Question

Drought ABA production, reducing water loss by closing
stomata
Flooding Formation of air tubes that help roots survive
oxygen deprivation
Salt Avoiding osmotic water loss by producing solutes
tolerated at high concentrations
Heat Synthesis of heat-shock proteins, which reduce
protein denaturation at high temperatures
Cold Adjusting membrane fluidity; avoiding osmotic
water loss; producing antifreeze proteins

summarize briefly

Answer 1

Plants have developed various adaptations to cope with environmental stressors:

- **Drought**: Close stomata to reduce water loss.
- **Flooding**: Form air tubes to help roots survive low oxygen levels.
- **Salt**: Synthesize solutes to prevent osmotic water loss at high concentrations.
- **Heat**: Produce heat-shock proteins to prevent protein denaturation.
- **Cold**: Adjust membrane fluidity, prevent osmotic water loss, and produce antifreeze proteins.