MCQ 71
Which type of leaf arrangement has leaves spiraling around the stem?
A) Alternate
B) Opposite
C) Whorled
D) Rosette
Answer: A) Alternate
Explanation: In an alternate arrangement, leaves grow one at a time from different nodes around the stem.
MCQ 72
What is the main purpose of the flower’s receptacle?
A) Support the flower
B) Attract pollinators
C) Produce nectar
D) Protect the ovules
Answer: A) Support the flower
Explanation: The receptacle is the thickened part of the stem that supports the flower.
MCQ 73
Which of the following is a storage root?
A) Carrot
B) Grass
C) Maple
D) Rose
Answer: A) Carrot
Explanation: The carrot is a storage root that stores nutrients, particularly carbohydrates.
MCQ 74
What is the function of the flower’s peduncle?
A) Support the flower
B) Absorb nutrients
C) Produce nectar
D) Attract pollinators
Answer: A) Support the flower
Explanation: The peduncle is the stalk that supports the flower and connects it to the plant.
MCQ 75
Which part of the flower is typically colorful and attracts pollinators?
A) Stamen
B) Petal
C) Sepal
D) Ovary
Answer: B) Petal
Explanation: Petals are often brightly colored to attract pollinators, facilitating reproduction.
MCQ 76
Which of the following is not a function of leaves?
A) Photosynthesis
B) Gas exchange
C) Nutrient storage
D) Water retention
Answer: C) Nutrient storage
Explanation: While leaves can store some nutrients, their primary functions are photosynthesis and gas exchange.
MCQ 77
What type of root system is characteristic of plants that grow in sandy soils?
A) Taproot
B) Fibrous
C) Adventitious
D) Aerial
Answer: B) Fibrous
Explanation: Fibrous root systems are better suited for sandy soils as they provide better stability and water absorption.
MCQ 78
Which plant structure is responsible for the transport of water?
A) Phloem
B) Xylem
C) Stomata
D) Cuticle
Answer: B) Xylem
Explanation: Xylem transports water and dissolved minerals from the roots to the rest of the plant.
MCQ 79
What type of fruit is a pineapple considered?
A) Simple
B) Aggregate
C) Multiple
D) Accessory
Answer: C) Multiple
Explanation: A pineapple is a multiple fruit formed from the fusion of multiple flowers’ ovaries in an inflorescence.
MCQ 80
Which part of the seed emerges first during germination?
A) Cotyledon
B) Root
C) Shoot
D) Seed coat
Answer: B) Root
Explanation: During germination, the root (radicle) typically emerges first to anchor the plant and absorb water.
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