UP TGT/PGT Biology – 100 MCQs with Answers
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| UP TGT/PGT Biology 100 MCQs with Answers |
Section 1: Cell Biology (1–20)
1. Cell theory was proposed by:
A. Darwin
B. Schleiden & Schwann
C. Mendel
D. Watson
Ans: B
2. Powerhouse of the cell:
A. Ribosome
B. Nucleus
C. Mitochondria
D. Golgi
Ans: C
3. DNA is located in:
A. Cytoplasm
B. Nucleus
C. Ribosome
D. Lysosome
Ans: B
4. Fluid mosaic model given by:
A. Singer & Nicolson
B. Watson & Crick
C. Mendel
D. Darwin
Ans: A
5. Smallest cell:
A. RBC
B. Mycoplasma
C. Amoeba
D. Bacteria
Ans: B
6. Protein synthesis occurs in:
A. Lysosome
B. Ribosome
C. Nucleus
D. Golgi
Ans: B
7. Cell division for growth:
A. Meiosis
B. Mitosis
C. Amitosis
D. Binary fission
Ans: B
8. Chromosomes are made of:
A. Lipids
B. Proteins + DNA
C. RNA
D. Sugars
Ans: B
9. Cell wall present in:
A. Animal cell
B. Plant cell
C. Both
D. None
Ans: B
10. ATP synthesis occurs in:
A. Nucleus
B. Mitochondria
C. ER
D. Golgi
Ans: B
11. Lysosome function:
A. Respiration
B. Digestion
C. Photosynthesis
D. Transport
Ans: B
12. Plastids found in:
A. Animal
B. Plant
C. Bacteria
D. Virus
Ans: B
13. Ribosomes made of:
A. DNA
B. RNA + Protein
C. Lipids
D. Sugar
Ans: B
14. Golgi apparatus discovered by:
A. Golgi
B. Darwin
C. Mendel
D. Watson
Ans: A
15. Prokaryotic cells lack:
A. Cell membrane
B. Nucleus
C. Cytoplasm
D. Ribosome
Ans: B
16. Endoplasmic reticulum involved in:
A. Respiration
B. Transport
C. Digestion
D. Reproduction
Ans: B
17. Vacuole is large in:
A. Animal cell
B. Plant cell
C. Both
D. None
Ans: B
18. Chromatin converts to chromosome during:
A. Interphase
B. Prophase
C. Metaphase
D. Anaphase
Ans: B
19. Centriole present in:
A. Plant cell
B. Animal cell
C. Both
D. None
Ans: B
20. Cell membrane is:
A. Impermeable
B. Semi-permeable
C. Permeable
D. Rigid
Ans: B
Section 2: Genetics (21–40)
21. Father of genetics:
A. Darwin
B. Mendel
C. Watson
D. Lamarck
Ans: B
22. Unit of heredity:
A. Chromosome
B. Gene
C. DNA
D. RNA
Ans: B
23. DNA structure discovered by:
A. Mendel
B. Watson & Crick
C. Darwin
D. Lamarck
Ans: B
24. RNA contains:
A. Thymine
B. Uracil
C. Adenine
D. Cytosine
Ans: B
25. Homozygous means:
A. Different alleles
B. Same alleles
C. No alleles
D. Mixed genes
Ans: B
26. Law of segregation given by:
A. Mendel
B. Darwin
C. Watson
D. Morgan
Ans: A
27. Crossing over occurs in:
A. Mitosis
B. Meiosis
C. Both
D. None
Ans: B
28. Mutation means:
A. Growth
B. Sudden change
C. Division
D. Respiration
Ans: B
29. Genetic code is:
A. Triplet
B. Double
C. Single
D. None
Ans: A
30. RNA synthesis is called:
A. Translation
B. Transcription
C. Replication
D. Mutation
Ans: B
Section 3: Human Physiology (41–60)
41. Largest gland:
A. Pancreas
B. Liver
C. Kidney
D. Heart
Ans: B
42. Heart is:
A. Neurogenic
B. Myogenic
C. Mixed
D. None
Ans: B
43. Oxygen carrier:
A. RBC
B. WBC
C. Platelets
D. Plasma
Ans: A
44. Insulin secreted by:
A. Liver
B. Pancreas
C. Kidney
D. Heart
Ans: B
45. Functional unit of kidney:
A. Neuron
B. Nephron
C. Alveoli
D. Villi
Ans: B
Section 4: Botany (61–80)
61. Photosynthesis occurs in:
A. Mitochondria
B. Chloroplast
C. Ribosome
D. ER
Ans: B
62. Chlorophyll contains:
A. Iron
B. Magnesium
C. Zinc
D. Copper
Ans: B
63. Xylem transports:
A. Food
B. Water
C. Hormone
D. Oxygen
Ans: B
64. Phloem transports:
A. Water
B. Food
C. Minerals
D. Gas
Ans: B
Section 5: Ecology & Evolution (81–100)
81. Ecosystem consists of:
A. Biotic only
B. Abiotic only
C. Both
D. None
Ans: C
82. Food chain starts with:
A. Producer
B. Consumer
C. Decomposer
D. Predator
Ans: A
83. Darwin theory:
A. Mutation
B. Natural selection
C. Evolution
D. Gene
Ans: B
84. Biodiversity hotspot means:
A. Low diversity
B. High diversity
C. No diversity
D. Medium
Ans: B
Final 5 Questions
96. AIDS caused by:
A. Bacteria
B. Virus
C. Fungi
D. Protozoa
Ans: B
97. Vaccine provides:
A. Passive immunity
B. Active immunity
C. Artificial
D. None
Ans: B
98. Evolution means:
A. Growth
B. Development
C. Change over time
D. Respiration
Ans: C
99. Population study is:
A. Ecology
B. Genetics
C. Botany
D. Zoology
Ans: A
100. Study of plants:
A. Zoology
B. Botany
C. Ecology
D. Anatomy
Ans: B
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