science biology questions

 

 

1. Which one of the following processes in the bodies of organisms is a digestive processes?

(A) Breakdown of proteins into amino acids
(B) Breakdown of glucose into Calcium and  protein 
(C) Conversion of glucose into glycogen.
(D) Conversion of amino acids into proteins

Ans

2 In the human body, which structure is the appendix attached to?

(A) The large intestine 
(B) The small intestine
 (C) The gall bladder
(D) The stomach

Ans
 
3.In which of the following organs bile is stored?

(A) Spleen
(B) Appendix
(C) Pancreas 
(D) Liver

Ans
 
4 Among the following, presence of which brings sweetness in milk? 
(A) Microbes 
(B) Sucrose
(C) Lactose 
(D) Carotene

Ans 

5. The Saliva helps in digestion of

(A) Starch 
(B) Fibers
(C) Proteins 
(D) Fat

Ans 

6. When there is a decrease in the concentration of oxygen in the blood, the rate of breathing:

(A) Decreases
(B) Increases
(C) Does not change
(D) First decreases, then increases

Ans 

7 Oxygen transportation in a human body takes place through?

1. Blood
2. Lungs
3. Tissues

The correct sequence of transportation is-

(A) 1, 2, 3
(B) 3, 1, 2
(C) 2, 1, 3
( D) 1, 3 , 2

Ans

8. The sensation of fatigue in the muscles after prolonged strenuous physical work, is caused by:

(A) A decrease in the supply of oxygen
(B) Minor wear and tear of muscle fibers
(C) The depletion of glucose
(D) The accumulation of lactic acid

Ans 

9. Cholesterol is:

(A) An insecticide
(B) A vitamin 
(C) A steroid 
(D) An enzyme 

Ans

10.The class of food having  highest calorie value per unit weight is:

(A) Vitamin
(B) Carbohydrate
(C) Fat
(D) Proteins

Ans

11. Fathometer is used to measure:

(A) Earthquake 
(B) Depth of sea 
(C) Rain
(D) Sound intensity

Ans 

12.The intensity of earthquake is measured by: 

(A) Barometer 
(B) Polygraph 
(C) Hydrometer 
(D) Seismograph

Ans

13 The apparatus used to measure the intensity of sound is: 

(A) Chronometer 
(C) Audio phone 
(B) Anemeter
(D) Audiometer

Ans

14.The density of milk can be obtained by the use of:

(A) Hydrometer
(B) Lactometer
(C) Butyrometer
(D) Thermometer

Ans

15.Which of the following is measured by Anemometer? 

(A) Velocity of water-flow 
(B) Depth of water 
(C) Force of the wind
(D) Intensity of light

Ans

16.Which instrument is used to measure atmospheric pressure?
 
(A) Hydrometer 
(B) Manometer 
(C) Barometer
(D) Hygrometer

Ans

17.The apparatus used to measure the intensity of light is known as:
 
(A) Anemometer 
(B) Luxmeter 
(C) Colorimeter 
(D) Altimeter

Ans

18 Pyrheliometer' is used for measuring:

(A) Sun spots 
(B) Solar radiation
(C) Air temperature 
(D) None of these 

Ans

19 Pyrometer is a device for:

(A) High temperature 
(B) Intensity of earthquake
(C) Density of milk Ans. 
(D) Humidity 

Ans



20 Humidity measuring device is:

(A) Hydrometer
(B) Hygrometer
(C) Spectrometer
(D) Eudiomeeter

Ans 

21. Which one of the following is the unit of measure of the thickness of the ozone layer
 of the atmosphere?

(A) Knot
(B) Poise
(C) Dobson
(D) Maxwell

Ans 

22. Distance is measured by:

(A) Mole 
(B) Light year 
(C) Joule 
(D) Ampere 

Ans 

23 One Astronomical unit is the average distance between:

(A) Earth and the sun
(B) Earth and the moon
(C) Jupiter and the sun 
(D) Pluto and the sun

Ans 

24. Decibel is used to measure:

(A) Hemoglobin in blood 
(B) Sugar in urine
(C) Sound in atmosphere 
(D) Particles in air

Ans

25 Pascal is a unit of measuring:

(A) Humidity 
(B) Pressure 
(C) Rainfall 
(D) Temperature

Ans 

26.Constituents of atomic nucleus are

(A) Electron and proton
(B) Electron and neutron
(C) Proton and neutron
(D) Proton, neutron and electron

Ans 

27. Which of the following statement is correct about atomic structure?

(A) Neutron and electron present in nucleus, protons revolve around the nucleus
(B) Electron and proton present in nucleus, neutrons revolve around the nucleus
(C) Proton and neutron present in nucleus, electrons revolve around the nucleus
(D) Proton, neutron and electron all are present in nucleus

 Ans

28. To produce electricity which metal is used?

(A) Uranium
(B) Iron 
(C) Copper
(D) Aluminum 

Ans

29. Which of the following have negative charge?
\
(A) X-rays 
(B) Alpha-rays
(C) Beta-rays 
(D) Gamma-rays 

Ans

30.Radioactive elements emits

(A) Alpha-rays 
(C) Beta-rays
(B) Gamma-rays 
(D) All of these

Ans

31.Atom Bomb is based upon principle of

(A) Nuclear fission
(C) Nuclear fusion
(B) Both 'A' and 'B"
(D) None of these

Ans 

32 .Gamma rays are___

(A) high energy electro magnetic radiation 
(B) high energy electron
(C) low energy electron
(D) high energy positron  

Ans 

33.Cobalt-60 is normally used for Radiation thereapy because it emits- 

(A) Alpha rays
(B) Beta rays
(C) Gamma rays 
( D) X Rays

Ans C

34. Which of the following is used as a moderator in nuclear reactor? 

(A) Thorium 
(B) Radium 
(C) Heavy water
(D) Ordinary water

Ans 

27. Which of the following statement is correct about atomic structure?

(A) Neutron and electron present in nucleus, protons revolve around the nucleus
(B) Electron and proton present in nucleus, neutrons revolve around the nucleus
(C) Proton and neutron present in nucleus, electrons revolve around the nucleus
(D) Proton, neutron and electron all are present in nucleus

 Ans

Answers 
1A, 2A, 3D, 4C, 5A, 6B, 7C, 8D, 9C, 10C, 11C, 12D, 13D, 14B, 15C, 16C,17B, 18B, 19A, 20B, 21C, 22B, 23A, 24C, 25C, 27C, 28A, 29B, 30D, 31A, 32A, 33C, 34C,  35B 



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