1. Name 2 adaptations in leaves have for photosynthesis. 2. What do leaves have on their lower surfaces? 3. Where most of the photosynthesis does takes place in the leaves? 4. What is the function of a vein in leaves? 5. What is the function of the upper and the lower epidermis?

Đáp án:

1. 

+ The chloroplasts contain many chlorophyll

+ The leaves have many stomata that help exchange CO2

2. A waxy layer known as the cuticle covers the leaves of all plant species.

3. Chloroplasts

4. The xylem transports water and minerals to the leaves; the phloem transports the photosynthetic products to the other parts of the plant.

5. The epidermis consists of the upper and lower epidermis; it aids in the regulation of gas exchange via stomata; prevent transpiration

Giải thích các bước giải:

+ The chloroplasts contain many chlorophyll

+ The leaves have many stomata that help exchange CO2

2. A waxy layer known as the cuticle covers the leaves of all plant species.

3. Chloroplasts

4. The xylem transports water and minerals to the leaves; the phloem transports the photosynthetic products to the other parts of the plant.

5. The epidermis consists of the upper and lower epidermis; it aids in the regulation of gas exchange via stomata; prevent transpiration

Giải thích các bước giải: