Waves of calcium that enter cells are propagated through the cytoplasmic compartment, as happens within the first minute or so after fertilization, generally transient because Ca2+ ions are quickly pushed from the cytosol straight into the ER and/or extracellular space.
Define cytosol?
The cytosol is referred to as the cytoplasm's matrix. In eukaryotes, it encircles the cell organelles. Prokaryotes carry out all metabolic processes.
The nucleus, endoplasmic reticulum, and mitochondria are among the organelles that are housed in the cytoplasm of eukaryotic cells. The portion of the cytoplasm that is not contained in a organelle is known as the cytosol. Despite the cytoplasm's apparent lack of structure.
Therefore, waves of calcium that enter cells are propagated through the cytoplasmic compartment, as happens within the first minute or so after fertilization, generally transient because Ca2+ ions are quickly pushed from the cytosol straight into the ER and/or extracellular space.
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occasionally a carbohydrate (phenol red) broth will show a pink color. what is the ph in the tube and what is produced causes this ph change?
Occasionally a carbohydrate (phenol red) broth will show a pink color. The pH in the tube and the causes of this pH change will be alkaline, ammonia.
Sugar molecules make up carbohydrates, or carbs. Carbohydrates are one of the three primary nutrients included in foods and beverages, along with proteins and fats. Glucose is created by your body's breakdown of carbs. The primary source of energy for the cells, tissues, and organs in your body is glucose, sometimes known as blood sugar.
At every stage of life, carbohydrates, commonly referred to as carbs, are essential. They are the main energy source for the body and the preferred energy source for the brain. The body converts carbohydrates into glucose, a form of sugar. Your body's cells, tissues, and organs use glucose as fuel.
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The complete question is ''Occasionally a carbohydrate (phenol red) broth will show a pink color. What is the pH in the tube and what is produced causes this pH change?
a) alkaline, amino acids
b) alkaline, ammonia
c) neutral, alcohols
d) acidic, ammonia
college students, male and female, are solicited for sperm and egg donations through ads in newspapers and online. have you seen any ads for donors? do you know anyone who has been a sperm or egg donor? what was his/her experience?
For charitable or financial reasons, many college students enroll. the early 20s, sperm donation and egg donation for females allow them to assist infertile couples in having children and they frequently receive significant compensation for their efforts.
Why would someone donate their gametes?
When one or both partners are unable to provide their own sperm, eggs, or embryos, it is still possible to conceive a child through gamete or embryo donation.
Many contributors also give for less self-centered reasons, even though they may not appear like easy money to cash-strapped college students.
Therefore, It provides childless couples with the opportunity to begin a family.
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If you want to affect chromatin packaging, which amino acid could you mutate to affect both histone acetylation and methylation patterns?.
Isyine is an amino acid that can be altered to change the patterns of histone acetylation and methylation.
On Amino, what can you do?You can ch-at with folks who share your interests using Amino. Whatever interests you, you can find news or other information about it. You may read blogs, view videos, and do a lot more on-line.
Is Amino safe to use?Amino is no safer or less risky compared to any other social media net-work in terms of security. If you do decide to allow your child to create a profile, make sure they have all the resources they require before letting them go.
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how did the evolution of the jaw contribute to diversification of early vertebrate lineages? group of answer choices it made additional food sources available. it allowed for smaller body size. it was the first stage in development of a bony skull. it increased the surface area for respiration and feeding.
The evolution of the jaw contribute to diversification of early vertebrate lineages as the group of answer choices it made additional food sources available. Thus, option A is correct.
What is evolution?
Evolution has the shift in the biological population's heritable traits over successive generations. These traits are the result of genes that are expressed during reproduction and transferred from parent to offspring.
The process of mutation, genetic recombination, and other causes of genetic diversity frequently result in the different traits existing within a population.
When these variations are subjected to evolutionary processes like natural selection (which includes sexual selection) and genetic drift, specific traits within a population start to become more or less prevalent. This is when evolution happens.
Therefore, The evolution of the jaw contribute to diversification of early vertebrate lineages as the group of answer choices it made additional food sources available. Thus, option A is correct.
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type i alveolar cells allow rapid diffusion of gases through their thin membranes. secrete a chemical known as surfactant. are phagocytic. allow rapid diffusion of gases through their thin membranes, secrete a chemical known as surfactant, and are phagocytic. none of the statements are true.
Type I alveolar cells allow rapid diffusion of gases through their thin membranes.
Type I alveolar cells covers 95% of alveolar surface and plays an important role in air–blood barrier function of lungs. They also develop plasticity in the process of alveolar regeneration .
These cells lines up the alveolar surface and maintain the leakage of fluid and protein across the air space , that helps to allow the gases to freely exchange across the air- blood barrier . They are also considered as terminally differentiated cells, whose life span is 120 days approx.
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which of the following please help me
Answer:
the highest structural level in the elephant body is the foot
FILL IN THE BLANK. a ribozyme is ___ . an rna with catalytic activity an enzyme that synthesizes rna primers during dna replication an enzyme that synthesizes rna as part of the transcription process a catalyst that uses rna as a substrate an enzyme that catalyzes the association between the large and small ribosomal subunits
Catalytically active RNA molecules or RNA-protein complexes, in which just the RNA supplies the catalytic activity, are referred to as Ribozymes.
Does the RNA polymerase enzyme catalyze the synthesis of RNA from a DNA template?During the DNA transcription process, which converts a DNA template into RNA, RNA polymerase enzymes produce an RNA copy of a DNA sequence. RNA polymerases are multi-chained polypeptides with a molecular weight of 500,000. RNA polymerases come in three different varieties in eukaryotic cells.
Which enzyme is primarily in charge of the primary steps involved in creating a new DNA strand?The enzyme DNA polymerase is one of the essential components in DNA replication. DNA is created by DNA polymerases, which incorporate nucleotides.
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The highlighted structure is called ___ and it is proportionally _in human compared to the similar structure in the sheep brain.
The lens, which is the emphasized structure, is comparatively smaller in human brains than it is in the brains of sheep.
What is controlled by the brain?The brain regulates many bodily functions, including the function of numerous organs as well as thinking, memory, language, arm and leg motions. By controlling heart and breathing rates, it also affects how people react to stressful situations (such as completing an exam, losing a job, having a baby, being ill, etc.).
Which is more crucial, the heart or the brain?Without a doubt, the brain is the most important component of the human body. The brain is the home of the mind, emotions, personality, and consciousness. It oversees and coordinates all of its skin's other processes, including the heart. Alzheimer's disease and other signs of brain damage
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4. A 50-year-old male who is not overweight and has normal blood cholesterol levels suffers a heart attack. Propose a possible explanation.
describe the type of digestive system that platyhelminthes have. explain why it has so many small projections that extend into all parts of the body.
The digestive system of Platyhelminthes is branched and incomplete, with the mouth serving also as an excretory pore.
Cestodes like the tapeworms have tiny projections throughout the body surface known as microvilli which increase the surface area and promote the absorption of nutrients from the host.
Phylum Platyhelminthes includes the flatworms which are acoelomate, i.e. do not have a coelom or body cavity. Most flatworms are parasitic in nature and derive their nutrition from a host. These types of worms (cestodes) possess tiny projections called microvilli that are present all over the body surface since they lack a digestive system.
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Phantom limb sensations best illustrate that pain can be experienced in the absence of.
Most scientists can agree on the state of earth's environment when life first appeared. What was the state of the environment when life first appeared on earth?.
The Hadean Bioscience colleagues refer to the early Earth as a "bare planet," meaning that it didn't have an atmosphere or an ocean when it originally formed.
What means of environment?Environment can be defined as a sum total of all the living and non-living elements and their effects that influence human life. While all living or biotic elements are animals, plants, forests, fisheries, and birds, non-living or abiotic elements include water, land, sunlight, rocks, and air.Environment mainly consists of atmosphere, hydrosphere, lithosphere and biosphere. However, it can be loosely categorised into two sorts, namely (a) Micro environments and (b) Macro environments. It can also be split into two more categories, such as (c) the physical environment and (d) the biotic environment.
What is importance of environment?Healthy living as well as the continuation for life on Earth both depend on the environment. Earth is home to many different living beings, and all of us rely on it for necessities like food, air, & water. Therefore, it is imperative that each individual protect and preserve our ecosystem. Geographical setting & artificial environment are the two categories of environments.
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Which property of connective tissue is fundamental to
its function of binding tissues and organs?
O cells that contain actin and myosin
O mostly made of protein fibers
O regenerative properties
O tightly packed cells
Connective tissue is composed of proteins, this characteristic is essential to its ability to serve as a link between tissues and organs.
What is connective tissue?Tissue that supports, protects and gives structure to other human tissues and organs. It also helps to transport nutrients and other substances between tissues and organs, connective tissue also helps to store fat and mend damaged tissue. Connective tissue is made up of cells, fibers, and a gel-like substance. Examples of various types of connective tissue include bone, cartilage, fat, blood, and lymphatic tissue.
Mainly connective tissue is classified into loose connective tissue and thick connective tissue.
Whether the connective tissue is lax or dense depends on the ratio of fibrous tissue within it.
The fibrous protein found in connective tissue, which holds the organs and tissues together, is responsible for this trait of binding.
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dimples are a dominant trait. a woman (homozygous for dimples) and a man without dimples are expecting a baby. what is the chance that their child has dimples?
Answer: all (%100) will have dimples
Explanation:DD X dd = Dd
which is not a function of the lymphatic system? question 5 options: 1) transports dietary lipids 2) returns excess interstitial fluid to the bloodstream 3) houses and develops lymphocytes 4) generates immune responses 5) no exceptions; all choices are functions of the lymphatic system.
The correct answer for the given question is: (5) No exceptions, i.e. all of the options show the functions of the lymphatic system.
The lymphatic system has several functions in the body. It is responsible for regulating the fluid levels in the body. It does so by removing extra interstitial fluid from the respective tissues and redirecting it into the bloodstream. The lymphatic system also takes up dietary fats or lipids and is also responsible for the transport of these lipids.
The lymphatic system also acts as a site for the storage as well as the development of lymphocytes. It is also associated with the generation of immune reactions.
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please help!! its needed to be ordered from youngest to oldest
Paleoproterozoic ; Granitic Gneiss
Paleoproterozoic ; Hornblende, Diopside - hornblende
Paleoproterozoic ; Hornblende schist,
Paleoproterozoic ; Magnetite ore
Paleoproterozoic ; late Jurassic syenite
Paleoproterozoic marble and calciphyre
Paleoproterozoic diopside, diopside - phlogophite and diapside - Hornblende .
What is Paleoproterozoic ?The earliest of the Proterozoic Eon's three subdivisions, the Paleoproterozoic Era, lasted from 2,500 to 1,600 million years ago. The Paleoproterozoic is the longest geological period in Earth's history. The first time the continents stabilized was during this time period.
The Proterozoic Eon, which lasted from 2.5 billion to 1.6 billion years ago, has three subdivisions, the first of which is the Paleoproterozoic (Ga). The earliest stability of the continents occurred at this time, and cyanobacteria
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which of the following is not one of the main methods for reconstructing ancient environments? group of answer choices 40k/40ar analysis of lava flows and of ash layers stable carbon isotope analysis of fossils and of soils oxygen isotope analysis of marine microorganisms faunal analysis of habitat-specific species
40K/40Ar analysis of lava flows and of ash layers of the main method for reconstructing ancient environment.
What are at least three methods used to reconstruct ancient environments?
The three types of biological proxy data that are commonly used to reconstruct past environments are indicator taxa, assemblage analysis, and biophysical responses.
Hence, 40K/40Ar analysis of lava flows and of ash layers.
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If a mother has some mutations in her mitochondrial dna, who will inherit the mutations?.
Answer: Daughter
Explanation:
The normal 46 chromosomes in our body are contained in the center of the cell, which is called the nucleus. Mitochondria are structures in the cell located outside of the nucleus in the cytoplasm, that also contain genes that are separate from the ones in the nucleus.
Unlike nuclear genes, which are inherited from both parents, mitochondrial genes are inherited only from the mother. If there is a mutation in a mitochondrial gene, it is passed from a mother to all of her children; sons will not pass it on, but daughters will pass it on to all of their children, and so on.
In the parental Mitochondria during sexual reproduction found in the sperm are decomposed thus preventing the parental leakage.
Mitochondria in sperm is usually destroyed by the egg.
If a mother has some mutations in her mitochondrial DNA, her offspring will also inherit the mutations.
What is mitochondrial DNA?Mitochondrial DNA (mtDNA) is present in the mitochondria and is inherited only from the mother cells. Therefore, mutations present the in the mtDNA of a mother cell will also inherit by her offspring.
Nuclear DNA is passed down from both the parents to their offspring, while mtDNA is passed only from the mother because the egg cell of the mother is responsible for contributing majority of the cytoplasm to the embryo, which also includes the mitochondria.
However, mtDNA mutations may or may not have any impact on the health of the mother or offspring and can cause diseases or other symptoms in some cases. Some mutations cause only mild effects, while other mutations may lead to severe health problems.
Therefore, the mitochondrial mutations in the mother will be passed down to their offspring.
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describe the structure of a generalized eukaryotic plant cell. indicate the ways in which a nonphotosynthetic prokaryotic cell would differ in structure from this generalized eukaryotic plant cell.
A generalized eukaryotic plant cell plays simple capabilities required to attend to plants. it is a large number of organelles which are structurally supported with the aid of using the cell membrane, that's out of doors of the mobileular wall.
In the mobileular membrane, organelles like chloroplasts assist to facilitate photosynthesis. A mobileular that is non-photosynthetic, like a prokaryotic bacterium, would not require chloroplasts to function. The prokaryote is normally simpler, requiring minimum organelles to survive. that is frequently because, as stated before, it needs much less energy.
It possesses DNA for the intention of containing genetic material, ribosomes to make proteins, a mobileular membrane and mobileular wall to protect the mobileular from its surroundings. While prokaryotes have other components, the ones indexed above are that which can also additionally also be observed in plant cells. apart from that, the nonphotosynthetic prokaryotic mobileular needs tons much less energy, making it tons smaller and some distance much less difficult than the generalized eukaryotic mobileular.
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1. Which particle in the nucleus of an atom has a neutral charge?
a. neutron
b. carbon
c. proton
d. electron
Neutron is the answer (a)
Color is not a good indicator to identify a
mineral because
a) Different minerals can be the same color
b) All of the above
c) Color can change due to exposure to air or
water
d) Some minerals can come in many colors
what role do fungi fulfil in the global carbon cycle? group of answer choices fungi are fixing carbon via photosynthesis. fungi are releasing fixed carbon back into the environment to be reutilized by autotrophs. fungi reduce atmospheric carbon dioxide via respiration. fungi provide fixed carbon to plant roots.
How are the light-dependent reactions of photosynthesis related to the light-independent reactions of photosynthesis?
Responses
The light-dependent reactions break down molecules necessary for the light-independent reactions.
The light-dependent reactions break down molecules necessary for the light-independent reactions.
The light-dependent reactions use molecules produced by the light-independent reactions.
The light-dependent reactions use molecules produced by the light-independent reactions.
The light-dependent reactions break down molecules produced by the light-independent reactions.
The light-dependent reactions break down molecules produced by the light-independent reactions.
The light-dependent reactions produce molecules used by the light-independent reactions.
why is it difficult to observe individual chromosomes with a light microscope during interphase? view available hint(s)for part a why is it difficult to observe individual chromosomes with a light microscope during interphase? the spindle must move them to the metaphase plate before they become visible sister chromatids do not pair up until division starts the dna has not been replicated yet interphase chromosomes are long, thin strands unlike the condensed chromosomes visible in mitosis they leave the nucleus and are dispersed to other parts of the cell
During the interphase, chromatin is in its lax state. DNA is uncoiled and the molecule looks like a single long and thin strand. Option D) Interphase chromosomes are long, thin strands unlike the condensed chromosomes visible in mitosis.
When do chromosomes become visible under the optic microscope?After the interphase and during the prophase, the cell suffers a few changes. The nuclear membrane breaks, organelles arrange near the cell periphery, centrosomes move to the opposite poles, and the mitotic spindle extends.
During this stage, chromosomes begin their condensation thanks to the action of hystones and other the proteins associated with them. While they are condensing, they become visible under the optic microscope.
Before the prophase, during the interphase, chromatin is uncoiled, and the DNA molecule is in its lax state.
The correct option is d) interphase chromosomes are long, thin strands unlike the condensed chromosomes visible in mitosis.
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Why is it difficult to observe individual chromosomes with a light microscope during interphase?
a) the spindle must move them to the metaphase plate before they become visible
b) sister chromatids do not pair up until division starts
c) the dna has not been replicated yet
d) interphase chromosomes are long, thin strands unlike the condensed chromosomes visible in mitosis
e) they leave the nucleus and are dispersed to other parts of the cell
After the amino acid chain leaves the ribosome, which organelle then folds, modifies, and transports the protein?.
After the amino acid chain leaves the ribosome, Endoplasmic Reticulum folds, modifies, and transports the protein.
The Golgi apparatus, also known as the Golgi complex, serves as a factory where proteins from the ER are further processed and sorted before being transported to their final destinations: lysosomes, the plasma membrane, or secretion. The endoplasmic reticulum (ER) is a large, dynamic structure in the cell that performs numerous functions such as calcium storage, protein synthesis, and lipid metabolism. The ER's various functions are carried out by distinct domains, which include tubules, sheets, and the nuclear envelope.
Endoplasmic reticulum is classified into two types: Rough Endoplasmic Reticulum: Their primary function in cells is to produce proteins, and ribosomes are attached to their surface. Smooth Endoplasmic Reticulum: Their primary function in the liver and kidney cells is to produce lipids and detoxify toxins in the body.
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in goldfish, the twin-tailed trait has two alleles. goldfish that have a heterozygous genotype produce the single-tailed phenotype. this means that goldfish with the twin-tailed phenotype must be
Answer:
Homozygous recessive
Explanation:
This is because if single-tailed is heterozygous the alleles would be Tt which would mean the single-tailed trait is dominant and twin-tailed is recessive.
T = Single t = twin
So, for a recessive trait to show there would have to be two of them with would make it tt which is homozygous recessive since both of them are recessive.
which of the following statements about ips cells is false? group of answer choices ips cells can be made by adding a combination of transcription regulators to a fibroblast. a cell that is dedifferentiated to become an ips cell will undergo changes to its gene expression profile. stimulation by extracellular signal molecules causes ips cells to differentiate. ips cells made from mouse cells can differentiate into almost any human cell type.
iPS cells made from mouse cells have the ability to develop into practically every form of human cell. This assertion is untrue. IPS cells are pluripotent, which means they have the potential to develop into any form of cell found in the body.
Adipocytes, cardiomyocytes, primitive hematopoietic cells, pancreatic beta-cells, and a number of distinct neuronal cell types have all been developed from human iPS cells. The development of iPSCs, which are made from skin or blood cells and reprogrammed to return to a pluripotent stage akin to that of an embryo, has made it possible to create an endless source of any type of human cell needed for therapeutic purposes.
As a result, we can conclude that the claim stated in option D—that iPS cells produced from mouse cells can develop into virtually every type of human cell—is untrue.
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Based on the experiment in the scenario, which visual aid would be most helpful in showing the change in the plants' heights over time?.
Answer:its b
Explanation:i think its b
Pleasee helppp 20 points
Cody found a mineral lying next to the bank. In an attempt to identify it he used a hardness test. He was able to determine that it had a hardness less than corundum but greater than feldspar.
Which of the following could the mineral be?
talc
calcite
quartz
diamond
Answer:
of course quartz, its less than corundum and more than feldspar
Explanation:
in what way are plants similar to algae? in what way are plants similar to algae? both have extensive root systems. both can do photosynthesis. both absorb nutrients from their environment through their entire body surface. both have stiff stems that support the organism against gravity.
Plants are similar to algae in the following manner:-
Both of them can perform photosynthesis.
Plants as well as algae produce their food through the process of photosynthesis. During this process, they take up Carbon dioxide gas as well as water and with the help of chlorophyll pigments along with the light absorbed from the Sun, they produce glucose and give out Oxygen gas.
Algae possess chloroplasts, just like all plants with the help of which they are able to perform the process of photosynthesis. However, algae do not contain plant-like structures such as leaves, roots as well as stems, etc.
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