiversity entails the coexistence of several animals and human groups in one area, it enriches culture.
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What organelle controls what goes in and out of the cell?
due to their shape, muscle cells are also called muscle ___
Muscle fibers are another name for muscle cells because of their form.
What are called cells?There are countless billions of cells in the human body. They not only take in nutrients from food and turn them into energy, but they also provide the body structure and carry out certain functions. A cell is made up of cytoplasm and is surrounded on all sides by a cell membrane. All living things are made up of cells, which are the smallest structural units of living matter and are typically microscopic in size. The majority of cells have one or more nuclei as well as other organelles that perform a range of functions.
What is the importance of cell?All living things—from bacteria to people—rely on cells for their structure and activity. They are regarded by scientists as the tiniest form of life. Cells contain the biological machinery which produces the proteins, chemicals, or signals necessary for all body functions. The presence or cells is one of the characteristics we use to assess whether an item is alive or not. Therefore, all the things we consider to be "living things," from the smallest to the largest animals and plants, are made of cells.
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To which substance does ferredoxin transfer an electron? a. photosystem i b. photosystem iic. nadp d. nadph
Ferredoxin transfer an electron to nadp. Through Fe-S clusters whose iron cations swing between +2 (ferrous) oxidation states and +3, the iron-sulfur protein ferredoxin facilitates electron transport in a vast variety of redox processes in cellular metabolism (ferric).
From the anaerobic bacterium Clostridium pasteurianum, the first protein of this kind was identified in 1962. The cyclic and noncyclic photophosphorylation processes of photosynthesis are mediated by a ferredoxin peculiar to chloroplasts. Ferredoxin-NADP + reductase (EC 1.18.1.2) lowers NADP + with FAD and a flavin group as cofactors, and ferredoxin serves as the final electron acceptor in non-cyclic photophosphorylation:
[tex][Fe(2+)Fe(3+)S_{2} (-2)] + NADP(+) + H^{+} ==== > 2 ferredoxin [Fe_{3} (+2)S_{2}(-2)] + NADPH[/tex]
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differential gene expression is the result of different cells having different . select one: a. regulatory sequences b. genes c. regulatory proteins
Differential gene expression is the result of different cells having different regulatory sequences. Option A is correct.
Differential gene expression refers to the phenomenon where different cells within an organism express different genes, leading to the development of specialized cells and tissues. This differential expression is the result of different cells having different regulatory sequences, which are non-coding DNA sequences that control the expression of genes.
Regulatory sequences include enhancers, silencers, and promoters, among others. These sequences interact with regulatory proteins to control the expression of genes in a cell-specific manner. By binding to specific DNA sequences, regulatory proteins can activate or repress the transcription of genes, leading to differences in gene expression between cells.
Therefore, it is the presence or absence of specific regulatory sequences that ultimately determines which genes are expressed in a given cell, leading to differential gene expression between cells.
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What happens to the chromosomes in late telophase
Answer:
During late telophase, the chromosomes de-condense as the histones assume a relaxed state. When they are in this state the cell can access the chromosomal DNA in order to produce proteins. DNA in the de-condensed state is very difficult to be seen, even with a microscope.
which cytoskeletal elements resist stresses placed on a cell and participate in junctions that attach some cells to their neighbors?
Intermediate filaments are cytoskeletal elements that tend to resist stresses placed on a cell and participate in junctions that attach some cells to their neighbours.
What are cytoskeletal elements?Cytoskeletal elements are a network of protein filaments and tubules that provide structural support, shape, and organization to cells. They are essential components of the cytoplasm, and their dynamic interactions play a crucial role in many cellular processes. The three main types of cytoskeletal elements are microfilaments, intermediate filaments, and microtubules. Microfilaments are the thinnest of the cytoskeletal elements, composed of the protein actin, and involved in cell shape, movement, and division. Intermediate filaments are the most stable of the cytoskeletal elements, composed of various proteins, and provide mechanical strength to cells. Microtubules are the largest of the cytoskeletal elements, composed of the protein tubulin, and play a role in cell shape, intracellular transport, and cell division.
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why are natural killer cells considered to be part of the innate immune response?
Natural Killer cells, however, are typically regarded as being part of the innate immune defense since they lack antigen-specific cell surface receptors.
In a phylogenetically old defense mechanism known for its potent cytolytic action against physiologically challenged cells including tumor cells and virus-infected cells, natural killer (NK) cells stand out. Their use in the treatment of hematological cancers may be superior to the well-known T lymphocyte-based immunotherapy in a number of ways.
An antigen-specific
An antigen is considered to have antigenic specificity when the host cells recognize it as a unique molecular entity and can accurately distinguish it from other antigens. The side-chain conformations of the antigen have a significant impact on antigen specificity.
Are antigens particular or general?
Certain immune responses are brought on by antigens. On the surfaces of infections, pathogen-specific antigens are generally present. The immune system responds to an antigen by either producing antibodies, which are specialized proteins, or cells that target the disease specifically.
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lace in order the steps involved for flavors on the tongue to create a perception in the brain.
1) Chemical substances in food disolve in saliva
2) Taste receptors are stimulated
3) Signals are sent to the thalamus
4) The frontal lobe perceives taste
lace in order the steps involved for flavors on the tongue to create a perception in the brain 1) Chemical substances in food disolve in saliva
What stages are involved in fragrances entering the nose and creating a perception in the brain?
Tiny molecules are emitted by odorous substances. When you breathe in, these molecules enter your nose. These compounds are detected by specific cells called olfactory receptors. The receptors send this information to your brain via your olfactory nerve, allowing you to smell.
Food chemical compounds dissolve in saliva. Taste receptors are triggered. The facial nerve sends signals to the thalamus. Taste perception is processed by the gustatory cortex.
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the granulosa cells of developing follicles secrete is called ___
A follicular cell, often referred to as a granulosa cell, is a somatic cell of the sex cord that is closely associated to the female gamete, also known as an oocyte or egg, that is developing in the mammalian ovary.
What granulosa cells are related to follicles secrete?The corpus luteum is formed from the cells in the ovarian follicle that are left behind after ovulation. They now create large amounts of progesterone in addition to estrogen to get the uterine lining ready for implantation.
The ovulatory follicle's granulosa cells, which produce estrogen in response to FSH, are the primary and essentially sole source of estradiol in the follicular phase of the ovarian cycle.
Therefore, The thecal cells secrete androgen and the granulosa cells secrete estradiol.
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What is the name for a burst of activity on an EEG in the early stages of sleep?
A. gamma waves
B. sleep spindles
C. REM
D. lingering activation
Sleep spindles is the name for a burst of activity on an EEG in the early stages of sleep.
Such a system includes sleep spindles. The EEG shows bursts of coherent brain activity known as sleep spindles, which are particularly noticeable during stage 2 sleep. They are made up of quick 11–16 Hz waves that last 0.5–1.5 seconds. In animals, the onset of cortical sleep spindles typically happens with high-frequency (about 200 Hz) ripples that travel on sharp hippocampus waves during NREM sleep (Siapas and Wilson, 1998). As memories are solidified during sleep, the co-occurrence of hippocampal sharp waves and cortical spindles may be the mechanism behind the integration of information between the hippocampus and neocortex (Buzsáki, 1996).
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