B6-9 Definitions

Question 1

Photosynthesis

Answer 1

The process by which plants manufacture carbohydrates from raw materials using energy from light

Question 2

Limiting factor

Answer 2

Something present in the environment in such short supply that it restricts life processes

Question 3

Transpiration

Answer 3

Loss of water vapour from plant leaves by evaporation of water at the surfaces of the mesophyll cells followed by diffusion of water vapour through the stomata

Question 4

Translocation

Answer 4

The movement of sucrose and amino acids in phloem, from regions of production (source) to regions of storage, or to regions where they are used in respiration and growth (sink)