C3.1.17 (HL)—Tropic responses in seedlings Topic Practice
C3.1.17 (HL)—Tropic responses in seedlings Topic Practice
Students practise analysing experimental setups that test tropic responses in seedlings under unilateral light or gravity stimuli.
How this is tested
- interpret diagrams showing differential auxin distribution in coleoptiles exposed to lateral light
- explain how root gravitropism results from asymmetric amyloplast sedimentation and auxin redistribution