Study Notes
Xerophytes are plants adapted to survive in environments with very little water.
- Xerophytes — plants that have adapted to arid environments Example: Cacti are xerophytes that store water in their thick stems.
- Succulent — a plant with thick, fleshy tissues adapted to store water Example: Aloe vera is a succulent that retains water in its leaves.
- Stomata — small openings on the surface of leaves for gas exchange Example: Xerophytes often have fewer stomata to reduce water loss.
Exam Tips
Key Definitions to Remember
- Xerophytes: plants adapted to arid environments
- Succulent: a plant with thick tissues for water storage
- Stomata: openings on leaves for gas exchange
Common Confusions
- Confusing xerophytes with hydrophytes, which are adapted to aquatic environments
- Assuming all succulents are xerophytes, though not all are adapted to extremely dry conditions
Typical Exam Questions
- What is a xerophyte? A plant adapted to survive in dry environments.
- How do succulents store water? They store water in their thick, fleshy tissues.
- Why do xerophytes have fewer stomata? To reduce water loss through transpiration.
What Examiners Usually Test
- Understanding of plant adaptations to dry environments
- Ability to identify examples of xerophytes and their features
- Differences between xerophytes and other plant types