1. Which of the following terms refers to plants that grow on the surface of other plants without being parasitic?
a) Parasites
b) Epiphytes
c) Xerophytes
d) Hydrophytes
Answer: b) Epiphytes
2. Epiphytes obtain water and nutrients from:
a) Host plants
b) Soil
c) Rainwater
d) Underground roots
Answer: a) Host plants
3. What is the main adaptation of epiphytes to their environment?
a) Deep root systems
b) Large leaves for photosynthesis
c) Reduced root systems and water storage organs
d) Thick waxy cuticle
Answer: c) Reduced root systems and water storage organs
4. Which of the following is NOT a characteristic of xerophytes?
a) They are adapted to dry environments
b) They have specialized water storage tissues
c) They have reduced leaf surface area
d) They thrive in aquatic habitats
Answer: d) They thrive in aquatic habitats
5. Xerophytes often have which type of leaves to reduce water loss?
a) Broad and flat
b) Thin and delicate
c) Thick and succulent
d) Needle-like
Answer: c) Thick and succulent
6. Which of the following is a common example of an epiphyte?
a) Orchids
b) Cacti
c) Ferns
d) Grasses
Answer: a) Orchids
7. Which of the following is NOT a common adaptation of xerophytes to conserve water?
a) Sunken stomata
b) Reduced leaf size
c) Increased leaf surface area
d) CAM photosynthesis
Answer: c) Increased leaf surface area
8. The term “xerophyte” is derived from Greek words meaning:
a) Water-loving
b) Dry plant
c) Desert dweller
d) Sun-loving
Answer: b) Dry plant
9. Which of the following is an example of a xerophytic adaptation found in desert plants?
a) Broad leaves
b) Thick cuticle
c) Rapid leaf expansion
d) Shallow root system
Answer: b) Thick cuticle
10. Which type of xerophyte stores water in its stem?
a) Cactus
b) Agave
c) Aloe vera
d) All of the above
Answer: d) All of the above
11. Which of the following is NOT a characteristic feature of epiphytic plants?
a) They are found on the forest floor.
b) They obtain nutrients from the air.
c) They have specialized roots for attachment.
d) They may live in association with other plants.
Answer: a) They are found on the forest floor.
12. Which of the following statements about xerophytes is true?
a) They require a lot of water to survive.
b) They have large, broad leaves to capture sunlight.
c) They are commonly found in wet, marshy areas.
d) They have adaptations to survive in arid environments.
Answer: d) They have adaptations to survive in arid environments.
13. The term “epiphyte” is derived from Greek words meaning:
a) Upon plant
b) Air plant
c) Tree lover
d) Parasitic plant
Answer: a) Upon plant
14. Xerophytes use various mechanisms to reduce water loss, including:
a) Rapid transpiration
b) Large surface area-to-volume ratio
c) Thick cuticles and sunken stomata
d) Broad, flat leaves
Answer: c) Thick cuticles and sunken stomata
15. Which of the following is a common example of a xerophyte?
a) Venus flytrap
b) Saguaro cactus
c) Venus’ slipper orchid
d) Pitcher plant
Answer: b) Saguaro cactus
16. Epiphytic plants are commonly found in:
a) Arid deserts
b) Tropical rainforests
c) Tundra regions
d) Alpine meadows
Answer: b) Tropical rainforests
17. Xerophytes are plants adapted to:
a) Aquatic environments
b) Dry or arid conditions
c) Shady forests
d) Acidic soils
Answer: b) Dry or arid conditions
18. Which of the following adaptations is common in epiphytic plants?
a) Deep root systems
b) Large leaves for water storage
c) Aerial roots for attachment
d) Thin, delicate stems
Answer: c) Aerial roots for attachment
19. Xerophytes commonly employ a photosynthesis pathway known as:
a) C3 photosynthesis
b) CAM photosynthesis
c) C4 photosynthesis
d) Photosynthesis does not occur in xerophytes
Answer: b) CAM photosynthesis
20. Epiphytic plants often have specialized structures called _____________ that enable them to absorb moisture from the air.
a) Rhizomes
b) Aerial roots
c) Stomata
d) Taproots
Answer: b) Aerial roots