How many polypeptide chains are shown in the tertiary protein structure in Model 3?
Answers
Answer:
3
Explanation:
Here, we are required to determine how many polypeptide chains are shown in the tertiary protein structure in Model 3 as shown in the picture attached.
The tertiary protein structure in Model 3 has 1 polypeptide chain/backbone.
Protein tertiary structure is simply defined the three dimensional shape of a protein. By convention, the tertiary structure (TS) of a protein will have a single polypeptide chain otherwise known as the polypeptide backbone with one or more protein secondary structures as the case may be. However, amino acid side chains may interact and bond in a variety of ways as evident in the diagram given.
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Related Questions
Damage to Schwann cells would result in Group of answer choices loss of the structural framework of the brain decreased speed of conduction ability to produce scar tissue at the site of an injury increased axoplasmic flow
Answers
Answer: decreased speed of conduction.
Explanation:
Schwann cells are type of cells of the peripheral nervous system that produce myelin sheath around neurosonal axons thereby increasing the saltatory function of neurons.
If Schwann cells are damaged it result in blockage of electric conduction which will produce secondary demeylination and resulting in shock or toxic immune shock.
Schwann cells produce myelin sheath will help to increase saltatory conduction but when it is damaged it will decrease conduction and result in shock.
Two dangers associated with the exposure of X-ray
Answers
Answer: Children are Especially Vulnerable to X-Ray Damage and Dental X-Rays Every Six Months, and Probably Every Year, May Cause More Harm Than Good
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.
Which explanation provides support for continental drift theory? O Dinosaurs lived on many continents. Coal fields match up across continents. Tropical plant fossils were found in warm areas. Similar rock types are found across continents.
Answers
Answer:
Similar rock types are found across continents
Explanation:
Can I have brainliest?
Similar composition of rocks are present across continents that support the theory of continental drift.
Similar rock types are found across continents is the evidence that support the continental drift theory because at the boundaries of two continent there must be similar type of rock present. Scientist Alfred Wegener presented Continental drift theory in the early 20th century.
Wegener noticed similarities between two continents when he pieced together maps of Africa and South America. He noticed that mountain ranges present on both continents line up to each other which means they are made of similar type of rock so we can conclude that similar types of rock are present across continents.
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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.
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
The cubes below are models of cells made of a jellylike material. One cube is
intact, and the other has been cut into eight smaller cubes
1 cm
1 cm
Which statement is true for these models?
O A. The smaller cubes have less total volume than the large cube.
B. There is more surface area with the one large cube than with the
eight smaller cubes,
C. There is more surface area with the eight smaller cubes than with
the one large cube.
D. The smaller cubes have more total volume than the large cube.
Answers
C. There is more surface area with the eight smaller cubes than with
the one large cube.
This applies to our body when we refer to cells , when there needs to be more surface for the same volume
Match each of the following brain structures with its description: _________.
a. Arachnoid mater:
b. Subarachnoid space:
c. Cerebral aqueduct:
d. Arachnoid villus:
e. Pia mater:
f. First and second ventricles:
g. Fourth ventricle:
h. Apertures:
i. Third ventricle:
j. Dura mater:
k. Interventricular foramina:
l. Superior sagittal sinus:
1. middle menninx.
2. located between the arachnoid mater and the pia mater.
3. connects third ventricle and fourth ventricle.
4. passageway for cerebrospinal fluid between fourth ventricle and subarachnoid space.
5. meninx that follows every convolution of brain.
6. lateral ventricles.
7. ventricle associated with the diencephalon.
8. structure that projects through dura mater into arachnoid mater.
9. ventricle located between brainstem and cerebellum.
10. outermost meninx.
11. connect the lateral ventricles and the third ventricle.
12. collects venous blood and cerebrospinal fluid.
Answers
Answer: Please see expalnation column for answer
Explanation:Matching the following brain structures with its description gives
1.Arachnoid mater – Middle meninx
2. Subarachnoid space - located between the arachnoid mater and the pia mater.
3. Cerebral aqueduct - connects third ventricle and fourth ventricle.
4.Arachnoid villus -structure that projects through the dura mater into arachnoid mater
5. Pia mater - Meninx that follows every convolution of the brain.
6. First and second ventricles – Lateral Ventricles
7. Fourth ventricle - ventricle located between brainstem and cerebellum.
8. Apertures - passageway for cerebrospinal fluid between fourth ventricles and subarachnoid space
9.Third ventricle - ventricle associated with diencephalon.
10. Dura mater – Outermost meninx
11. Interventricular foramina - Connects the lateral ventricle and third ventricle
12. Superior sagittal sinus - Collects venous blood and cerebrospinal fluid.
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
What do neurotransmitters do? A. Cause the pre-synaptic neuron to open voltage-gated gates. B. Diffuse across the synaptic cleft and bind to specific receptor sites on the post-synaptic cell. C. Cause calcium to diffuse across the synaptic cleft and bind to specific receptor sites on the post-synaptic cell. D. Diffuse synaptic vesicles which releases molecules into the synaptic cleft.
Answers
Answer:
D. Diffuse synaptic vesicles which releases molecules into the synaptic cleft.
Explanation:
Hope it helps.
Answer:
B.
Explanation:
Diffuse across the synaptic cleft and bind to specific receptor sites on the post-synaptic cell.
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 northern Canada, a population of rabbits was predominantly white in color. The allele for white color is recessive while the allele for gray color is dominant. Over the last several decades, the average annual temperature of this area has increased and the long-term deposits of ice and snow have become scarce. In this case, the frequency of a previously rare allele becomes more frequent in the population. This is an example of
Answers
Answer:
The options are
A) nonrandom selection.
B) disruptive selection.
C) directional selection.
D) stabilizing selection.
The answer is C)directional selection.
Explanation:
Directional selection is a type of natural selection and occurrence in population genetics. It involves a phenotype which is most extreme being chosen over forms of phenotypes. It occurs over a period of time when the allele frequency completely aligns in the pattern of the extreme phenotype.
This explains why the frequency of a previously rare allele becomes more frequent in the population after a certain period of time.
Write down name and action of enzymes in small intestine
Answers
Answer:
The names of the digestive enzymes are lipases, proteases and peptidases, and amylases.
Explanation:
The function of the lipases is to split fatty acids off of fats and oils. The function of the proteases and peptidases is to split proteins into small peptides and amino acids. The function of the amylases is to split carbohydrates, such as starch and sugars, into simple sugars, like glucose.
what is the shape of of the masular cell?
a.brached
b.spindle shaped
Answers
Answer:
a. branched- cardiac muscle cells
b. spindle shaped- smooth muscle cells
Explanation:
Muscle cells are termed as myocytes. These are the cells that are made up of muscle tissues. These cells help in the movement and locomotion of the body.
In the human body, there are three types of muscle cells, skeletal, cardiac, and smooth. The skeletal muscle cells are cylindrical in shape. The cardiac muscle cells are rectangular in shape and have branching fibers. The smooth muscle cells are spindle-shaped.
Gregor mendel concluyo que cada guisante tiene dos unidades para cada rasgo y cada gameto cotiene una unidad . Las unidades de mendel se conocen ahora como
Answers
Answer:
Las unidades de Mendel se conocen ahora como GENES
Explanation:
Durante sus experimentos, Mendel demostró que las características de las plantas de guisante (por ejemplo color de la flor, color de la semilla, forma de la semilla, altura de la planta, etcétera) eran heredadas, y denominó "elementos" a las unidades portadoras de dichas características. Es decir que cada elemento o unidad discreta, era el responsable de que la planta exprese una u otra característica. Estableció que estos elementos se redistribuían independientemente uno de otro, generación tras generación. Con el paso del tiempo y el avance de las investigaciones, estas unidades o elementos fueron denominados Genes.
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
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.
More on DNA base pairing can be found here: https://brainly.com/question/19670411
DNA is the genetic material that makes up living things, and folic acid plays an important role in the formation of DNA. Jon wants to study the effect of folic acid on DNA formation in microbes. Which statement accurately describe the variables in this study? A. The amount of folic acid and DNA synthesized are both dependent variables. B. The amount of folic acid and DNA synthesized are both independent variables. C. The amount of folic acid is the independent variable, and the DNA synthesized is the dependent variable. D. The amount of folic acid is the dependent variable, and the DNA synthesized is the independent variable. E. The amount of folic acid and DNA synthesized are neither dependent nor independent variables.
Answers
Answer:
The correct answer is - C. The amount of folic acid is the independent variable, and the DNA synthesized is the dependent variable.
Explanation:
DNA is the genetic material of most of the living organisms. In this question, Joe wants to study to see the effect of folic acid on the synthesis of the DNA. Folic acid ae the essential nutrients or vitamin for the synthesis of nitrogen bases of the DNA that are purines and pyrimidines. A dependent variable and an independent variable are two important part of any experiment.
A dependent variable is a variable being tested and measured. In the experiment Jon is conducting, the amount of DNA becomes a dependent variable that is being tested and measured in the presence of folic acid. And folic acid is the independent variable tested to check the formation of DNA in bacteria.
Thus, the correct answer is - C. The amount of folic acid is the independent variable, and the DNA synthesized is the dependent variable.
Answer:
The amount of folic acid is the independent variable, and the DNA synthesized is the dependent variable.
Explanation:
Edmentum
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:
What is the main function of carbohydrates?
O A. Storing genetic information
B. Storing energy
C. Forming a cell's structure
D. Providing a layer of insulation
Answers
The main function of carbohydrates is:
B. Storing energy
The main function of carbohydrates is to store energy. Thus, the correct option for this question is B.
What is Carbohydrate?Carbohydrates may be characterized as an important class of macronutrients that contains an organic compound such as sugar or starch. These macronutrients play a specific role in the storage of energy.
The storage of genetic information is facilitated by the DNA which is manufactured with the help of nucleotides. A cell is formed or repaired with the help of proteins which are derived from sequences of amino acids.
Like most organic compounds, carbohydrates are built of small, repeating units that form bonds with each other to make a larger molecule. In the case of carbohydrates, the small repeating units are called monosaccharides.
Therefore, the main function of carbohydrates is to store energy. Thus, the correct option for this question is B.
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describe the three stages of germination
Answers
Answer:
Germination is the process by which the seed embryo begins growth. A seed is considered to have germinated when the embryonic root emerges from the seed coat. ... Three major stages in the germination process are the imbibition of water, increased metabolic activity, and swelling of cells.
Answer:
The three stages in the germination are the imbibition of water, increased metabolic activity, and swelling of cells.
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
At a neuromuscular junction Group of answer choices neurotransmitters are released. actin and myosin filaments slide past one another. intercalated discs are synthesized. troponin and tropomyosin exchange places.
Answers
Answer:
Neurotransmitters are released
Explanation:
At a neuromuscular junction, action potential that arrives there causes the release of the acetylcholine into the synapse. This then binds to the receptors that span across the surface of the motor end plate triggering muscle contraction with the release of calcium.
It acts as a transmission passageway for action potential between the end of a motor nerve and a muscle.
brainliest All of the following are considered stress hormones except __________. A. epinephrine B. cortisol C. norepinephrine D. estrogen
Answers
Hey There!!
Your answer will be D. Estrogen.
Good Luck <3!!
By ♡Itsbrazts♡
Answer:
Hey!
Estrogen is your answer!
Explanation:
It is the Female developmental Hormone...
Hope This Helps!!
:>
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
1
2
3
6
8
Which is developed during the process of technological design?
solution
experiment
conclusion
summary
Answers
During the technological design process, you would develop a solution
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:
Question 6: What is the average number of staghorn corals within this time frame?
Answers
Answer:
14 percent
Explanation:
Answer:
14 %
Explanation:
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 is the function of a chloroplast?
O A. Gamete production
O B. Photosynthesis
O C. Fermentation
O D. Cellular respiration
Answers
Answer:
photosynthesis
Explanation:
Chloroplasts are found in plant cells its function is the process by which energy from the Sun is converted into chemical energy for growth. Also called photosynthesis.
Answer:
Photosynthesis
Explanation:
Chloroplast contains chlorophyll which absorbs sunlight and let photosynthesis happen.