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Oxidative Phosphorylation

Total questions: 9

Worksheet time: 5mins

Name
Class
Date
1.

How does the electron transport chain facilitate the synthesis of ATP?

a)

The ATP is synthesized by the ATP synthase found in the electron transport chain

b)

The ATP synthesized at the end of the electron transport chain

c)

The ATP is synthesized by the protons combing with the oxygen in the electron transport chain

d)

The ATP is synthesized by the protons flowing down their concentration gradient after being pumped out by the ETC

2.

How many ATPs are synthesized from the energy carried by NADH and FADH2 (on average)?

a)

1 NADH = 2 ATP; 1 FADH2 = 1 ATP

b)

1 NADH = 2 ATP;  1 FADH2 = 3 ATP

c)

1 NADH = 1 ATP; 1 FADH2 = 1 ATP

d)

1 NADH = 3 ATP;  1 FADH2 = 2 ATP

3.

Which part of the cell will have the highest pH due to cellular respiration?

a)

Intermembrane space

b)

Matrix

c)

Cytosol

d)

Thylakoid

4.

Which direction are protons pumped during the electron transport chain?

a)

Into the Thylakoid

b)

Into the intermembrane space

c)

Into the cytosol

d)

Into the mitochondrial matrix

5.

Where does the NADH and/or FADH2 that is brought to the ETC come from ?

a)

Glycolysis

b)

Krebs Cycle

c)

Cytoplasmic Reactions

d)

Pyruvate Oxidation

6.

Describe what would happen if the mitochondrial inner membrane was ruptured.

a)

ATP synthesis would be inhibited

b)

ATP synthesis would be promoted

c)

The ETC would decrease in activity

d)

The ETC would increase in activity

7.

What are the two parts of oxidative phosphorylation?

a)

Krebs Cycle

b)

Glycolysis

c)

Chemiosmosis

d)

ETC

8.

Where does oxidative phosphorylation take place?

a)

Matrix

b)

Cristae

c)

Chloroplast

d)

Cytosol

9.

Where would you find the electron transport chain in a plant cell?

a)

Endoplasmic reticulum

b)

Thylakoid membrane

c)

Mitochondrial cristae

d)

Prokaryotic plasma membrane

e)

Golgi Bodies