Question 1 (1 point) Which of the following is a type of bond that holds the ato

Question

Question 1 (1 point)

Which of the following is a type of bond that holds the atoms of a molecule together

Question 1 options:

weak

hydrophobic

hydrogen

covalent

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Question 2 (1 point)

Match the description to the most likely type of biomolecule.

Question 2 options:

1234

is released from pancreas as part of the reflex response loop to high blood glucose concentration

1234

is predominantly non-polar

1234

cell surface receptor for insulin

1234

is not a polymer

1234

includes ATP

1234

breaks down to amino acids

carbohydrate

protein

nucleic acids

fats

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Question 3 (1 point)

Choose all of the following that are characteristics of non-polar molecules.

Question 3 options:

aggregates in water

composed mostly of hydrocarbon

is hydrophilic

has the properties of glucose

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Question 4 (1 point)

Choose all of the following characteristics that apply to fats

Question 4 options:

tend to aggregate in water

can form a barrier separating aqueous compartments

include insulin

has polymer structure

can be amphipathic

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Question 5 (1 point)

Choose all of the following that are characteristics of carbohydrates

Question 5 options:

are expected to aggregate in water

polymer is glycogen

subunits are nucleotides

formed in muscle cells in response to glucagon

broken down in liver cells stimulated by glucagon

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Question 6 (1 point)

Choose all of the following that are characteristics of nucleic acids

Question 6 options:

are polymers of nucleotides

form stable interactions between identical molecules

can determine the order of amino acids of a protein

are composed of sugar subunits

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Question 7 (1 point)

Choose all of the following that are characteristics of a protein

Question 7 options:

is a polymer of amino acids

functions only as a properly folded structure

order of amino acids determines folded form of structure

bind ligand mainly by covalent bonds

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Question 8 (1 point)

Choose all of the following that are characterstics of a given enzyme

Question 8 options:

an enzyme increases rate of a chemical reaction

all proteins are enzymes

an enzyme binds substrate and releases product

an enzyme is typically a protein

a typical enzyme can catalyze any reaction

interactions between enzyme and substrate are weak

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Question 9 (1 point)

Choose all of the following that correctly characterize the interaction of a protein with a ligand

Question 9 options:

the ligand binds to a specific 3D structure of the protein

is independent of the shape of the ligand

stability depends on the number of weak interactions

a ligand binds stably to any protein binding site

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Question 10 (1 point)

Choose all of the following that are characteristics of weak interactions

Question 10 options:

weak interactions form biological membranes

weak interaction occur between the subunits of the glycogen molecule

multiple weak interactions are required for stable interaction between a protein and its ligand

each weak interaction between strands of DNA is stable

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Question 11 (1 point)

A glucose A1C test shows that person X has an average blood glucose of 100 mg/dl. A response to hyperglycemia is triggered by blood glucose of 120 mg/dl. A hypoglycemic response is triggered by 80 mg/dl. Which of the following are consistent with the homeostasis of blood glucose with respect to person X.

Question 11 options:

both alpha and beta cells of pancreas secrete hormone when blood glucose is above 120 mg/dl

100 mg/dl glucose causes alpha cells of the pancreas to secrete glucagon

100 mg/dl is the equilibrium concentration of blood glucose

100 mg/dl is the set point for reflex response

during a period of time in which blood glucose goes from 70 mg/dl to 140 mg/dl, hormone release by both alpha and beta cells of the pancreas change

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1)

weak

2)

hydrophobic

3)

hydrogen

4)

covalent

Explanation / Answer

Question 1 (1 point)
Which of the following is a type of bond that holds the atoms of a molecule together - The answer is 4) covalent

Because the rest all are the physical attractions.

Question 2 (1 point)
is released from pancreas as part of the reflex response loop to high blood glucose concentration -

The answer is 2. protein - Insulin is the answer as the insulin is polypeptide, here the answer is protein.

is predominantly non-polar
The answer is 4. = fats

cell surface receptor for insulin
The answer is 1.carbohydrate

is not a polymer
The answer is 4.fats

includes ATP
The answer is 3.nucleic acids

breaks down to amino acids
The answer is 2.protein

Question 3
Choose all of the following that are characteristics of non-polar molecules.
The answers are
1) aggregates in water and
2) composed mostly of hydrocarbon

ACCORDING TO CHEGG GUIDELINES WE HAVE TO ANSWER ONE QUESTION AT A TIME. POST THE REST AS SPERATE QUESTIONS, THEN I CAN HELP YOU.

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