Biology 11 chapter 4
Bioenergetics - 5
1.
The cluster of pigments in plants is known as ___?
a) photosystem
b) nervous system
c) photosynthesis
d) respiratory system
2.
The pigments in the photosystem act as antenna and are responsible
for gathering ____?
a) solar energy
b) wind energy
c) chemical energy
d) heat energy
3.
There are total ___ kinds of potosystems.
a) 5
b) 3
c) 4
d) 2
4.
The absorption peaks of both the photosystems are of ___ light?
a) yellow
b) green
c) violet
d) red
5.
Photosystem I (PS I) is also known as ___?
a) P560
b) P680
c) P700
d) P390
6.
Land plants take carbon from ___ during photosynthesis?
a) bicarbonates
b) atmospheric CO2
c) CO2 dissolved in water
d) carbonates
7.
The role of carbon dioxide in photosynthesis is?
a) it is released as by product
b) it gives oxygen to the atmosphere
c) it produce energy
d) it provides carbon to organic compound
8.
According to Van Neil, oxygen comes to the atmospher from ___
during photosynthesis?
a) water
b) bicarbonates
c) carbonates
d) carbon dioxide
9.
The breakdown of water molecule by means of light is called as ___?
a) condensation
b) photolysis
c) chemiosmosis
d) hydrolysis
10.
Light reaction of photosynthesis takes place in the ___ of chloroplast?
a) grana
b) envelope
c) stroma
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