Question 1
The image below shows a Senita cactus in a desert environment, which adaptation would be most effective for the survival of this plant?
- A) Increasing the number of stomata on leaves.
- B) Developing broad, thin leaves.
- C) Reducing the number of root hairs.
- D) Having a thick, waxy cuticle on leaves.
Question 2
Which factor plays a significant role in phloem transport, allowing the contents to flow from sources to sinks?
- A) Cohesion of organic compounds.
- B) Active transport of water.
- C) High hydrostatic pressure in the source.
- D) Osmotic pressure in the sink.
Question 3
In which part of the plant would you typically find stomatal apertures, and what is their function?
| Answer | Structure | Function |
|---|---|---|
| A | Xylem vessels | Organic compound storage |
| B | Roots | Transport of sugar |
| C | Leaves | Gas exchange |
| D | Phloem sieve tubes | Photosynthesis |
- A) A
- B) B
- C) C
- D) D
Question 4
Which property of water in the structure shown below allows for water transport under tension?
- A) Cohesion of water
- B) Evaporation
- C) Transpiration rates
- D) Active uptake of mineral ions
Question 5
Image below shows the structure of a stem. Identify the structure A and B.
| Answer | Structure A | Structure B |
|---|---|---|
| A | Stomata | Guard cells |
| B | Phloem | Xylem |
| C | Xylem | Phloem |
| D | Leaf | Roots |
- A) A
- B) B
- C) C
- D) D