Top-20 Most Important Biology Questions for SSC CPO
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Question 1: Which instrument is used to measure heart beats?
a) Thermometer
b) Lactometer
c) Sphygmomanometer
d) Stethoscope
Question 2: Which of the following is a non communicable disease?
a) Obesity
b) Ebola
c) Rabies
d) Flu
Question 3: What is the chromosome number in a human ovum ?
a) 23
b) 46
c) 48
d) 50
Question 4: Broadly, what are the blood corpuscles that help to built up resistance against diseases ?
a) Monocytes
b) Neutrophils
c) Leucocytes
d) Lymphocytes
Question 5: Which of the following vegetable oils does not contain essential fatty acids ?
a) Groundnut Oil
b) Mustard Oil
c) Sunflower Oil
d) Coconut Oil
Question 6: Tamiflu is
a) A type of influenza originating in Tamil Nadu
b) A contagious disease of animals
c) A form of birdflu
d) An effective medicine for birdflu
Question 7: In a human body, the basic building block are
a) Muscles
b) Cells
c) Bones
d) Nerves
Question 8: The function of DNA in the body is
a) to help in the synthesis of proteins
b) to control the heredity
c) to assist in the release of energy
d) none of the above
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Question 9: A person in normal health requires per day
a) 1000 – 1800 calories
b) 2000 – 3000 calories
c) 3000 – 4000 calories
d) 4000 – 5000 calories
Question 10: Poliomyelitis is caused by
a) Mosquito
b) Virus
c) Water
d) Adulterated Food
Question 11: Milk is a natural
a) Solution
b) Emulsion
c) Mixture
d) Suspension
Question 12: The medicine AZT is
a) a medicine for permanent cure of the dengue fever
b) a drug for fighting AIDS
c) a drug for fighting Swan Flu
d) a drug for control of Polio
Question 13: How many calories are there in one litre of water
a) 1000 calories
b) 100 calories
c) 1 calories
d) None
Question 14: What level of noise is considered permissible in human habitats?
a) Upto 50 decibels
b) Less than 40 decibels
c) Upto 30 decibels
d) Less than 20 decibels
Question 15: 134. The science of the study of soil is
a) pedagogy
b) pedology
c) pedantry
d) paediatry
Question 16: In human body, quantity of water is about
a) 40%
b) 50%
c) 65%
d) 85%
Question 17: If bilirubin is high in a human body, which organ is most affected?
a) Pancreas
b) Liver
c) Kidney
d) Large Intestine
Question 18: Milk, Cheese and Eggs are the source of
a) Vitamin C & A
b) Vitamin A & D
c) Vitamin C & D
d) Vitamin B & C
Question 19: Find the most accurate description of ‘Bt Cotton’
a) A variety of cotton that grows fast
b) A genetically modified crop of cotton whose DNA has been altered by introducing an extra gene
c) A variety of cotton that is immune to diseases.
d) A genetically modified crop of cotton whose DNA has been designed in the lab.
Question 20: If saccharine, an artificial sweetener which is 70 times sweeter than sugar, is kept in the open, which one of these insects will it attract first
a) ants
b) bees
c) house-flies
d) none of the above
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Answers & Solutions:
1) Answer (D)
“Stethoscope” is used to measure heart beats.
Hence, option d is the correct answer.
2) Answer (A)
Ebola, Flu and Rabies are communicable diseases. Obesity is a non communicable disease.
Hence, option a is the correct answer.
3) Answer (A)
4) Answer (C)
5) Answer (C)
6) Answer (D)
7) Answer (B)
8) Answer (D)
9) Answer (B)
10) Answer (B)
11) Answer (B)
12) Answer (B)
13) Answer (D)
14) Answer (A)
15) Answer (B)
16) Answer (C)
17) Answer (B)
18) Answer (B)
19) Answer (B)
20) Answer (D)
