IB Transport of water in plants

What process involves the loss of water vapour from the stems and leaves of plants?

Identify the structure in the image through which water vapour can diffuse.

Identify the force of attraction between two particles of the same substance.

• Cohesion

• Adehesion

• Latent heat of vapourisation

• Specific heat capacity

Identify the tissue in which water is transported in plants.

• Phloem

• Palisade mesophyll

• Xylem

• Spongy mesophyll

The walls of xylem vessels are reinforced with which substance?

Identify the process responsible for the uptake of mineral ions by the roots.

• Osmosis

• Endocytosis

• Facilitated diffusion

• Active transport

Identify the type of plants that have adaptations to reduce the loss of water in arid habitats

Identify an adaptation found in halophytes

• Rolled leaves

• Salt excretion

• Leaves reduced to spines

• Stomata in pits

Identify the property of water characterised by a force of attraction between two particles of different substances (e.g. water molecule and xylem wall)

• Cohesion

• Solvent

• Transparent

• Adhesion

What effect will increasing humidity have on the rate if transpiration?

• No effect

• Decrease rate of transpiration

• Increase rate of transpiration

• Effect will vary