Photosynthetic pigments are organized into cluster called photosystem. There are……types of photosystems.
a) two
b) three
c) four
d) five
Explanation: 1. Photosystem I and
2. Photosystem II
Each photosystem consists of several hundred pigment molecules including chlorophyll a and b along with……..
a) carotenoids
b) electron acceptors
c) bacteriochlorophyll
d) both a and b
There are …….parts of each photosystem.
a) two
b) three
c) four
d) five
Explanation: 1. Antenna complex and
2. Reaction center
Which of the following is present in the center of porphyrine ring of chlorophyll?
a) potassium
b) iron
c) magnesium
d) calcium
Which of the following is present in the center of porphyrine ring of haemoglubin?
a) potassium
b) iron
c) magnesium
d) calcium
The antenna complex of photosystem has many molecules of ……..
a) chlorophyll a
b) chlorophyll b
c) carotenoids
d) both b and c
Explanation: all absorb energy and transfer to the reaction center
