Photosynthesis : MCQs for any board and medical exams

Here you are provided photosynthesis MCQs which are very important for any medical exams, you know well. We have included many questions appeared in different entrance exams. Remember “Practice does not make perfect, only perfect practice makes perfect.” After learning photosynthesis chapter from your books or get our theory course, then come here, work it out and grow in confidence for your exam.

#1. Bio-Chemical phase in photosynthesis was first discovered by

Amon

Calvin

Hill

Blackman

#2. Photosynthetic units are referred as

Fiparticles

Oxysome

Phycobilisome

Quantasome

#3. CAM-plants are mainly

Epihytes

Succulent xerophyte

Hydrophtytes

None of the above

#4. What is the role of light in plants ?

Controls growth & Movement

Controls distribution of hormones & flowering

All of the above

Necessary for photosynthesis

#5. How many calvin cycles would generate one molecules of glucose/hexose

Three cycles

Six cycles

One cycles

Twelve cycles

#6. In photosynthetic bacteria the photosynthesis takes place in

Chloroplast

Mesosomes

Chromatophores

Chromoplast

#7. How many molecules of water would be consumed to support one calvin cycles

One

Two

Six

Four

#8. Photosynthetic bacteria do not contain

Quantasome

PS - I

PS-II

PS- I or PS-II

#9. How much energy in terms of ATP equivalents is consumed in the photosynthetic production of a mole of hexose

36 ATP e

38 ATP e

54 ATP e

40 ATP e

#10. What is the by product of bacterial photosynthesis?

H₂O

O₂

H₂S

S

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