CBSE Class 10 Biology Exam Oriented MCQs
CBSE Class 10 Biology – Exam Oriented MCQs
Class: 10 | Subject: Science (Biology)
Section: Exam Oriented
Topic: CBSE Class 10 Biology Exam Oriented MCQs
Based on Latest CBSE Board Examination Pattern
Section: Exam Oriented
Topic: CBSE Class 10 Biology Exam Oriented MCQs
Based on Latest CBSE Board Examination Pattern
These Multiple Choice Questions (MCQs) are designed strictly as per the NCERT syllabus, making them ideal for CBSE Class 10 Science Board Examinations.
1. Functional unit of kidney is:
Answer: B
Nephrons filter blood, remove wastes, and form urine through filtration, reabsorption, and secretion.
Nephrons filter blood, remove wastes, and form urine through filtration, reabsorption, and secretion.
2. Photosynthesis occurs in:
Answer: C
Chloroplast contains chlorophyll which traps sunlight for photosynthesis.
Chloroplast contains chlorophyll which traps sunlight for photosynthesis.
3. Hormone controlling growth in plants:
Answer: A
Auxins promote cell elongation and plant growth.
Auxins promote cell elongation and plant growth.
4. Human heart has chambers:
Answer: C
Two atria and two ventricles ensure efficient double circulation.
Two atria and two ventricles ensure efficient double circulation.
5. Genetic material is:
Answer: B
DNA carries hereditary information from parents to offspring.
DNA carries hereditary information from parents to offspring.
6. Site of fertilization in humans:
Answer: C
Fusion of male and female gametes occurs in oviduct.
Fusion of male and female gametes occurs in oviduct.
7. Energy currency of cell:
Answer: B
ATP stores and transfers energy for cellular work.
ATP stores and transfers energy for cellular work.
8. Breathing rate increases due to:
Answer: B
High CO₂ stimulates respiratory center.
High CO₂ stimulates respiratory center.
9. Xylem transports:
Answer: B
Xylem moves water/minerals upward from roots.
Xylem moves water/minerals upward from roots.
10. Acquired traits are:
Answer: B
They develop during life and are not passed genetically.
They develop during life and are not passed genetically.
11. Blood pigment:
Haemoglobin – carries oxygen.
12. Transpiration occurs through:
Stomata.
13. Male gamete in plants:
Pollen grain.
14. Evolution means:
Gradual change over generations.
15. Reflex action controlled by:
Spinal cord.
16. Insulin regulates:
Blood glucose.
17. Food stored in plants as:
Starch.
18. Double circulation occurs in:
Humans.
19. Genetic variation arises due to:
Mutations & recombination.
20. Sex of child determined by:
Father’s chromosome (X/Y).