SYNTHESIZE 1. If you buy a bag of potatoes and leave them in a dark cupboard for
ID: 205597 • Letter: S
Question
SYNTHESIZE 1. If you buy a bag of potatoes and leave them in a dark cupboard for too long, they will begin to form long white sprouts with tiny leaves. Name this process and explain why the potatoes are behaving as they are. 2. Find the definition of taxis in the glossary. Compare and contrast tropism with taxis 3. The current model for gravitropism suggests that the accumulation of amyloplasts on the bottom of a cell allows the cell to sense gravity. Suggest a plausible mechanism for the sensing of gravity that does not involve the settling out of particles 4. Farmers who grow crops that are planted as seedlings may prepare them for their transition from the greenhouse to the field by brushing them gently every day for a few weeks. Why is this beneficial?Explanation / Answer
Question: 1
Potato sprouts:
Potato is the modified stem known as tuber. The plants to survive the unfavourable environment the stem gets modified to store starch, and remain compact.
Question: 2
Taxis:
It is the behavioural response of the cell or organism in response to stimulus. The stimulus can be attraction towards it or the repulsion away from the stimulus.
Gravititaxis – response to gravity
Trophism:
It is the movement of the plants and fungus in response to stimulus.
Thigmotrophism: plant response when it is touched.
Question: 3
Mechanism of Gravitropism by phytochrome:
Phytochrome:
Question: 4
Seedlings grown in house or green house will need a time to adjust to the environment condition. This transition period is known as “hardening off”.
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.