A discrete, locally folded unit of protein tertiary structure usually having a specific function best describes __________. A discrete, locally folded unit of protein tertiary structure usually having a specific function best describes __________. a domain a motif a complex quaternary structure

Answers

Answer 1

Answer:

a domain

Explanation:

The domains are the basic units of the proteins, they are polypeptide segments (about 30 -200 amino acids) that have a defined tertiary structure and play specific biological functions including, for example, enzymatic and structural activities. Protein domains are evolutionary conserved, it means that these polypeptide segments can be found in phylogenetically related species and share sequence homology. Examples of protein domains include the zinc finger and the helix-turn-helix domains which are involved in protein-DNA interactions of transcription factors.


Related Questions

Which of the following is a primary function of carbohydrates?

Choose ONE answer:

A. Acting as a long-term energy source.

B. Speeding up chemical reactions.

C. Storing genetic information.

D. Providing short-term energy storage.​

Answers

Answer: For me providing short - term energy storage is C so whatever providing short - term energy storage is on yours that's the correct answer. :D have a nice day.

Explanation: Carbohydrates are the main energy source of cells.

They provide a quick energy supply for all types of cellular activities.

The correct answer is

Providing short-term energy storage

The correct answer is option D. Providing short-term energy storage.​

What Do Carbohydrates Do to Your Body?

Carbohydrates are the main source of energy for your body: they help fuel your brain, kidneys, myocardium, and central nervous system. For example, fiber is a carbohydrate that aids digestion gives you a feeling of fullness, and lowers blood cholesterol levels.

Carbohydrate Function

Energy supply and blood sugar regulation.Gentle use of protein to generate energy.Degradation of fatty acids and prevention of ketosis.Biological recognition process.flavors and sweeteners.fiber.

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A science student makes the following statement:
If ferns need warm weather to grow, ferns in the warmer
areas will grow faster.
What is the student doing?
A. Conducting an experiment
B. Drawing conclusions
C. Forming a hypothesis
ОО
D. Making a prediction

Answers

Answer: D. Making a prediction

During an intramuscular injection procedure, the medication label should be checked:

Answers

Answer:

The medication label should be checked by comparing it with the  MAR (Medication Administration Records or therapeutic documentation care plan TDCP).That is the label  printed on the medication should be compare with the Medication  Administrations records  

Explanation:

Ideally this should be done three times, when it is removed from the medication cart,and before and after  it was removed form the  medication  cart.

Besides,the date of expiration should be checked,and the regulations concerning administrations of multi-does vial should be  taken into considerations.

The medications mode of storage should be taken into confederation,proper storage must be ensured.

Generally the application of medication through injection into the muscles for faster absorption  into the blood streams for fast distribution is called IM. This is aided by the rich blood supply to the muscles.Therefore it is a faster mode of blood application than the subcutaneous routes.

URGENTT!
does a fire take food for energy?
does a fire reproduce?
does a fire produce waste?

Answers

Answer:

Yes, a fire takes food for energy.

No, a fire doesn't reproduce.

Yes, a fire produces waste.

Explanation:

For fire, the food that it requires is the objects that help in the process of burning. The objects can be wood, paper, coal, fuel, etc. Oxygen is required for the process of burning to take place.

The process of reproduction undergoes in living beings. Fire produces heat and light but this cannot be termed to be a process of reproduction.

Burning produces wastes in the form of ash and burned products. Therefore, it can be said that fire produces wastes.

A typical eukaryotic nucleus has to exchange a great deal of protein and nucleic acid material with the surrounding cytosol of the cell. Which choice correctly describes a feature of most nuclei that helps promote this exchange

Answers

Answer: A typical Eukaryote has an organized nucleus as well as an organized cell organelles.

The nucleus is enclosed in a nuclear envelope and the whole cell organelles are further enclosed in a plasma membrane (cell membrane).

From the question,the choice that correctly describe the feature of most nuclei that helps to promote the exchange of protein and other nucleic acids between the nucleus and the surrounding environment is the presence of nuclear pores which allows for selective movement of materials/items in and out of the nuclear space in a regulated manner.

Which flowchart correctly lists the structures in order from smallest to largest?
gene Right-arrow DNA Right-arrow chromosome Right-arrow nucleus
gene Right-arrow chromosome Right-arrow DNA Right-arrow nucleus
DNA Right-arrow gene Right-arrow chromosome Right-arrow nucleus
DNA Right-arrow chromosome Right-arrow gene Right-arrow nucleus

Answers

Answer:

gene Right-arrow DNA Right-arrow chromosome Right-arrow nucleus

Explanation:

trust me I'm smart

Listing the structures in order from smallest to largest follows this sequence ( A ) ; Gene right arrow DNA right arrow Chromosome right arrow Nucleus

Gene is the basic unit of heredity in animals, they are made up of DNA strands, while chromosomes ( thread like structures ) are positioned inside the Nucleus of ( plant and animal cells ).

Chromosomes are comprised of proteins and single molecule DNA that are passed from parents to its offspring.

Hence we can conclude that the flowchart that lists the structures in order from smallest to largest follows this sequence ( A ) ;  Gene right arrow DNA right arrow Chromosome right arrow Nucleus.

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Why is the frequency of natural disasters increasing? Select one: a. There are less natural hazards occurring. b. Human population in areas prone to natural hazards has increased. c. Deaths from natural disasters has decreased in developed countries and increased in developing countries.

Answers

Answer:

I hope option c is the correct answer.

Explanation:

As for option 1 its totally in correct.

for option 2 human population is not always greater in the disaster places.

for option three developed countries are developed with all the determined factors but developing countries dont see all the factors as they destroy nature while making road which causes landslide, which causes death.

Hope it helps...

Answer:

Option C

Explanation:

I believe Option C is the correct answer

In order for translation to occur: Please choose the correct answer from the following choices, and then select the submit answer button. transcription must be occurring simultaneously. there must be large numbers of free amino acids present in the cytoplasm. the DNA must produce large numbers of free amino acids. replication must be occurring simultaneously. the nuclear membrane must first dissolve

Answers

Answer:

there must be large numbers of free amino acids present in the cytoplasm

Explanation:

In order for translation to occur, there must be a large number of free amino acids in the cytoplasm.

These free amino acids are usually carried by the transfer RNA which also carries the corresponding mRNA codon.

During translation, as the codons in the mRNA match their complements in the tRNA, the amino acid being carried by the tRNA is released and a peptide bond is formed between subsequent amino acids until the required polypeptide bond is formed.

Translation and transcription only occur simultaneously in prokaryotic cells where there is no barrier between the cell's genetic materials and the cytoplasm, unlike in eukaryotic cells where the genetic materials are housed in the membrane-bound nucleus.

As células são os componentes fundamentais de todos os seres vivos, não sendo encontradas apenas nos vírus. Algumas pessoas costumam dizer que as células são formadas por membrana plasmática, citoplasma e núcleo. Entretanto, nem todas as células possuem núcleo organizado, recebendo o nome de:

Answers

Answer:

Entretanto, nem todas as células possuem núcleo organizado, recebendo o nome de: células eucarióticas

Explanation:

As células eucarióticas são caracterizadas por possuir um núcleo definido, localizado no citoplasma. A diferença que tem com as células procarióticas é que o núcleo nelas está em uma região do citoplasma chamada nucleoide.

Além disso, as células eucarióticas têm um nível mais alto de complexidade em relação à sua informação genética, podendo realizar dois processos para replicar seu DNA: mitose e meiose

the coyotes diet includes wide variety of small mammals livestock birds reptiles carrion fruit and vegetables

Answers

Answer:

Assuming this is a poorly formatted multiple choice question, the answer is most certainly small mammals, as coyotes do not prey on livestock or reptiles. They are omnivores, meaning they eat just about anything. They are known to also eat fruits.

Which of the following is not a method of cell signaling?
A. Short range message molecules
B. Direct contact
C. Hormones
D. Enzymes

Answers

Answer:

C: Hormones

Explanation:

hormones do not "signal" other cells. I hope this helps :)

The correct answer is option C. Hormones.

What is the simple definition of hormones?

Hormones are chemicals that act like messenger substances in the body. After being made in one part of the body, they move to other parts of the body, where they help control how cells and organs work. For example, insulin is a hormone made by the beta cells of the pancreas.

In endocrine signaling, signaling molecules (hormones) are secreted by specialized endocrine cells and transported through the circulatory system to affect target cells in remote parts of the body.

Hormones are so many essential parts of your body's system that they regulate much of what your body does. Hormones regulate growth, libido, sexual development, reproduction, sexual function, metabolism, and thirst, among other things. They simply tell the body what to do to keep it running smoothly.

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Fine-tune reabsorption of calcium ions occurs in which of the following regions? Group of answer choices proximal tubule loop of Henle early distal tubule late distal tubule and collecting duct

Answers

Answer:

Proximal tubule

Explanation:

Calcium is an important element in the body with majority of its percentage located in the bones. Its ions perform different functions in the body which includes muscle contraction, hormones secretion and including all other functions.

Calcium ion is absorbed in the intestines and then reabsorbed in the kidney. Much percentage of calcium ions is reabsorbed by passive mechanisms in the proximal convoluted tubule of the kidney tubule as compared to all other parts of the kidney tubule.

Please help me
Which statement correctly explains what a scientific theory is? A. statements that describe observed realities. B. a concept backed by many well-supported hypotheses. C. a guess that might explain an observation. D. a concept that is absolutely true

Answers

Answer:

B. a concept backed by many well-supported hypotheses

A forensic scientist is trying to find out the number of adenine bases in the DNA sample that he obtained from a crime scene. What can he assume about the number of adenine? The number of adenine bases will be equal to the number of guanine bases. The number of adenine bases will be equal to the total of all the other bases. The number of adenine bases will be equal to the number of thymine bases. The number of adenine bases will be half of the number of cytosine bases.

Answers

Answer:

The correct option is;

The number of adenine bases will be equal to the number of thymine bases

Explanation:

The four chemical bases that make up the DNA code are adenine (A), guanine (G), thymine (T), and cytosine (C) which are arranged based on a specif organism such that they represent the information regarding the building of the organism

The chemical bases of the DNA are found in pairs consisting of two chemical bases  which are then known as base pairs. The possible base pairs are;

Adenine (A) pairing with thymine (T)

Cytosine (C) pairing with Guanine (G)

Therefore, the forensic scientist should expect to find that the number of adenine bases will be equal to the number of thymine bases.

Since the scientist was trying to find out the number of adenine bases in the DNA sample, assumption that the number of adenine would be equal to the number thymine would help.

According to the base-pairing rule of Chargaff, adenine always pairs with thymine while guanine always pairs with cytosine.

Going by this rule, we can say that the number of adenine must be equal to the number of thymine while the number of guanine must be equal to the number of cytosine in any DNA.

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Some individuals can be heterozygous for a particular mutation.This means that one of their chromosomes is normal and the other is mutated in some way. Approximately ___ of the gametes produced by an individual heterozygous for a deletion will be non viable.

Answers

Answer:

1/2 (50%)

Explanation:

During meiosis, homologous pairs of chromosomes are separated in order to form haploid cells, and this separation or assortment is known to be a random process. In consequence, the chromosome carrying the mutation will have a 1/2 (50%) chance of being inherited in the gamete that, after fertilization, produces a non-viable organism. In consequence, the non-mutated chromosome also will have a 1/2 chance of occurring in the offspring

While eating you should not laugh ar talk you may have heard this statement from your elders . Do you agree with this statement ? Give reasons for your answer

Answers

Answer:

One might believe that this statement has some truth to it. It is considered bad manners to talk while you are chewing your food. Let alone laughing (also a choking hazard). However it shouldn't be taken too seriously. Conversation on the dinner table can be fun while enjoying a meal with many other people. However conversation is done before taking a bite as talking with your mouth full is disrespectful to others and shows bad manners.

Explanation:

Question 6: What is the average number of staghorn corals within this time frame?

Answers

Answer:

14 percent

Explanation:

Answer:

14 %

Explanation:

Confirm if all of these are correct for 10 points + brainliest. If they are incorrect, please correct it.

Answers

Answer:

Correct

I am not sure.

Explanation:

Hope it helps you...

A person has a sex-linked inheritable disease. Which statement is true about the set of chromosomes which are likely to carry the genes for this disease?

1-The gene is present on a single pair of chromosomes.
2-The gene is present multiple pairs of chromosomes.
3-The gene is always present on an X chromosome.
4-The gene is always present on a Y chromosome.​

Answers

The statement is true about the set of chromosomes that are likely to carry the genes for this disease is the gene is present multiple pairs of chromosomes.

What is an example of autosomal?

An autosomal recessive disorder needs two copies of the altered gene to compel the disease.

For example the Huntington's disease.

Thus, option "B" is correct, The gene is present multiple pairs of chromosomes.

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Answer:

b

Explanation:


What two characteristics of life are evident in viruses?



Please help me with this question

Answers

Answer:

Viruses do, however, show some characteristics of living things. They are made of proteins and glycoproteins like cells are. They contain genetic information needed to produce more viruses in the form of DNA or RNA. They evolve to adapt to their hosts.Living characteristics of viruses include the ability to reproduce – but only in living host cells – and the ability to mutate.

Gastrin, histamine, endorphins, serotonin, cholecystokinin, and somatostatin are hormones or paracrines that are released directly into the lamina propria. Which of the following cell types synthesize and secrete these products?
a) parietal cells
b) enteroendocrine cells
c) mucous neck cells
d) zymogenic cells

Answers

Answer:

The correct answer is option b, that is, enteroendocrine cells.

Explanation:

The specialized cells of the pancreas and the gastrointestinal tract exhibiting endocrine function are termed as enteroendocrine cells. These cells generate gastrointestinal peptides or hormones in response to a distinct kind of stimuli and discharge them into the bloodstream for the systemic effect. These are the most varied endocrine cells found within the body.  

The intestinal enteroendocrine cells produce somatostatin, cholecystokinin, motilin, enteroglucagon, and neurotensin hormones. The G cells present within the intestine produce gastrin. In the gastric glands, the gastric enteroendocrine cells are present, which produce histamine, and others like cholecystokinin, alpha and gamma-endorphin, somatostatin, and others.  

In the islets of Langerhans, the pancreatic enteroendocrine cells are present, which produce hormones like ghrelin, amylin, somatostatin, and pancreatic polypeptide.  

name three factors needed for germination to occur in plants​

Answers

Answer:

Three factors needed for germination to occur in plants:

1 - water

2 - sunlight

3 - air

Which of the following membrane-enclosed organelles contains several oxidases that are involved in oxidation of fatty acids and amino acids during normal metabolism and in detoxification of chemicals like alcohol in the liver?
a) peroxisomes
b) mitochondria
c) proteasome
d) ribosomes
e) lysosomes

Answers

Answer: The correct answer is a) Peroxisomes.

Explanation: This kind of membrane enclosed organelles has a mainly function that is the oxidation, this source manages to break fatty acids and during normal metabolism, they also has many enzimes like d-aminoacid oxidases, is another of their functions. Further, the catalase enzime (another enzime which is inside peroxisomes) manages the detoxification of chemicals like alcohol from alcoholic drinks (catalases transform the H2O2, which is toxic, into H2O to detoxificate the liver).

Feedback inhibition prevents cells from:____________.
a. the harmful effects of enzyme activation by covalent modification of unneeded enzymes.
b. making products that are not needed by inhibiting the activity of enzymes in biosynthetic pathways allosterically.
c. irreversibly inhibiting critical enzymes.
d. destroying enzymes by proteolytic cleavage when they are needed in biosynthetic pathways.
e. accumulating unnecessary proteins.

Answers

Answer:

b. making products that are not needed by inhibiting the activity of enzymes in biosynthetic pathways allosterically.

Explanation:

The feedback inhibition is a method of cellular control were the active cellular enzymes is inhabited and it allows the cells to regulate how enzymes are needed to produce at the end.  This feedback acts as a first enzyme amino acid production and is usually complete through the allosteric site. It changes the shapes and behavior of the active cell.

atalie wants to surprise her daughter on her birthday. So, Natalie orders her daughter’s favorite toy online. Workers wrap the toy and ship it to Natalie’s address, just in time for her daughter’s birthday. Identify the organelle that performs a similar function. Does anyone now it? pls quick, QUICIKKK

Answers

Answer:

ship is the answer

Explanation:

because you said they order and they ship it

Answer:

Golgi apparatus

Explanation:

Natural killer (NK) cells __________. Natural killer (NK) cells __________. engage in immunological surveillance recognize and kill cancer cells cause abnormal cells to undergo lysis NK cells perform all of these roles.

Answers

Answer:

NK cells perform all of these roles

hope this helps

-lvr

How might scientists compare the efficiency of different energy sources?
A. None of these.
B. Weigh them to compare their masses.
C. Use a mass spectrometer to determine their chemical makeups.
D. Burn them and see how hot they can make a water sample.

Answers

A None of these is the answe I think

Which type of wind is pictured?
A. Sea breeze
O B. Global wind
O C. Prevailing wind
O D. Land breeze

Answers

Answer:

Sea Breeze

Explanation:

The hot air from land is going and is is becoming cool air from the ocean

Answer:

A Sea Breeze

Explanation:

In your lab you are studying the genome of venomous rattlesnakes to find the gene which codes for their venom glands. You have two
rattlesnakes, one rattlesnake has a mutation but can still produce venom. You compare his DNA to a normal rattlesnake. What type of
mutation has occurred?
Normal: AATCGCTACGCACGTCAG
Mutated: TATCGCTACGCACGTCAG
A. Deletion Mutation
B. Nonsense mutation
C. Silent Mutation
D. Missense mutation

Answers

It is actually a mis-sense mutation.
ATA on DNA is UAU on mRNA. This codon has the amino acid ‘Leu’
TAT on DNA is AUA on mRNA. This codon has the amino acid ‘Ile’
A silent mutation means that the amino acid is not changed. This is a missense mutation because the amino acid is changed but the snake is still able to produce venom.

(Q030) All members of the nuclear receptor family Group of answer choices are cell-surface receptors. do not undergo conformational changes. are found only in the cytoplasm. interact with signal molecules that diffuse through the plasma membrane.

Answers

Answer:

interact with signal molecules that diffuse through the plasma membrane.

Explanation:

Nuclear receptors are responsible for recognizing steroids and other molecules. They interact with signal molecules that diffuse through the plasma membrane.

What are signal molecules?

Signal molecules are responsible for transmission of information. Different signaling molecules are of different size, shapes, confirmations, etc.

Its example include acetylcholine, dopamine, epinephrine, glycine, etc.

These molecules interacts with nuclear receptors and helps in signal transmission to and fro from the cell.

Thus, option d is correct.

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9. Find the value of x. Using that value, what is themeasurement of ZUTQ?thank you A previously healthy 15-year-old boy is brought to the emergency department in August 1 hour after the onset of headache, dizziness, nausea, and one episode of vomiting. His symptoms began during the first hour of full-contact football practice in full uniform. He reported feeling weak and faint but did not lose consciousness. He vomited once after drinking water. On arrival, he is diaphoretic. He is not oriented to person, place, or time. His temperature is 39.5C (103.1F), pulse is 120/min, respirations are 40/min, and blood pressure is 90/65 mm Hg. Examination, including neurologic examination, shows no other abnormalities. Which of the following is the most appropriate next step in management?(A) Obtain a CT scan of the head(B) Administer sodium chloride tablets(C) Administer intravenous fluids(D) Immerse the patient in an ice water bath(E) Obtain a lumbar puncture Which of the following statements regarding a partner's basis of inventory received in a liquidating distribution is True? A) Partners may either increase or decrease the basis in inventory distributed in a liquidating distribution. B) Partners may only increase the basis in inventory distributed in a liquidating distribution. C) Partners may only decrease the basis in inventory distributed in a liquidating distribution. D) None of these statements is True. In a certain state, license plates each consist of 2 letters followed by either 3 or 4 digits. How many differen license plates are there that have no repeated letters or digits? The term domestic violence refers to sexual, physical or verbal abuse of Which of the following is a rational function?F(x)=8x^2-21x+45F(x)= 3 root of X +17F(x)= 16xF(x)= 5x/x^2-25 ANYONE THERE!!! ANY GENIUSES! !WILL GIVE BRALIEST!!!! PLEASE HELP FOR THESE ARE MY LAST 2 QUESTIONS!!! AT LEAST TAKE A LOOK!!! EASY I AM JUST DUMB24. How did Jean Toomer reflect racial divisions in America in his poetry and prose poems?27. Which of these primary sources is most likely authentic?A) a direct quote used in a Wikimedia article about a historical eventB) a historical document stored on a website with an address ending in .govC) a speech described and quoted on an individual's political blogD) an advertisement that appears on a satirical website ending in .net At a birthday party, each child is given some chocolates. There are five 5-year-olds, five 6-year-olds and five 7-year-olds at the party. If each child receives three times as many chocolates as their age in years, how many chocolates are given out altogether? Given that is both the median and altitude of , congruence postulate SAS is used to prove that is what type of triangle?A.equilateralB.scalene obtuseC.isoscelesD.scalene acute Question 6 of 10Fill in the blank in the following sentence with the appropriate presentprogressive verb below.Toms"Don Quijote."A. estaba leyendoB. est leyendoC. leyendoD. lee Resolve into factors.a)x4-5x2y2+4y4 Which of the following is not a method of cell signaling?A. Short range message moleculesB. Direct contactC. HormonesD. Enzymes Where does one find the currulao? ________________________________. It is a community __________ where women and men ___________ and form ________________________________. What instruments are featured in this performance? Which of the following indicates a skill that must be mastered, or an ability that must be cultivated for normal and optimal development? Self-awareness A developmental taskA social smile Drag each tile to the correct box. Arrange the stages of the frogs life cycle from first to last. What guideline does the following question violate in terms of guidelines for writing questions: Do you agree or disagree that television increases people's tolerance for violence and drug use Jack deposited 200$ in his savings account in 1$ and 5$ bills. If he deposited 136 bills, how many 5$ bills did he deposit? which pens are better acyrlic or watercolor how many beats does a quarter note get? please help as soon as you can thank you Which sentence from "Island of Hope, Island of Tears" is written using a cause-and-effect text structure? Her brother placed a housework-wanted ad in a local paper, and Katherine was soon hired as a governess with a wealthy family. After a brief courtship, he and Vida Dixon married and sailed to the United States in 1923. His brother Salvatore followed in 1908 and their siblings Antonio, Maria Anna, and Angelina joined them in 1913. The Sicurella family typified the kinds of professions many Italian immigrants undertook once they came to America in the early 1900s.