Plant Adaptations and Transport Processes

The video tutorial covers plant transport systems, focusing on xylem and phloem. It explains how leaves adapt to different environments, the functions of plant parts like stems and roots, and the processes of transpiration and translocation. The tutorial also discusses why plants require specialized transport systems instead of relying solely on diffusion. Key concepts are reinforced with examples and questions for review.

What adaptation helps a cactus survive in a hot environment?

• Deep roots

• Waxy cuticle

• Large leaves

• Bright flowers

Which part of the plant is primarily responsible for transporting water?

• Phloem

• Leaves

• Flowers

• Xylem

What is the main function of root hair cells?

• Seed production

• Flowering

• Water and mineral absorption

• Photosynthesis

How does water move through the xylem?

• By osmosis

• Via a one-way system from roots to leaves

• Through active transport

• By diffusion

What process describes the movement and loss of water in plants?

• Respiration

• Transpiration

• Photosynthesis

• Translocation

Which condition does NOT increase the rate of transpiration?

• High humidity

• High temperature

• Low humidity

• High light intensity

What role do guard cells play in a plant?

• Absorbing water

• Controlling the opening and closing of stomata

• Producing flowers

• Transporting sugars

What is the primary function of phloem in plants?

• Absorbing sunlight

• Transporting water

• Transporting sugars and amino acids

• Providing structural support

What is translocation in plants?

• Root growth

• Movement of dissolved food molecules through phloem

• Movement of water through xylem

• Gas exchange in leaves

Why can't plants rely solely on diffusion for substance transport?

• Diffusion is too slow over long distances

• Diffusion requires energy

• Diffusion is not effective in water

• Diffusion only works in animals