Bio-energetic – Online MCQs Test – Biology MCAT

1. When oxygen combines with electrons and hydrogen ions at the end of the electron transport chain_________ is produced.

Anabolic water

Metabolic water

Oxygenated water

Protonated water

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

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

It is an oxidative process

All plant and animal cells carry out respiration all the time

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

3. One Calvin cycle uses how many CO₂ molecules:

4. The loss of electrons is known as

electron transport chain

oxidation

redox

Reduction

5. During photosynthesis. Light energy is captured by

Strom

Reaction centre

Antenna complex

Thylakoid membranes

6. Photosynthesis consists of two well-defined phases, which are

Biochemical phase and cellular phase

Chemical phase and photochemical phase

Light phase and dark phase

Oxygenated phase and deoxygenated phase

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

α-ketoglutarate

Citrate

Oxaloacetate

Succinate

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

NADPh

Oxygen

G3P

ATP

9. The oxygen that plants give of

is a by-product of respiration

comes from the light-independent reaction of photosynthesis

comes from carbon dioxide that plants absorb

comes from the light-dependent reactions of photosynthesis

10. Which is a wasteful phenomenon?

Photosynthesis

Photorespiration

None of these

Respiration

11. In which processes, ATP is used as a raw material?

In reduction of carbon dioxide during dark reaction of photosynthesis

In activation of t-RNA

All of these

In replication and transcription of RNA

12. Chlorophylls absorb mostly violet-blue wavelengths ________ and red wavelength _______ respectively:

670 – 700nm, 500 – 600nm

670 – 700nm, 390 – 430nm

390 – 430nm, 500 – 600nm

390 – 430nm, 670 – 700nm

13. NAUP and CO₂ both are reduced during photosynthesis by Hydrogen. Their reduction occurs respectively in:

Light reactions only

Dark reaction and light reaction

Dark reactions only

Light reaction and dark reaction

14. The first action spectrum was obtained by a:

French biologist

English biologist

German biologist

Spanish biologist

15. The step/s of glycolysis that consume/s ATP/s, is/are:

1st and 3rd steps

3rd step

1st step

2nd step

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

Alcoholic fermentation

Lactic acid fermentation

Aerobic respiration

All of these

17. The output of a single Calvin cycle is a:

Sugar

Vitamin

Lipid

Protein

18. Calvin cycle is also known as C₃ pathway because:

It completes in three steps

Initial stable product is 3-C compound

Output is 3-C compound

It fixes three molecules of CO₂

19. When equal Contrary to non-cyclic electron flow, the cyclic electron flow lacks following things, EXCEPT:

Photophosphorylation

NADP reductase

Photolysis of water

Photosystem II

20. Which of the following is not a photosynthetic pigment”

Bromothymol blue

Carotenoid

Chlorophyll a

Chlorophyll

Bio-energetic-Medical College Admission Test Preparation Notes