FACTORS AFFECTING TRANSPIRATION 0.0 / 5 ? BiologyHuman, animal and plant physiologyASAll boards Created by: Jasmin1234Created on: 23-04-18 12:25 HOW ARE GUARD CELLS ON LEAF ARE ADAPTED TO ROLE? Thicker inner cell wall; Able to change shape/bend; Presence of chloroplasts; 1 of 6 COHESION-TENSION THEORY TO MOVE WATER? (3) Evaporation takes place at the top of plant; Creates tension in xylem; Water molecules stick together/are cohesive; Then pulled/drawn up by tension; 2 of 6 WHAT ARE ASSIMILATES? HOW DO THEY MOVE? (2) Assimilates - sucrose, amino acids; Movement - diffusion; 3 of 6 HOW DO DIFFERENT SIZED LEAVES AFFECT TRANSPIRATION Different numbers of stomata; Surface area different; 4 of 6 HOW DO WET LEAVES AFFECT TRANSPIRATION? (1) Decreases water potential gradient; 5 of 6 EXPLAIN EFFECT OF TEMP. ON PHLOEM TRANSPORT. (3) Active transport requires ATP; At low temperatures molecules have low kinetic energy; Therefore less ATP made; Less movement of sugars into the sieve tube; ORA 6 of 6
Comments
No comments have yet been made