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Cellular Respiration Part I

Total questions: 13

Worksheet time: 13mins

Name
Class
Date
1.

What is another name for cellular respiration?

a)

aerobic respiration

b)

metabolic respiration

c)

breathing cells

d)

glycolysis

2.

Glycolysis is the first pathway of what?

a)

cytoplasm pyruvates

b)

anaerobic respiration

c)

oxidative phosphorylation

d)

aerobic respiration

3.

Complete the sentence:

Glycolysis occurs in the

a)

cytoplasm and is aerobic

b)

cytoplasm and is anaerobic

c)

Pyruvate and is aerobic

d)

Mitochondrion and requires no O2

4.

In the glycolysis pathway, one glucose molecule can yield

a)

1 ATP molecules requiring 8 enzymes

b)

2 ATP molecules requiring 10 enzymes

c)

3 ATP molecules requiring 7 enzymes

d)

4 ATP molecules requiring 12 enzymes

5.

Dihydroxyacetone phosphate (DHAP) is converted into Glyceraldehyde-3-phosphate (GADP or G3P) by what enzyme?

a)

enolase

b)

glyceraldehyde phosphate dehydrogenase

c)

diosephosphate isomerase

d)

triosephosphate isomerase

6.

How many steps are involved in Glycolysis?

a)

5

b)

8

c)

10

d)

12

7.

Glucose in the cytoplasm of the cell is converted into pyruvate.

a)

True

b)

False

8.

Aerobic respiration occurs in

a)

cytoplasm

b)

lysosome

c)

mitochondrion

d)

mandalorian

9.

Glucose enter the mitochondrial matrix

a)

True

b)

False

10.

Pyruvate decarboxylates and oxidizes to form acetyl-CoA

a)

True

b)

False

11.

The citric acid cycle (aka Krebs cycle or tricarboxylic acid cycle) is

a)

an 8-step pathway requiring 8 enzymes

b)

a 10-step pathway requiring 10 enzymes

c)

a 6-step pathway requiring 6 enzymes

d)

a 12-step pathway requiring 12 enzymes

12.

What is the enzyme used in the first step of the citric acid cycle?

a)

Aconitase

b)

fumarase

c)

citrate synthase

d)

isocitrate dehydrogenase

13.

Which of these pathways generates the most ATP?

a)

glycolysis

b)

citric acid cycle

c)

oxidative phosphorylation

d)

all are the same