Top 1000+ Solved Biology (GK) MCQ Questions Answer

From 841 to 855 of 1657

Q. Exobiology is a science that deals with

a. extinct forms

b. life in other planets

c. life in the outer space

d. life in marine habitat

  • c. life in the outer space

Q. Which of the following fuels causes minimum environmental pollution?

a. Diesel

b. Kerosene

c. Hydrogen

d. Coal

  • c. Hydrogen

Q. Name the organ where the embryo develops -

a. Uterus

b. Fallopian tube

c. Ureter

d. Cervix

  • c. Ureter

Q. Which of the following organelle is responsible for synthesizing of proteins in the cell?

a. Golgi apparatus

b. Ribosome

c. Lysosome

d. Nucleus

  • b. Ribosome

Q. Plants get water through the roots because of —

a. elasticity

b. capillarity

c. viscosity

d. photosynthesis

  • b. capillarity

Q. The central control of respiratory activity in human body is exercised by –

a. cerebrum

b. cerebellum

c. medulla oblongata

d. hypothalamus

  • c. medulla oblongata

Q. Examples of vegetative propagation are

a. rhizome

b. offset

c. tuber

d. All of these

  • d. All of these

Q. The biological decomposition of organic substances in wastes under controlled conditions known as -

a. composting

b. incineration

c. sanitary landfill

d. pyrolysis

  • a. composting

Q. Human bone does not contain –

a. calcium

b. carbon

c. oxygen

d. phosphorous

  • c. oxygen

Q. Birds usually have a single –

a. Kidney

b. Lung

c. Testis

d. Ovary

  • d. Ovary

Q. Alfalfa is the name of a kind of –

a. Forest

b. Crop

c. Grass

d. None of these

  • b. Crop

Q. The protein present in the finger nail is

a. Actin

b. Myosin

c. Globin

d. Keratin

  • d. Keratin

Q. 'Corms & seeds are seeds with -

a. Long hairs

b. Wings

c. Bristles

d. Hooks

  • a. Long hairs

Q. The sugar present in DNA is –

a. Pentose

b. Xylulose

c. Hexose

d. Heptulose

  • a. Pentose

Q. Which of the following weeds has been found effective in checking water pollution caused by industrial affluents?

a. Water hyacinth

b. Elephant Grass

c. Parthenium

d. Both (2) and (3)

  • a. Water hyacinth
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