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Worksheets

BIOENERGETICS

Total questions: 15

Worksheet time: 8mins

Name
Class
Date
1.

Which one of the following reactions involves NAD/NADH?

a)

hydration

b)

dehydration

c)

decarboxylation reaction

d)

oxidative hydrogenation of Lactate

2.

What is another name for glycolysis?

a)

citric acid cycle

b)

pyruvate

c)

fermentation

d)

exergonic reaction

3.

What is the only molecule that can start the Krebs Cycle?

a)

Citrate

b)

Lactate

c)

Pyruvate

d)

Acetyl CoA

4.

What are the 2 electron carriers in the krebs cycle?

a)

FADH2 and NADH

b)

NADH and H+

c)

CO2 and GTP

d)

FAD and FADH2

5.

Which of the following statements regarding inborn errors of metabolism is FALSE?

a)

Often autosomal recessive in inheritance.

b)

Treatment strategy often includes providing patients with the substrate of the deficient enzyme.

c)

Often results in non-specific symptoms.

d)

Accumulation of toxic compounds often contributes to the pathogenesis.

6.

the TCAC, also known as the?

a)

Krebs cycle

b)

mitochondrial diseases

c)

Citrate synthase

d)

Fumarase

7.

Who is the Krebs cycle named after?

a)

Hance krebs

b)

Hans krebs

c)

George krebs

d)

Paul krebs

8.

Where does the Krebs Cycle take place?

a)

Inner membrane of Mitochondria

b)

Cytoplasm

c)

Mitochondrial Matrix

d)

Cytosol

9.

TCAC diseases, especially of specific enzyme deficiency, often leads to one of the following clinical manifestations.

a)

Hypertonia

b)

Encephalitis

c)

Hyperopia

d)

Encephalopathy

10.

What does "decarboxylation" indicate?

a)

Removal of CO2

b)

Gain of CO2

c)

Removal of Electrons

d)

Gain of electrons

11.

Krebs cycle is?

a)

reductive

b)

Catabolic

c)

Anabolic

d)

Anaerobic

12.

which of the following can be a clinical manifestation of TCAC Enzyme deficiency?

I. Hypotonia

II. Encephalopathy

III. hypotrophic cardiomyopathy

IV. neurodegenration

a)

II, III

b)

II, IV

c)

II, III, IV

d)

I, II, IV

13.

Which of the following enzymes participates into the Krebs Cycle?

a)

Fumarate

b)

Succinyl CoA

c)

Fumarase

d)

Malate

14.

Which of the following is/are product/s of the krebs cycle for one glucose molecule entering the Krebs cycle?

a)

4 molecules of NADH

b)

2 molecules of FADH2

c)

1 molecule of Carbon

d)

2 molecules of ATP

15.

What is TCA disease?

a)

a group of rare human diseases that affect core mitochondrial metabolism.

b)

Cancer

c)

A particular distinctive process in the body with a specific cause and characteristic symptoms

d)

A few symptoms occurring together and characterizing a specific disease.