PrepBharat

1. Where does the primary photochemical reaction occur in chloroplast/Where does the light reaction of photosynthesis takes place?
a) Stroma
b) Edoplasmic reticulum
c) Quantasome or thylakoids (Grana)
d) Inner membrane of chloroplast

View Answer

2. The trapping centre of light energy in photosystem I is
a) P-660
b) P-680
c) P-700
d) P-720

View Answer

3. What indicates A to D in the given figure?

a) A–e– acceptor, B–Electron transport system, C–Chlorophyll P700, D–Light
b) A–Electron transport system, B–e– acceptor, C–Light, D–Chlorophyll P700
c) A–Chlorophyll P700, B–Electron transport system, C–Light, D–e– acceptor
d) A–Light, B–Electron transport system, C–e– acceptor, D–Chlorophyll P700

View Answer

4. Pigment system I conducts
a) Cyclic photophosphorylation
b) Non-cyclic photophosphorylation
c) Both (a) and (b)
d) None of theses

View Answer

5. Pigment system II is concerned with
a) Photolysis of water
b) Reduction of \[CO_{2}\]
c) Flowering
d) None of theses

View Answer

6. Photophosphorylation is a process in which
a) Light energy is converted into chemical energy in the form of ATP.
b) NADP is formed
c) Chemical energy is used to produce ATP
d) \[CO_{2}\] is reduced to carbohydrate

View Answer

7. The reaction centre for PS I and PS II are
a) \[P_{700}\]   and \[P_{680}\]   respectively
b) \[P_{680}\]   and \[P_{700}\]   respectively
c) \[P_{580}\]   and \[P_{700}\]   respectively
d) \[P_{700}\]   and \[P_{580}\]   respectively

View Answer

8. Results of light reaction is/are
a) Only ATP
b) Only \[ NADPH_{2}\]
c) ATP and \[ NADPH_{2}\]
d) Only FAD

View Answer

9. Biosynthetic phase of life uses all except _________ that is produced in photochemical phase.
a) ATP
b) NADPH
c) \[O_{2}\]
d) None of theses

View Answer

10. If light is available for a given duration and then again made unavailable, the biosynthetic process will
a) Continue for long duration
b) Continue for unlimited time
c) Continue for short duration
d) Will stop immediately

View Answer