Transport in Plants - Grade 9 IGCSE

These flashcards cover key vocabulary and definitions related to the topic of transport in plants for Grade 9 IGCSE.

Xylem

Tissue responsible for the transport of water and mineral ions, and provides support.

Phloem

Tissue responsible for the transport of sucrose and amino acids.

Transpiration

The loss of water vapour from leaves.

Root hair cells

Specialized cells in plant roots that absorb water and mineral ions from the soil.

Translocation

The movement of sucrose and amino acids in phloem from sources to sinks.

Cohesion forces

Attraction forces between particles of the same substance, significant in water movement in plants.

Adhesive forces

Attraction forces between particles of different substances, important for water movement along xylem.

Water potential gradient

The difference in water potential that drives the movement of water from the soil into root hair cells.

Cortex

Tissue between the epidermis and vascular bundles, involved in storage and gas exchange.

Stomata

Pores on leaf surfaces that regulate gas exchange and water loss through transpiration.