CHM-360 Quiz 1-2

CHM-360 Quiz 1-2

University

24 Qs

quiz-placeholder

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CHM-360 Quiz 1-2

CHM-360 Quiz 1-2

Assessment

Quiz

Biology

University

Easy

Created by

Edel Odowaay

Used 2+ times

FREE Resource

24 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

45 sec • 5 pts

If a reaction has a negative ΔG, it is:

a) Nonspontaneous and endergonic

b) Spontaneous and exergonic

c) Nonspontaneous and exothermic

d) Spontaneous and endergonic

2.

MULTIPLE CHOICE QUESTION

30 sec • 5 pts

Which of the following is NOT a type of work performed in living systems?

a) Osmotic

b) Chemical

c) Mechanical

d) Static

3.

MULTIPLE CHOICE QUESTION

45 sec • 5 pts

Which of the following best describes coupled reactions?

a) A reaction where energy is used up without any output.

b) A reaction where a non-spontaneous reaction is driven by a spontaneous one.

c) A reaction where two reactions occur independently.

d) A reaction that always results in heat production.

4.

MULTIPLE CHOICE QUESTION

45 sec • 5 pts

The molecule acting as the reducing agent in the following reaction is:

Glucose+ NAD+→ Pyruvate+ NADH

a) Glucose

b) NAD⁺

c) NADH

d) Pyruvate

5.

MULTIPLE CHOICE QUESTION

45 sec • 5 pts

In redox reactions, oxidation refers to:

a) Gaining electrons

b) Losing electrons

c) Increasing hydrogen atoms

d) Becoming more negatively charged

6.

MULTIPLE CHOICE QUESTION

45 sec • 5 pts

The Henderson-Hasselbalch equation is used to calculate:

a) The equilibrium constant of redox reactions

b) The solubility of a solute

c) The pH of a buffer solution

d) The standard free energy change

7.

MULTIPLE CHOICE QUESTION

1 min • 5 pts

If a buffer solution has a pKa of 6.4 and the ratio of conjugate base to acid is 10:1, the pH is:

a) 5.4

b) 6.4

c) 7.4

d) 8.4

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