Molecules composed of a small oligosaccharide covalently linked to a phospholipid are called: Glycolipids
Glycolipids are lipids containing a glycosidic (covalent) link connecting them to a carbohydrate. Their job is to keep the cell membrane stable and make it easier for cells to recognize one another, which is essential for the immune response and for the connections that allow cells to join together to form tissues. Structured lipids known as glycolipids are typically present on the extracellular face of eukaryotic cell membranes.Glycolipids have a non-polar section connected to the lipid component and a polar head connected to the carbohydrate portion. Glycolipids are a crucial part of eukaryotic cell membranes due to their amphipathic nature, which is when a molecule possesses both hydrophilic and lipophilic qualities.
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PLEASE HELPP!!!!
Write a story based on the 10 observations that are listed BELOW that describes what you see and what you think may have happened.
10 OBSERVATIONS
-door
-chair
-bottle
-shoes
-window
-lap
-rug
-person
-cup
-bed
Answer:
The room I'm looking at belongs to one person, and it's a mess. It's possible he and his pals went out for a few drinks to toast a special occasion. For what reason should he be tipsy? Because there was an open bottle of liquor on the rug, a cup on the end table, a chair in an inverted position, the left main door was propped open, and the shower door was open.
The room is a mess, but I could make the case that it was neat and tidy before his after-work drinking spree started because of the condition of some of his items. The shoes he's wearing indicate that it was probably late in the day. I imagined him staggering back to his room and into the bathroom for a cold shower or to freshen up, but the high concentration of alcohol in his system meant he probably dropped asleep as soon as he got there.
Yet, given how the objects are scattered around as if someone were seeking for them, this may constitute foul play. When the individual on the floor became an obstruction, they quickly made plans to have him removed. Assuming they manage to knock him out, he won't remember who they are. Evidence from his bed suggested that his wallet, lap, and other items had been stolen.
Last but not least, I was wondering whether this was a hotel until I saw a "Vacancy" sign in the entryway. Not being from the area, he became confused by the variety of designs everywhere, including the window, and fainted. A single individual wouldn't decorate with things that are a clear distraction.
Explanation:
"Lap" may indicate various things, but in this context, it refers to a pocket or pouch that is lying on the bed.
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Which of the following statements BEST describes a negative feedback loop using the example of body temperature?
A. When you shiver, your body is telling you that you need to eat more food because your blood sugar levels are low.
B. When your body temperature gets too high, you sweat to help you increase your
body temperature.
C. When your body temperature moves higher or lower than the "normal state," your body systems work to return the body back to the ideal temperature.
D. When the body's temperature moves below the set amount, your body works to raise the core temperature back to the ideal temperature.
C. When your body temperature moves higher or lower than the "normal state," your body systems work to return the body back to the ideal temperature.
What difference do you notice compared to the other the church bio molecules in nucleus acid ?
The most crucial macromolecules for maintaining life are nucleic acids. They contain instructions for a cell's proper operation as well as the genetic code for that cell.
Deoxyribonucleic acid (DNA) and Ribonucleic acid (RNA) are the two primary forms of nucleic acids. All living things, from single-celled bacteria to multicellular mammals, have DNA as their genetic makeup. It is located in the organelle, chloroplasts, and mitochondria as well as the nuclei of eukaryotes. Prokaryotes lack a membranous sheath around their DNA. A cell's genome is its entire genetic makeup, and genomics is the study of genomes. DNA and histone proteins combine to form a complex to create chromatin, the material that makes up eukaryotic chromosomes, in eukaryotic cells yet not in prokaryotes. There may be hundreds or thousands of genes on a chromosome. Many genes encode for the production of protein molecules, while some genes produce RNA. DNA manipulates the genes to turn on or turn off various biological processes.
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Ion channel opens within 1 millisecond:________
a. ligand-gated
b. enzymereceptor
c. g-protein coupled receptor
d. enzyme receptor or g-protein coupled receptor
e. all three
Ion channel receptors are an important part of signal transduction in the nervous system and can rapidly and directly convert neurotransmitter messages into electrical currents.
In the past decades, it has become clear that ionotropic receptors are regulated through protein-protein interactions with other ion channels, G protein-coupled receptors, and intracellular proteins. These other proteins can also be regulated through their interaction with ion channel receptors. This bidirectional functional crosstalk is critical for key cellular functions such as excitotoxicity in pathological and disease states such as stroke, and for the fundamental dynamics of activity-dependent synaptic plasticity. Thus, protein interactions with ion channel receptors can enhance the computational capacity of neuronal signaling cascades and also represent new targets for therapeutic intervention in neuropsychiatric disorders.
In this review, we highlight several examples of ion channel-receptor interactions and their potential clinical utility in neuroprotection.
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Please help!
Match the sequences with the mutations that occurred in them.
Group of answer choices
A
B
C
D
The type of mutations occurred in the shown chromosomes are as follows:
A - Translocation
B - Deletion
C - Inversion
D - Addition
What is chromosomal aneuploidy?Chromosomal aneuploidy is referred as the mutations in the chromosomes that results in abnormal number of chromosome. Aneuploidy is an outcome of anomaly in the cell division.
Down syndrome is a common example of chromosomal aneuploidy in which trisomy of chromosome number 21 is observed. The chromosome has one extra copy present.
It is possible to scan chromosomal aneuploidy during the first trimester to avoid genetic complications in the child.
Thus, chromosomal aneuploidy is not a common condition but if happens, it can pose several complications.
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Which loss of function would occur if you introduced a chemical that functioned as an inhibitor of the ryanodine receptor channel?
Myosin would not be able to bind to actin in order to cause shortening of the sarcomere.
What is ryanodine receptor ?In both cardiac and skeletal muscle, ryanodine receptors (RyRs), which are found in the sarcoplasmic/endoplasmic reticulum membrane, are in charge of releasing Ca2+ from intracellular reserves during excitation-contraction coupling.
Millimolar doses of caffeine activate RyRs. RyR sensitivity to Ca2+ increases noticeably (from micromolar to picomolar) in the presence of high (more than 5 mmol/L) caffeine concentrations, making baseline Ca2+ concentrations activatory.Learn more about Receptors here:
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Mucosal cells make up the mucosa, which lines the lumen. Mucosal cells are in direct contact with food and harsh digestive secretions. How long do the mucosal cells live?.
Answer: The mucus and mucins of the goblet cells and enterocytes provide the first defense line of the gastrointestinal tract and interact with the immune system.
Explanation:
What do biological anthropologists call the taxonomic group that includes humans and humanlike ancestors, excluding living nonhuman primates?
Biological anthropologists call the taxonomic group that includes humans and humanlike ancestors, excluding living nonhuman primates as hominins.
In the field of anthropology, hominins can be described as the taxonomic group consisting of modern humans, ancestral humans, and extinct species of humans.
Primates that do not have human-like origin are not a part of the hominins. Humans are the current living species of hominin origin. The ancestors through which humans came into existence are studied through fossils and are extinct hominins.
Biological anthropologists differentiate hominins from other primates based on their special characteristics such as straight posture, having specific language speaking ability, walking on two legs etc.
The study of hominin evolution makes it possible to understand the complexity of modern humans and how they came into existence.
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Limestone bedrock can weather and dissolve. The erosion of the limestone can result in all the following landforms except
Caverns
Ridges
Sinkholes
Underground waterways
Answer ASAP
The erosion of the limestone can result in all the following landforms except ridges.
What is weather?The term climate refers to the average weather condition of a place. It refers to the way in which the weather of a place stays over a given period of time. The weather condition of a place is known to change from time to time.
Limestone is one of the minerals that could occur at a given place. The presence of the limestone in a place is able to change or alter the landform or the arrangement of the land in a given area.
Some of these changes are very much significant and can be easily observed in an area where there is a Limestone bedrock. Landforms could be a characteristic of a place and we know that it could be used to identify a given area.
Hence, the erosion of the limestone can result in all the following landforms except ridges.
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Could someone help me out with this question please?
The available hydrogen bond donors and acceptors of guanine and cytosine pair with one another in space to form a nitrogenous base pair.
Define guanine.One of the four nucleotide bases in DNA, along with adenine (A), cytosine (C), and thymine, is guanine (G) (T). Guanine nucleotides on one strand pair with cytosine bases on the other strand in a double-stranded DNA molecule. Information in DNA is encoded by the four nucleotide bases' order.
Define cytosine.Along with adenine, guanine, and thymine, cytosine is one of the four nucleobases that can be found in DNA and RNA. It is a pyrimidine derivative with two attached substituents and a heterocyclic aromatic ring. Cytidine is the nucleoside of cytosine. It creates three hydrogen bonds with guanine during the Watson-Crick base pairing process.
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Why is it a challenge for explorers like Eddy Cartaya to correctly map the caves that form in Sandy Glacier?
What are some of the interesting items that Cartaya and his team have found inside Snow Dragon Cave?
Over the last two years, explorers Eddy Cartaya and Brent McGregor have used ropes, ice screws, wet suits, and flashlights to map out more than a mile of channels beneath a glacier on Mount Hood in Oregon, in what are considered to be America's largest known glacier caves outside of Alaska.
McGregor and Cartaya named three caves in the Sandy Glacier after themselves: Snow Dragon, Pure Imagination, and Frozen Minotaur. The combined 7,000 feet of passageways extend beneath the ice like fingers of a hand.
The caverns are located in the Sandy Glacier, which clings to Mount
Hood's western face at thousands of feet above sea level.
Some of the shafts are narrow, but others expand to 80-foot-wide chambers. They occasionally scale waterfalls that have frozen in place in the caverns. Along the way, they take measurements to see how the caverns are altering.
Cartaya and McGregor escorted Oregon Public Broadcasting's Amelia Templeton and others into the caverns towards the end of the summer, showing us incredible caves that seem like sets from a sci-fi film.
Templeton and her OPB colleagues were inspired by the breathtaking views to develop Thin Ice, a stand-alone show on the caverns. OPB will also devote an upcoming episode of Oregon Field Guide to the discovery.
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True or False: There is one universal scientific method.
Answer:
False.Explanation:
There is no such unique standard method.. Scientific progress requires many methods bit students in introductory science courses are taught that 'the scientific method is a straightforward procedure involving testing hypotheses derived from theories inorder to test those theories.According to vsepr theory, which one of the following molecules is trigonal byramidal?
a. sf4
b. xef4
c. nf3
d. sf6
e. pf5
Based on valence electrons, VSEPR theory specifies the molecule geometry. The repulsion between the electron pairs determines where the bonded atom is located.
According to VSEPR theory, PF5 molecules are trigonal pyramidal.
How does the VSEPR theory work?Founded on the digit of valence shell electron bond pairs between the atoms in a molecule or ion, the valence shell electron pair repulsion (VSEPR) theory is a model used to predict 3-D molecular shape. According to this view, electron pairs choice place themselves to reduce the results of their joint aversion. The geometry of individual molecules can be predicted using the chemical model known as the valence shell electron pair repulsion hypothesis based on the number of electron pairs that surround the core atoms of the molecules. In honor of its two primary creators, Ronald Gillespie and Ronald NY Holm, it is sometimes known as the Gillespie-NY Holm theory. In chemistry, the number of electron pairs surrounding a core atom can be used to predict the three-dimensional geometries of molecules using the valence shell electron pair repulsion (VSEPR) theory.Therefore the correct answer is option e. pf5
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What structures allow plants to readily take up carbon dioxide from the atmosphere?.
After a brain operation, a laboratory rat no longer displays fear when placed in a cage with a snake. which part of the rat's brain was most likely lesioned during the operation?
The present study sought to distinguish the independent contributions of the amygdala and hippocampus to fear expression.
Rhesus monkeys (Macaca mulatta) with bilateral excitotoxic amygdala lesions (n=4), bilateral excitotoxic hippocampal lesions (n=8), and non-operated controls (n=9) reach for junk-neutral objects or fear is ready. Trigger a stimulus (rubber snake or jumping rubber spider) for a food reward. The monkey was exposed to each stimulus for 30 seconds. On each trial, the monkey's latency to receive the food reward was recorded and the monkey's systemic response to the object was assessed. Confirming previous studies, both manipulated groups exhibited shorter latencies to feed and less defensive and approaching behavior when exposed to anxiety-inducing stimuli compared with controls. understood. However, only monkeys with amygdala lesions showed abnormal and exaggerated visual interest in snakes and spiders. In contrast, monkeys with hippocampal lesions exhibited behaviors unrelated to the presence of fear stimuli, indicating a lack of interest and emotional response to snakes and spiders.
These data indicate that the hippocampus and amygdala independently contribute to the global expression of defensive responses.
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Which of the following are characteristics of living things?
-
A) food, water, stable internal conditions
B) reproduce, respond to stimulus, DNA, cells, metabolism, grow and develop
C) grow and develop, water, stable internal conditions,
D) DNA, homeostasis, food, living space, grow and develop
Answer:
B
Explanation:
All living things get pregnant and give birth to another person and every person is made of cells and they also grow from a baby into a teenager and so on
The lissencephalic individual in the chapter's opening vignette had a brain that lacked ______.
Reactive astrocyte responses with increased number (variables), length and complexity of cellular processes.
In the central nervous system, astrogliosis promotes post-injury repair processes such as inflammation and necrosis. Axonopathy, Distal CNS and PNS - Axonal degeneration affecting distal portions of peripheral nerves and long axons of the CNS (spinal cord). PNS Distal Axonopathy - Neuropathy with degeneration of peripheral nerve endings and anterior terminal axons. Axonal rupture – Axonal injury of peripheral nerves degenerates distal to the site of injury, leaving the scaffold intact, increasing the potential for regeneration and enabling effective reinnervation. CNS blood-brain barrier – barrier to the free movement of certain substances from brain capillaries into CNS tissues. It relies on tight connections between capillary endothelial cells and selective transport systems for these cells.
The basement membrane of endothelial cells and the foot processes of astrocytes adjacent to the basement membrane may play a role in barrier function.
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If a hypothesis is not testable, is the hypothesis wrong?
A number of different mutations can alter structure, including __________. (check all that apply.)
A number of different mutations can alter structure, including _____inversions, deletions, translocations, duplications_____.
What is inversions, deletions, translocations, duplications ?The transfer of a chromosomal segment to another chromosome is known as chromosomal translocation. When a piece of a chromosome separates, spins 180 degrees, then reattaches to the same chromosome, this process is known as chromosomal inversion.
The primary distinction between chromosome deletion and duplication is that although chromosome deletion results in the loss of genetic material, chromosome duplication results in the addition of extra copies of genetic material. The genetic makeup of an organism is carried on chromosomes.Learn more about Mutation here:
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Plant species make glucose molecules in a process called __________________. They then use these molecules as a source of energy.
A. Carbon Dioxide
B. Photosynthesis
C. Chemical Energy
D. Protein Synthesis
Answer:
Photosynthesis!
Explanation:
This is the process by which plants use sunlight, water, and carbon dioxide in order to create oxygen and energy in the form of sugar.
An area that is between two solid,
impervious rock layers and can form
an artesian well is called a(n)
aquifer.
A. confined
B. surface
C. downhill
An area that is between two solid, impervious rock layers and can form an artesian well is called a(n) aquifer. The correct answer is option A.
What is the process of formation of artesian wall ?It is mostly formed by the rocks that are permeable in nature and when it receives water level higher than its the level of aquifier at that time confined artesian wall is formed.
If a confined aquifer is given by tapping by a well then in this case water will cross the the top of the aquifer and might also flow from the well onto the land surface which is beneficial for the situation of formation of subject.
The source of Water confined in this way is said to be under artesian pressure, and the aquifer is called an artesian aquifer.
Therefore, the wall that is formed between two solid, impervious rock layers and can form an artesian well is called a(n)aquifer that is confined in nature.
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what are essential amino acids?
Answer:
histidine,isoleucine, leucine, lysine, methionine, phenylalanine, threonine, tryptophan, and valine
Explanation:
An essential amino acid, or indispensable amino acid, is an amino acid that cannot be synthesized from scratch by the organism fast enough to supply its demand, and must therefore come from the diet.
Answer:
It's an amino acid that cant be synthesized from scratch by an organism quick enough to supply the demand, it must come from the diet
Explanation:
Would you ban dihydrogen Monoxide?
Answer:yes its poisonous
Explanation:
Answer:
Very much toxic for our well being
A glucose-na symport will transport na _______ the cell and glucose __________ the cell.
A glucose-Na symporter will transport Na and glucose in the same direction into the cell.
A membrane protein called a symporter is necessary for the controlled translocation of two different substances across cell membranes. Symporters, a type of cotransporter, work in the plasma membrane to carry substances across the cell membrane at the same time and in the same direction.
A transmembrane protein known as the sodium-glucose symporter performs sodium-driven secondary active transport in the epithelial cells of the small intestine. It is found on the apical membrane of the epithelial cells.
In order to pass through the cell, sodium and glucose will both adhere to the symporter at once. The gradient produced by the sodium-potassium pump will be fixed by this procedure.
Due to their attachment to the symporter, glucose-Na will therefore move in the same direction.
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I need help on my homework.
Considering the case of the gray and albino mice;
the probability of getting gray offspring is 75%the probability of getting albino offspring is 25%the possible genotypes among the offspring are GG, Gg, and ggthe possible phenotypes among the offspring are gray and albinothe probability of getting heterozygous offspring is 50%the probability of getting homozygous offspring is 50% the genotype of the female is Gg since it is gray and its father is albino.What is genotype of an organism?Genotype refers the sum of the alleles or variant forms of a gene, that an organism possesses.
The genotype of an organism may either be heterozygous of homozygous for a particular trait.
Considering the case of the gray and albino mice; albino mice have a homozygous recessive allele while gray mice may have hom0zygous or heterozygous allelic pairs.
Let the two allele be G and g.
GG genotype = gray phenotype
Gg genotype = gray phenotype
gg genotype = albino phenotype
The father of the gray female mice is albino, hence its genotype is Gg
The male mice is heterozygous, hence its genotype is Gg.
The offspring of the cross is given below:
Gg x Gg = GG, Gg Gg, ggthe probability of getting gray offspring = 3/4 or 75%
the probability of getting albino offspring = 1/4 or 25%
the possible genotypes among the offspring are 3; GG, Gg, and gg
the possible phenotypes among the offspring are 2; gray and albino
the probability of getting heterozygous offspring is 2/4 or 50%
the probability of getting homozygous offspring is 2/4 or 50%
the genotype of the female is Gg since its father is albino and it is gray.
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If a template strand of dna has the sequence gactta, transcription will result in a:_________
If a template strand of DNA has the sequence GACTTA, transcription will result in a single RNA strand with the sequence CUGAAU.
It is through the process of transcription that information from DNA is transcribed to mRNA. The mRNA strand is then translated to proteins.
After transcription, a single RNA strand is formed because, unlike DNA, RNA is single-stranded.
In the DNA, the nucleotide base adenine(A) pairs with thymine (T), and cytosine (C) pairs with guanine(G). In the RNA, the thymine base is missing hence adenine(A) pairs with uracil (U).
Hence, the complementary RNA formed for the DNA template with the sequence GACTTA, will be CUGAAU. G will pair with C, A with U, C with G, T with A, T with A, and A with U.
Although a part of your question is missing, you might be referring to this question:
If a strand of DNA has the sequence GACTTA, transcription will result in a ________.
A) single RNA strand with the sequence CUGAAU
B) DNA double helix with the sequence CTGAAT for one strand and TAAGTC for the complementary strand
C) single RNA strand with the sequence CTGAAT
D) DNA double helix with the sequence CUGAAU for one strand and UAAGUC for the complementary strand
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According to eastwick & finkel, ________ competitors evoke more jealousy in both men and women than do homely rivals.
Men and women are more likely to feel jealous of attractive rivals than of unattractive ones.
Paul Eastwick's study focuses on the psychological processes that enable romantic partners to establish and maintain committed and connected relationships.
We know that men regard a woman's physical attractiveness because it is tied to her fertility, but women value a man's dominance because it is related to his capacity to offer resources.
In a vignette-based study, it was discovered that women were more sensitive to a rival's appearance than men were, but males were more sensitive to the rival's superiority. This is because when a rival exhibits qualities that are seen to be significant to the other sex, jealousy is triggered.
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A heterotropic effector that activates an enzyme will have what effect on the sigmoidal kinetic plot (v vs. [s])?
An enzyme that is activated by a heterotropic effector will have The sigmoidal kinetic plot will show a shift in the curve to the left.
What exactly are enzymes?Enzymes, which are proteins, speed up chemical reactions in our bodies. Enzymes are essential for several activities, including digestion and liver function. Possessing too much or too little of a certain enzyme might cause health problems. The enzyme in our blood can also be used by medical personnel to check for wounds and infections.
What are the five purposes of enzymes?Numerous biological processes, including development, blood clotting, disease treatment, respiration, digestion, reproduction, and many more, are aided by enzymes.
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In osseous tissue, the narrow channels connecting neighboring lacunae are called.
In osseous tissue, the narrow channels connecting neighboring lacunae are called canaliculi.
Osseous tissue is a form of tissue, right?tissue that supports and binds bones together. Bone is composed of cancellous tissue and compact tissue (the tough outer layer) (the spongy, inner layer that contains red marrow). Osteoblasts, which build bone, and osteoclasts, which break down bone, keep osseous tissue in good condition.
Osseous tissue provides the strength and structure to bone . Bone is made up of compact tissue and cancellous tissue . Oessous tissue is maintained by bone forming called oestooestolastlast .
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Approximately how many atoms thick is a cell membrane, assuming all atoms there average about twice the size of a hydrogen atom?.
The diameter of a hydrogen is 10^−10m. Thickness of a cell membrane is 10^8 m.
The thickness in terms of atoms us,
The thickness in terms of atoms us, = d membrane/ 2* d(H-atom)
Substitute 10^−8 m for d(membrane) and 10^−10 m for d(H−atom)
Thickness in terms of atoms = 10^−8 m/2x10^-10 m
= 50 atoms
Hence, thickness of a cell membrane is equal to the combined thickness of 50 atoms
What are Cell membrane ?It is also called the plasma membrane. It protects the cell from the outer environment. It is a thin shell between the interior of all the cells and the environment.
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