The process by which plants absorb water from the soil is primarily through: MCQ with Answer and Explanation

The process by which plants absorb water from the soil is primarily through:
A. Root hairs
B. Leaves
C. Stem
D. Flowers
Answer: Option A
Solution (By JKExamLibrary)
Root hairs, unicellular extensions of epidermal cells in the root maturation zone, greatly increase surface area for water and mineral absorption from the soil. Water enters by osmosis. Leaves absorb some water through stomata but primarily lose water. The stem transports, and flowers are reproductive.

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Practice More Biology Questions

Question #1
The type of plant that has adapted to survive in very dry environments is called:
A. Halophyte
B. Hydrophyte
C. Mesophyte
D. Xerophyte

Correct Answer: Option D


Explanation:
Xerophytes (e.g., cactus, acacia) have adaptations like thick cuticle, sunken stomata, reduced leaves, and water-storing tissues to conserve water in arid habitats. Hydrophytes live in water, mesophytes in moderate conditions, halophytes in saline soils. Xerophytes minimize transpiration and maximize water uptake.

This question belongs to: Science Biology
Question #2
The vitamin that functions as an antioxidant and is also known as tocopherol is:
A. Vitamin A
B. Vitamin E
C. Vitamin C
D. Vitamin D

Correct Answer: Option B


Explanation:
Vitamin E (tocopherol) is a fat-soluble antioxidant that protects cell membranes from lipid peroxidation. Vitamin C is water-soluble antioxidant, A is for vision, D for calcium.

This question belongs to: Science Biology
Question #3
The male reproductive part of a flower is the:
A. Stamen
B. Sepal
C. Pistil
D. Petal

Correct Answer: Option A


Explanation:
The stamen is the male reproductive organ, consisting of an anther (producing pollen) and a filament. The pistil (carpel) is the female part, petals attract pollinators, sepals protect the bud.

This question belongs to: Science Biology