Question 1

Which structure in plants is responsible for the transport of water from roots to leaves?

Accepted Answer

Xylem

Answer

Epidermis

Answer

Phloem

Answer

Stomata

Question 2

What is the process by which water moves from the roots to the leaves in plants?

Accepted Answer

Transpiration

Answer

Photosynthesis

Answer

Respiration

Answer

Pollination

Question 3

Which of the following is a key factor influencing the rate of transpiration in plants?

Accepted Answer

Humidity

Answer

CO2 concentration

Answer

Light intensity

Answer

Temperature

Question 4

In the process of transpiration, what is the role of stomata in plant leaves?

Accepted Answer

Stomata regulate the loss of water vapor from the leaf.

Answer

Stomata produce oxygen during transpiration.

Answer

Stomata absorb water from the soil.

Answer

Stomata store excess water in the leaf.

Question 5

How does the structure of xylem vessels contribute to their function in water transport?

Accepted Answer

The presence of lignin provides strength and rigidity to xylem vessels, allowing them to withstand the pressure of water transport.

Answer

The xylem vessels have pores for gas exchange.

Answer

The xylem vessels store excess water for later use.

Answer

The xylem vessels contain chlorophyll for photosynthesis.

Question 6

What is the main function of xylem in plants?

Accepted Answer

Transporting water and minerals from the roots to the leaves.

Answer

Regulating gas exchange in leaves.

Answer

Providing structural support to the plant.

Answer

Producing sugars through photosynthesis.

Question 7

What is the term used to describe the loss of water vapor from plant leaves through stomata?

Accepted Answer

Transpiration

Answer

Pollination

Answer

Respiration

Answer

Photosynthesis

Question 8

Which of the following statements is true regarding the role of transpiration in plants?

Accepted Answer

Transpiration helps to create a negative pressure in the xylem vessels, assisting in the upward movement of water.

Answer

Transpiration causes the xylem vessels to expand, facilitating water transport.

Answer

Transpiration leads to an increase in root pressure, pushing water up the plant.

Answer

Transpiration reduces the need for water uptake from the soil.

Question 9

How does the structure of stomata in plant leaves contribute to the process of transpiration?

Accepted Answer

Stomata open and close to regulate the rate of water vapor loss from the leaf.

Answer

Stomata store excess water to prevent dehydration.

Answer

Stomata transport water from roots to leaves.

Answer

Stomata produce water vapor during transpiration.

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