Chlorophyll

Q.

Which metal is present in chlorophyll?

Q.

Which of these is/are called accessory pigment(s)?

1. Chlorophyll a

2. Chlorophyll b

3. Carotene

4. Xanthophyll

Q.

The organelle that contains chlorophyll is

1. vacuole
   

2. chloroplast

3. mitochodria

4. cell wall

Q. Which of the following pigment is most abundant in green plants?

1. Chlorophyll a
2. Chlorophyll b
3. Xanthophyll
4. Carotene

Q.

Which of the following statement(s) is/are true about chlorophyll?

1. Chlorophyll is known as the accessory pigment.

2. Chlorophyll molecules are found in the stroma of the chloroplast.

3. Chlorophyll molecules are the photosynthetic pigments in the thylakoid membrane.

4. Chlorophyll absorbs light in the red and blue range and reflects green light.

Q.

The pigment that appears yellow-green in the chromatogram is

1. Chlorophyll a

2. Xanthophyll

3. Chlorophyll b

4. Carotenoids

Q.

Leaves are green in colour due to the presence of which of these?

1. Minerals

2. Carotene

3. Chlorophyll

4. Xanthophyll

Q. What are grana? Explain.

Q.

Which of the following takes part directly in the process of photosynthesis and is NOT an accessory pigment?

1. Chlorophyll a

2. Chlorophyll b

3. Carotene

4. Xanthophyll

Q.

Choose the correct statement(s):

(i) Chlorophyll plays a major role in the process of photosynthesis.

(ii) Plants prepare food only from water.

1. Guard cells
   

2. Lenticels

3. Chlorophyll
   

4. Vacuole
   

Q.

_______ absorbs light and takes part in photosynthesis directly.

1. Xanthophyll

2. Chlorophyll b

3. Chlorophyll a

4. Carotene

Q.

The pigment called Chlorophyll present in Chloroplasts helps in photosynthesis by absorbing sunlight and transforming it into chemical energy.

1. False

2. True

Q. Which of the following element is component of chlorophyll?

1. Molybdenum
   
2. Copper
   
3. Zinc
   
4. Magnesium
   

Q.

Complete the following by filling in the blanks numbered (i-x) with appropriate word/term.

Thylakoids gets activated by absorbing light energy. This energy splits ________________.

Q.

How does plants make food?

Q.

Function of chlorophyll in photosynthesis is

1. Absorbing light energy

2. Breaking down of H₂O molecules

3. No Function

4. Reduction of CO₂

Q.

Photosynthesis occurs with the help of a chemical present in chloroplast called

1. Chlorophyll

2. Hemoglobin

3. None of the above

4. Melanin

Q. Which of the following is absent in polluted water : -

1. Hydrilla
2. Water hyacinth
3. Larva of stone fly
4. Blue green algae

Q. The green pigments that are capable of trapping sunlight energy are located in

1. Endoplasmic reticulum
2. Cell wall
3. Ribosome
4. Chloroplast

Q.

Why do plants appear green?