Bio-energetic – Online MCQs Test – Biology MCAT

1. The quantitative study of energy relationships in biological system is called:

Photosynthesis

Bioenergetics

Metabolism

Respiration

2. It acts both as reactant and product of photosynthesis:

Carbon dioxide

Oxygen

Carbohydrate

Water

3. The total energy yield from glucose metabolism is:

36 ATPs

4 ATPs

36 to 38 ATPs

24 ATPs

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

Muscular contraction

Nerve conduction

Assimilation

Osmosis

5. Final acceptor of electrons in respiratory chain is:

Cytochrome a3

ATP

Oxygen

Co-enzyme Q

6. In respiration. ATP synthesis is called:

Z-scheme

Cellular phosphorylation

Oxidative phosphorylation

All of these

7. All of the following are iron containing electron carriers except:

Ferridoxin

Plastocyanin

Cytochrome

Plastoquinone

8. All of the following are correct about cell respiration EXCEPT

It is an oxidative process

It consists of glycolysis, Kreb’s cycle, and the electron transport chair

All plant and animal cells carry out respiration all the time

Oxygen molecules are pumped across the cristae membrane to the outer compartment

9. Synthesis of ATP in the presence of oxygen is called:

Aerobic respiration

Chemiosmosis

Oxidative phosphorylation

Photophosphorylation

10. A process of ATP generation in chloroplasts and mitochondria refers to:

Kreb’s cycle

Ferrnentation

Glycolysis

Chemiosmosis

11. The role of oxygen in aerobic respiration is

To transport electrons in glycolysis

Most important in the Krebs cycle

To transport CO₂

As the final proton and electron acceptor in the electron transportchain

12. The loss of electrons is known as

Reduction

redox

oxidation

electron transport chain

13. In chloroplasts, chlorophyll is present in the

Inner membrane

Outer membrane

Thylakoids

Strom

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

15. All of the following statements about photolysis are correct EXCEPT

it provides hydrogen for carbon fixation

it occurs during the light-independent reaction

it releases oxygen

it supplies electrons to chlorophyll a

16. How many CO₂ molecules are released when 1 molecule of glucose is completely in aerobic respiration?

17. Lactic acid fermentation occurs in:

Plant cells

Animal cells

Yeast cells

Fungal cells

18. The enzyme RuBP helps in the capturing of

CO₂

AII of them

Hydrogen

O₂

19. The stroma of chloroplast contains most of the enzymes to produce:

Carbon dioxide

Nucleic acids

ATP

Carbohydrates

20. Glycolysis literally means splitting of:

Sugar

Carbohydrates

Sucrose

Glucose

Bio-energetic-Medical College Admission Test Preparation Notes