Complex II

Q.

The ultimate electron acceptor of respiration in aerobic organisms is

1. Hydrogen

2. Glucose

3. Cytochrome

4. Oxygen

Q.

The terminal cytochrome of the respiratory chain which donates electrons to oxygen is

1. Cyt C

2. Cyt b

3. Cyt a3

4. Cyt a

Q.

What is the function of the electrons in the electron transport chain?

Q.

What is succinate dehydrogenase also known as?

Q.

Regarding assertion and reason, choose the correct option.

Assertion [A]: The affinity of hemoglobin for oxygen is dependent on the partial pressure of oxygen.

Reason [R]: Hemoglobin has a low affinity for oxygen.

1. Assertion [A] is True and Reason [R] is True and is a correct explanation to [A].

2. Assertion [A] is True and Reason [R] is True but is not a correct explanation to [A].

3. Assertion [A] is True and Reason [R] is False.

4. Reason [R] is True and Assertion [A] is False

Q. Which among the following enzymes is common for both Krebs cycle and electron transport chain?

1. Citrate dehydrogenase
2. Malate dehydrogenase
3. Fumarate dehydrogenase
4. Succinate dehydrogenase

Q. During electron transport, protons are pumped out of the mitochondrion at each of the major sites except for:

1. Complex I
2. Complex II
3. Complex III
4. Complex IV

Q.

Choose a site along the electron transport chain out of the following that is not coupled to ATP synthesis.

1. Complex I

2. Complex II

3. Complex III

4. Complex IV