Form 5 Biology Bab 7: Adaptations of Plants in Different Habitats
Instructions
Answer all structured, objective, and short-answer questions based on Chapter 7: Adaptations of Plants in Different Habitats.
10 questions · 22 marks total
1. Compare the root adaptations of Avicennia sp. and Rhizophora sp. in relation to their respective physiological functions in mangrove ecosystems.
Short Answer · 4m2. A mangrove swamp is characterized by high salinity and anaerobic soil. Explain two mechanisms used by mangrove halophytes to survive high salt concentrations.
Short Answer · 3m3. Describe two adaptations of xerophytic leaves that help minimize water loss through transpiration.
Short Answer · 3m4. Explain how the presence of aerenchyma tissue assists floating aquatic plants in their environment.
Short Answer · 2m5. An aquatic plant grows entirely submerged underwater in a river. Describe two anatomical features of its leaves that adapt it to this environment.
Short Answer · 4m6. True or False: Floating hydrophytes have their stomata located primarily on the lower leaf epidermis.
True / False · 1m7. State two structural differences between floating hydrophytes (e.g., Eichhornia crassipes) and submerged hydrophytes (e.g., Hydrilla sp.).
Short Answer · 2m8. Fill in the blank: Plants adapted to live in extremely dry and arid environments with scarce water supply are called ________.
Fill in the Blank · 1m9. True or False: Viviparity in halophytes allows seeds to germinate while still attached to the parent tree before dropping into the mud.
True / False · 1m10. Which adaptive feature allows mangrove plants like Rhizophora sp. to remain anchored firmly in soft, muddy soil exposed to tidal forces?
Multiple Choice · 1m