Which of the following is a trace element? MCQ with Answer and Explanation

Which of the following is a trace element?
A. Zinc
B. Phosphorus
C. Potassium
D. Sodium
Answer: Option A
Solution (By JKSSB Mock Tests)
Zinc is a micronutrient (trace mineral) required in small amounts for enzyme function, immune response, and wound healing. Sodium, potassium, and phosphorus are macrominerals.

Discuss this Question (0)

No comments yet. Be the first to start the discussion!

Practice More Biology Questions

Question #1
A network of interconnected food chains is called a:
A. Food web
B. Ecological niche
C. Trophic level
D. Food pyramid

Correct Answer: Option A


Explanation:
A food web represents complex feeding relationships in an ecosystem, showing how multiple food chains are linked. Food chain is linear.

This question belongs to: Science Biology
Question #2
Cytokinesis in plant cells occurs by:
A. Cell plate formation
B. Furrowing
C. Cleavage
D. Budding

Correct Answer: Option A


Explanation:
Due to the rigid cell wall, plant cells form a cell plate at the equator, which develops into a new cell wall separating daughter cells. Animal cells form a cleavage furrow.

This question belongs to: Science Biology
Question #3
Which of the following statements about sex determination in humans is correct?
A. Sex is determined by autosomal chromosomes.
B. The mother’s egg determines the sex of the child.
C. Males produce two types of sperm: X-bearing and Y-bearing.
D. Females have XY chromosomes.

Correct Answer: Option C


Explanation:
Human males are XY and produce X and Y sperm; females are XX. The sperm determines sex. Thus, C is correct.

This question belongs to: Science Biology