Transport in Plants AS Biology Quiz

What is the structure of xylem vessels and how does it aid in the transport of water and minerals in plants?

• Xylem vessels are composed of phloem and cambium, which aid in the transport of water and minerals in plants.

• Xylem vessels are made of leaves and flowers, which help in the transport of water and minerals in plants.

• Xylem vessels are hollow and rigid, which hinder the transport of water and minerals in plants.

• Xylem vessels are composed of tracheids and vessel elements, which form a continuous tube for water and mineral transport.

Explain the process of lignification and its role in the structure of xylem vessels.

• Lignification strengthens the xylem vessels and provides structural support.

• Lignification is a process that occurs in the phloem vessels, not the xylem vessels.

• Lignification has no role in the structure of xylem vessels.

• Lignification weakens the xylem vessels and reduces structural support.

What is the function of phloem in the transport of organic compounds in plants?

• Transporting organic compounds

• Regulating water uptake

• Supporting the plant structure

• Producing organic compounds

Describe the process of translocation and how it is facilitated by the phloem.

• The phloem facilitates translocation by transporting organic compounds such as sugars from the leaves to other parts of the plant.

• Translocation is facilitated by the xylem, which transports organic compounds from the leaves to other parts of the plant.

• The phloem facilitates translocation by transporting water from the roots to the leaves.

• Translocation is a process that only occurs in animal cells, not in plants.

What is transpiration and what role does it play in the movement of water in plants?

• Transpiration is the process of water moving from the roots to the leaves, but it does not play a significant role in the movement of water in plants.

• Transpiration has no role in the movement of water in plants, it is solely for the release of excess water from the plant.

• Transpiration helps to pull water up from the roots to the leaves through the xylem vessels, creating a continuous flow of water and nutrients throughout the plant.

• Transpiration is the process of water moving from the leaves to the roots, causing a disruption in the flow of nutrients in the plant.

Explain the factors that affect the rate of transpiration in plants.

• Bird migration, cloud cover, moon phase

• Soil pH, plant height, leaf color

• Temperature, humidity, wind, light intensity, and water availability

• Number of petals, type of soil, time of day

How does water move through the roots and stem to reach the leaves in plants?

• Transpiration and cohesion-tension mechanism

• Photosynthesis and osmosis

• Diffusion and active transport

• Capillary action and root pressure

Discuss the role of mineral ions in the movement of water within the plant.

• Creating a concentration gradient that drives the uptake of water through osmosis

• Causing water to evaporate from the plant through transpiration

• Preventing the movement of water by blocking the xylem vessels

• Breaking down water molecules to release oxygen and hydrogen