You are studying a particular reaction under conditions in which the ?G = 12 kJ/

Question

You are studying a particular reaction under conditions in which the ?G = 12 kJ/mol. Which of the following statements is true?

A.) The reaction is energetically favorable and will occur spontaneously.

B.) The reaction is not energetically favorable and will require an enzyme to occur.

C.) The reaction is not energetically favorable and will not occur in this case.

D.) The reaction is at a dynamic equilibrium between the forward and reverse processes.

E.) The rate of the reaction is very slow.

HINT: Answer is either C or E

Phosphate groups on the backbone of DNA are negatively charged at neutral pH. Proteins that interact with DNA are often enriched in which amino acid?

A.) D

B.) Y

C.) R

D.) L

E.) W

HINT: Must know single letter appreviations for amino acids. A and B are inncorect.

Which of the following amino acids is the most likely to be on the surface of a folded protein?

A.) L

B.) G

C.) M

D.) N

E.) W

HINT: Must know single letter abreviations for amino acids. B is inncorect.

Which of the following components of a cell does not belong on this list?

A.) Polysaccharides

B.) Polypeptides

C.) Nucleic acids

D.) Membranes

E.) Glucose

HINT: A is inncorect.

Explanation / Answer

1. E - the rate of reaction is very slow as the reaction is reactant favorable. It will require energy to proceed.

2. R

3. L

4. D ( since all are present in cell, as the question has not specifically asked on what basis so I have assumed according to single and complex forms. As all others are single structure components but membrane is a complex structure.

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