Structure of Chloroplast

Q. All plastids carry the green coloured pigment.

1. True
2. False

Q. Name the flattened sac like structures present in the interior of the chloroplasts. What is the colourless substance in which these flattened sacs are present?

1. thylakoids, grana
2. grana, thylakoids
3. thylakoids, stroma
4. grana, stroma

Q. Plastids that are white in colour (pigment-free) are known as _____.

1. chromoplast
2. lysosome
3. leucoplast
4. chloroplast

Q.

Choose the correct option regarding the structure of chloroplast based on the statments given.

Statement 1: The fluid part of the chloroplast is the stroma lamellae.

Statement 2: The membranous sacs arranged one above the other form the grana.

Statement 3: The membrane bound structures joining the grana are the stroma.

1. (2) and (3) are incorrect, (1) is correct

2. (1) and (3) are incorrect, (2) is correct

3. (1) and (3) are correct, (2) is incorrect

4. (1) and (2) are correct, (3) is incorrect

Q. Which cell organelle contains a green coloured pigment for photosynthesis?

1. Mitochondria
2. Ribosomes
3. Plastids
4. Lysosomes

Q.

Which of the following plays a major role in trapping sunlight?

1. Chlorophyll

2. Stomata

3. Epithelial cells

4. Mitochondria

Q. Leaves appear green due to the presence of ______.

1. sunlight
2. chlorophyll
3. carbon dioxide
4. nutrients

Q. Select the wrong statement from the following

1. Both chloroplasts and mitochondria contain an inner and outer membrane
2. Both chloroplasts and mitochondria have an internal compartment, the thlakoid space bounded by the thylakoid membrane.
3. Both chloroplasts and mitochondria contain DNA
4. The chloroplasts are generally much larger than the mitochondria.

Q.

Which of the following are plastids?

1. Mucoplast and Neuroplast

2. Chloroplast and Leucoplast

3. Mucoplast and Chloroplast

4. Leucoplast and Neuroplast

Q. Leucoplasts are

1. Red pigment
2. Brown pigment
3. Colourless pigment
4. Green pigment