Question 4 (1 point) Choose all of the following characteristics that apply to f

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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

1)

tend to aggregate in water

2)

can form a barrier separating aqueous compartments

3)

include insulin

4)

has polymer structure

5)

can be amphipathic

Explanation / Answer

4. Characteristic aplicable to fats.

Can form a barrier seperating aqeous compartments.

Is a polymer of fatty acids

Are amphipathic

5. Carbohydrates characteristic

Polymer is glycogen

Broken down in liver cells in response to glucagon.

6. Nucleic acids characteristic

Are polymers of nucleotide

Form stable interaction between identical molecules

Can determine the order of amino acids of a protein

Have sugar in subunit

7. Protein characteristic

Polumer of amino acids

Order of amino acid determines folded structure

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