Pigment of Leaf

Q.

Which pigment reflects green light and absorbs the other colors of light to provide energy for photosynthesis?

1. chloroplasts

2. thylakoids

3. none of these

4. chlorophyll

Q.

Chloroplasts are called energy converters. Explain

Q.

Leaves look green because of the presence of chlorophyll. Chlorophyll absorbs the sunlight for photosynthesis.

1. True

2. False

Q. In chloroplasts, chlorophyll is present in the _____.

1. outer membrane
2. inner membrane
3. thylakoids
4. stroma

Q.

Why does photosynthesis occur during the day time only????

Q. In chloroplasts, chlorophyll is present in the _____.

1. outer membrane
2. inner membrane
3. thylakoids
4. stroma

Q.

In chloroplasts, chlorophyll is present in the______

1. Outer membrane

2. Inner membrane

3. Thylakoids

4. Stroma

Q. Chlorophyll is located in the of chloroplast.

1. stroma
2. outer membrane
3. inner membrane
4. granum

Q. Chlorophyll molecules do not absorb blue and red wavelengths.

1. True
2. False

Q.

Both carotenoids and chlorophylls

1. are pigments

2. absorb photons of all energy ranges

3. contain porphyrin rings

4. all of the above

Q.

Solar energy is passed from one pigment to the other until it is concentrated into one particular ______ molecule, the reaction-center chlorophyll.

1. red carotenoid

2. yellow carotenoid

3. chlorophyll a

4. orange carotenoid

Q.

Which of the following pigments is yellow in colour?

1. Chlorophyll 'a’

2. Carotene

3. Xanthophylls

4. Chlorophyll ‘b’

Q.

Which among following pigments is essential for the sustenance of almost all life on earth?

1. Melanin.

2. Chloroplast.

3. Heme.

4. Chlorophyll.

Q. Chlorophyll is located in the_______ of chloroplast

1. inner membrane
2. granum
3. stroma
4. outer membrane

Q. Photosynthetic photosystem consists of?

1. Light harvesting Complex (LHC)
2. Reaction center
3. Both Reaction center and LHC
4. Reaction center, LHC and ETC (Electron transport chain)

Q.

During photosynthesis, photons raise electrons to higher energy levels. These excited electrons belong to what compound?

1. chlorophyll

2. ATP

3. H2O

4. RuBP

Q. There are two main types of chlorophylls: chlorophyll a and chlorophyll b.

1. True
2. False