Plant Transpiration and Transport Processes

The video provides a comprehensive lesson on plant transport systems, focusing on the xylem and phloem. It explains how the xylem transports water and minerals through transpiration, while the phloem distributes glucose and amino acids via translocation. The structure and function of root hair cells, leaf layers, and factors affecting transpiration are also covered.

What is the primary function of the xylem in plants?

• Gaseous exchange

• Transport of glucose

• Photosynthesis

• Transport of water and minerals

Which process is responsible for the movement of sugars in plants?

• Transpiration

• Translocation

• Osmosis

• Photosynthesis

What is the role of lignin in xylem vessels?

• To reinforce and support the vessels

• To facilitate photosynthesis

• To transport glucose

• To store energy

Where are the xylem and phloem located in plant stems?

• Both are on the inside

• Both are on the outside

• Phloem on the outside, xylem on the inside

• Xylem on the outside, phloem on the inside

How do root hair cells absorb water?

• Through active transport

• Through osmosis

• Through photosynthesis

• Through diffusion

What is the main function of the palisade mesophyll in leaves?

• Water absorption

• Gaseous exchange

• Light energy absorption for photosynthesis

• Mineral transport

What role do guard cells play in the stomata?

• They transport minerals

• They store glucose

• They regulate the opening and closing of stomata

• They perform photosynthesis

Which factor does NOT affect the rate of transpiration?

• Humidity

• Light intensity

• Temperature

• Soil type

How does increased air movement affect transpiration?

• Decreases the rate of transpiration

• Increases the rate of transpiration

• Has no effect on transpiration

• Stops transpiration completely

What is the primary benefit of transpiration for plants?

• It cools the plant

• It provides structural support

• It transports glucose

• It facilitates photosynthesis