Quiz on Xerophytes and Hydrophytes Adaptations

What environmental conditions are xerophytes adapted to?

• Excessive water supply

• Restricted water availability

• High nutrient soil

• Low light conditions

Which of the following is an example of a xerophyte?

• Duckweed

• Water lily

• Marram grass

• Lotus

What is the primary function of a thick cuticle in xerophytes?

• To aid in photosynthesis

• To reduce cuticular transpiration

• To increase water absorption

• To facilitate gaseous exchange

Why do xerophytes have very small leaves or spines?

• To increase surface area for photosynthesis

• To reduce surface area for transpiration

• To attract pollinators

• To store water

What is the role of sunken stomata in xerophytes?

• To increase water absorption

• To deflect air currents and reduce transpiration

• To enhance photosynthesis

• To store nutrients

Which feature of xerophytes helps in water storage during drought?

• Thin leaves

• Succulent leaves/stem

• Deep root system

• Spines

What environmental conditions are hydrophytes adapted to?

• Dry and windy conditions

• High altitude areas

• Water or very wet places

• Saline soil

Which of the following is an example of a hydrophyte?

• Cacti

• Aloe Vera

• Duckweed

• Marram grass

What is the function of aerenchyma tissue in hydrophytes?

• To store nutrients

• To aid flotation and maximise light absorption

• To increase transpiration

• To protect against herbivores

Why do hydrophytes have stomata on the upper surface of their leaves?

• To prevent water loss

• To allow gases to diffuse in from the air

• To increase water absorption

• To enhance nutrient uptake