Question 1:

Which of the following is NOT a plant tissue?

Explanation: Cortex is not a plant tissue. The main types of plant tissues are epidermis, xylem, phloem, and ground tissues such as cortex and pith. Therefore, option D is correct.

Question 2:

What is the function of xylem tissue in plants?

Explanation: The function of xylem tissue in plants is the transportation of water and minerals. Xylem tissue consists of specialized cells called tracheids and vessels that form a network for water movement from roots to other parts of the plant. Therefore, option A is correct.

Question 3:

Which of the following plant organs is responsible for photosynthesis?

Explanation: The leaf is responsible for photosynthesis in plants. The leaf contains specialized cells called chloroplasts that contain chlorophyll and carry out the process of photosynthesis. Therefore, option C is correct.

Question 4:

What is the primary function of the root system in plants?

Explanation: The primary function of the root system in plants is the absorption of water and minerals from the soil. Roots have root hairs and specialized cells that facilitate the uptake of nutrients. Therefore, option A is correct.

Question 5:

What is the function of the epidermis in plant stems?

Explanation: The epidermis in plant stems functions to protect the plant from pathogens and water loss. The outer layer of the stem is covered by a single layer of cells called the epidermis, which acts as a barrier against pathogens and helps reduce water loss through the process of transpiration. Therefore, option A is correct.