Bio-energetic – Online MCQs Test – Biology MCAT

1. The oxygen that plants give of

comes from the light-dependent reactions of photosynthesis

comes from carbon dioxide that plants absorb

is a by-product of respiration

comes from the light-independent reaction of photosynthesis

2. One Calvin cycle uses how many CO₂ molecules:

3. Correct sequence of cytochromes involved in respiratory chain is.

a a3, b, c

b, c, a, a3

b, c, a3, a

a3, a, b, c

4. In chloroplasts, chlorophyll is present in the

Inner membrane

Thylakoids

Outer membrane

Strom

5. In respiration. ATP synthesis is called:

Oxidative phosphorylation

All of these

Cellular phosphorylation

Z-scheme

6. Pyruvate produced during glycolysis proceeds further in presence of oxygen through

Alcoholic fermentation

All of these

Aerobic respiration

Lactic acid fermentation

7. During Calvin cycle, how many G3P molecules are involved to regenerate three molecules of RuBP:

8. The so called “‘high energy” bonds of ATP are represented by:

First phosphate

Second and third phosphate

Third phosphate

Second phosphate

9. In glycolysis 2 PG is converted into PEP by:

Oxidation

Reduction

Dehydration

Hydration

10. It is 5-C compound produced during Krebs cycle:

Oxaloacetate

Succinate

Citrate

α-ketoglutarate

11. All of the following are products of non-cyclic photophosphorylation except.

ATP

NADPh

Oxygen

G3P

12. ATP molecule is used in all of the following except:

Assimilation

Osmosis

Nerve conduction

Muscular contraction

13. Total production of ATP during glycolysis from one glucose molecule is:

14. The high energy electrons from the reaction center of photosystem are trapped by:

Electron transport chain

Accessory pigments

Oxidized coenzyme

Primary electron acceptor

15. __________ generates more ATP as compared to ___________

Substrate ATP phosphorylation, chemiosmosis

Chemiosmosis, phosphorylation

Chemiosmosis, substrate ATP phosphorylation

Oxidative ATP phosphorylation, chemiosmosis

16. Chemical equation of photosynthesis is almost exactly opposite to the overall equation of:

Aerobic respiration

Respiration

Alcoholic fermentation

Lactic acid fermentation

17. Number of ATP generated when one molecule of NADH enters in respiratory chain is:

18. It is found in all photosynthetic organisms, EXCEPT photosynthetic bacteria:

Carotenoids

Bacteriochlorophyll

Chlorophyll – b

Chlorophyll – a

19. Glycolysis ________________

Requires oxygen

Produces water

Involves an electron transport chain

Is the breakdown of glucose to produce pyruvic acid

20. All of the following steps of photosynthesis involve direct use of light except:

Phosphorylation of ADP

Reduction of CO₂

Breakdown of water

Reduction of NADP

Bio-energetic-Medical College Admission Test Preparation Notes