121 Biology GK MCQ question & Answer in English

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121 Biology GK MCQ question & Answer in English हिन्दी

Biology is the science that studies life and its physicochemical processes. The research is separated into numerous branches for convenience, including botany, zoology, morphology, etc. Let's do a fun quiz about life science that will help us better our knowledge and prepare for competitive exams.

37. In ecosystems, nitrogen is fixed in the manner listed below. Which of the following assertions is untrue?

A. By electrical discharges in the atmosphere

B. By cyanobacteria

C. By industrially synthesised fertilizer

D. By denitrification

36. Plants generate pollen grains in

A. roots

B. leaves

C. stem

D. flower

35. Pollination by wind is called

A. zoophily

B. anemophily

C. hydrophily

D. entomophily

34. Mutation is

A. a factor responsible for plant growth

B. a factor responsible for plant growth

C. a change that is inherited

D. a change which affects the parents

33. Classes of enzymes include oxidoreductases, transferases, hydrolases, lyases, isomerases, and ligases.

A. enzymes

B. hormones

C. proteins

D. vitamins

32. The name of the young one is called a

A. cockroach

B. housefly

C. beetle

D. butterfly

31. Plants that thrive in conditions of typical humidity and temperature are referred to as

A. halophytes

B. halophytes

C. mesophytes

D. xerophytes

30. a protein referred to as a transporter of oxygen in our blood

A. myoglobin

B. collagen

C. keratin

D. haemoglobin

29. Pulses are a good source of

A. vitamins

B. proteins

C. fats

D. carbohydrates

28. The best option for studying mutations is one of the following

A. Haploids

B. Diploids

C. Tetraploids

D. Polyploid

27. Chromosome count for Down syndrome is

A. 46

B. 47

C. 48

D. 49

26. Mumps is a disease caused by

A. fungus

B. virus

C. bacterium

D. None of these

25. The majority of our body's tissues are

A. nervous

B. epithelial

C. connective

D. muscular

24. The most typical poultry illness in India is

A. ranikhet

B. fowl pox

C. tick fever

D. coryza

23. Radish is a

A. bulb

B. conn

C. modified root

D. tuber

22. The outer covering of the virus made up of protein is

A. coat

B. virion

C. viriod

D. capsid

21. Light-related motions are depicted by

A. flowering plants

B. lower plants

C. all the plants

D. all land plants

20. Our major foods, fibers, spices, fruits, and beverage crops are

A. gymnosperms plants

B. flowering plants

C. pteridophytes

D. bryophytes

19. Organic Substances that regulate growth and development in extremely small doses are referred to as

A. vitamins

B. hormones

C. enzymes

D. None of the above

18. The occurrence of spontaneous radioactive emission is known as

A. protons (alpha particles)

B. electrons (beta particles)

C. gamma rays (short wave electromagnetic waves)

D. All of the above

17. Dicot root and monocot root are different in that

A. open vascular bundles

B. scattered vascular bundles

C. well developed pith

D. radially arranged vascular bundles

16. Night blindness is caused by a lack of which vitamin?

A. Vitamin A

B. Vitamin B

C. Vitamin C

D. Vitamin D

15. Norepinephrine increases

A. blood pressure

B. saliva production

C. urine production

D. respiration

14. Pigmentation of the skin is due to

A. lymphocytes

B. monocytes

C. leucocytes

D. melanocytes

13. Which of the following plants was the subject of Gregor Mendel's famous experiment?

A. Gram

B. Wheat

C. Pea

D. Maize

12. Photosynthesis is a process

A. reductive and exergonic

B. reductive and catabolic

C. reductive, endergonic and catabolic

D. reductive, endergonic and anabolic

11. Osmosis is the process by which a semipermeable membrane allows a solution of higher concentration to flow into a solution of lower concentration. What about the statement is untrue?

A. Exact concentration of solution is not given

B. The flow of solution is not possible through semi permeable membrane

C. Character of semi permeable membrane is not given

D. All are incorrect

10. Plant sways toward the light source due to the curvature movement known as

A. geotropism

B. Thigmotropism

C. phototropism

D. chemotropism

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