Biology Questions Answers : Biology Terminology (Set 1) consists of 10K MCQ to analyse various terms used in Biological processes which are important for various competitive examinations like IAS, PSC, SSC, Railway etc.
1. What is the main site for photosynthesis in plants?
(A) Root
(B) Leaf
(C) Stem
(D) Flower
2. During respiration, which gas is taken in by humans?
(A) Oxygen
(B) Carbon dioxide
(C) Nitrogen
(D) Helium-C
3. Which of the following enzymes in saliva begins the digestion of starch?
(A) Amylase
(B) Pepsin
(C) Lipase
(D) Trypsin
4. which organ is responsible for water absorption?
(A)Stomach
(B) Small intestine
(C) Liver
(D) Large intestine
5. Which part of the brain is responsible for maintaining posture and balance?
(A) Cerebrum A
(B) Cerebellum B
(C) Medulla C
(D) Spinal cord D
6. What is the name of the chemical messenger that transmits nerve impulses across a synapse?
(A) Hormone
(B) Enzyme
(C) Neurotransmitter
(D) Protein
7. Which plant hormone promotes cell elongation and growth?
(A) Cytokinin
(B) Auxin
(C) Gibberellin
(D) Ethylene
8. what is the male reproductive cell called?
(A) Ovum
(B) Egg
(C) Sperm
(D) Zygote
9. Which part of the flower becomes the fruit after fertilization?
(A) Ovary A
(B) Petal B
(C) Anther C
(D) Stigma K
10. What is the mode of asexual reproduction in yeast?
(A) Fragmentation
(B) Binary fission
(C) Spore formation
(D) Budding
11. Who is known as the Father of Genetics?
(A) Darwin
(B) Mendel
(C) Watson
(D) Lamarck
12. What does the term “phenotype” refer to?
(A) Genetic makeup of an organism
(B) Physical appearance of an organism
(C) A type of gene
(D) A group of similar species
13. In a monohybrid cross between two heterozygous tall plants (Tt), what is the probability of obtaining a dwarf (tt) plant?
(A) 40%
(B) 45%
(C) 30%
(D) 25%
14. Which gas is primarily responsible for global warming?
(A) Oxygen
(B) Nitrogen
(C) Carbon dioxide
(D) Hydrogen
15. In an ecosystem, which of the following is a primary consumer?
(A) Grass
(B) Deer
(C) Lion
(D) Snake
