Significance of CAM Pathway

Q.

How is photosynthesis similar in C4 and CAM plants?

1. In both cases, only photosystem I is used.

2. Both types of plants make sugar without the Calvin cycle.

3. In both cases, rubisco is not used to fix carbon initially.

4. Both types of plants make most of their sugar in the dark.

Q. __

stomata open during night and remain closed during the day time

Q. When do the desert plants take up carbon dioxide & perform photosynthesis?

Q.

In the cactus, photosynthesis takes place in the stem.

1. True
2. False

Q.

In Nerium, stomata are ____.

Q.

In succulents like cacti, stomata close during the day. Why?

Q. Stomata without subsidiary cells are ___________.

1. Anomocytic
2. Anisocytic
3. Actinocytic
4. Cyclocytic

Q. In the process of photosynthesis, light energy is absorbed by

1. RuBP
2. oxygen molecule
3. $C{O}_2$
4. chlorophyll

Q. Which of the following sugar is prepared by the plant during photosynthesis?

1. Glucose
2. Lactose
3. Starch
4. None of the above

Q. On the basis of daily periodically, stomatal movements are of

1. Four types
2. Three types
3. Two types
4. Five types

Q. What will happen to the rate of photosynthesis in a plant under the following circumstance?
No rainfall in the area for a considerable time.

Q. With reference to factors affecting the rate of photosynthesis, which of the following statements is not correct.

1. Tomato is a greenhouse crop which can be grown in $C{O}_2$- enriched atmosphere for higher yield.
2. $C_3$ plants respond to higher temperatures with enhanced photosynthesis while $C_4$ plants have much lower temperature optimum.
3. Light saturation for $C{O}_2$ fixation occurs at $10\%$ of full sunlight.
4. Increasing atmospheric $C{O}_2$ concentration up to $0.05\%$ can enhance $C{O}_2$ fixation.

Q. Select the correct option:

1. Both A and B
2. Equifacial leaf
3. Bifacial leaf
4. Unifacial leaf

Q. CAM helps the plants in:

1. Reproduction
2. Conserving water
3. Secondary growth
4. Disease resistance

Q. dark reaction of photosynthesis is also called

Q.

How is photosynthesis similar in C4 and CAM plants?

1. In both cases, only photosystem I is used.

2. Both types of plants make sugar without the Calvin cycle.

3. In both cases, rubisco is not used to fix carbon initially.

4. Both types of plants make most of their sugar in the dark.

Q. Stomata tend to close during hot period and open during cooler hours in

1. Potato type
2. Barley type
3. Cereal type
4. Lucerne type

Q.

Cacti and many desert plants are _____ plants.

1. C3

2. CAM

3. C4

4. none of the above

Q. __

stomata open during night and remain closed during the day time

Q. In apple type of stomata

1. Stomata are present only on the upper surface of leaf
2. Stomata are present only on the lower surface of leaf
3. Stomata are present on both surface of leaf
4. Stomata are vestigial