biology MCQs – Page 7

Practise multiple-choice questions from biology for competitive examinations and subject revision. Review each marked answer and report any item that may be outdated or unclear.

biology Mcqs
121. Biological organization is_____________?
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A. advance

B. complex

C. simple

D. highly complex
122. Amoeba can move with the help of?
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A. Water

B. Flagella

C. ilia

D. Pseudopodia
123. On wound __________ fight foreign particles, like bacteria?
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A. Plasma

B. Red Blood Cells

C. White Blood cells

D. Platelets

124. Out of 92 naturally occurring chemical elements how many are considered as bio-elements?
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A. 16

B. 6

C. 15

D. 26

125. Which is the largest gland in the human body?
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A. None of these

B. Pancreas

C. Thyroid

D. Liver
126. Protein factory is___________?
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A. centriole

B. golgi complex

C. ribosome

D. nucleus

127. Sodium ions are pumped from a region of lower concentration to a region of higher concentration in the nerve cells of humans. This process is an example of
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A. Active transport

B. Diffusion

C. Osmosis

D. Passive transport

128. Which statement is incorrect for pasteurization?
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A. It involves heating the substance at high temperature for just few sec.

B. It can be used to preserve vegetables and meat.

C. It was developed by Louis Pasteur.

D. It is used to preserve yogurt and milk

129. In animals coordination is achieved by means of?
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A. Nervous system

B. Endocrine system

C. Respiratory system

D. Both A and B
130. An educated guess is called:
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A. Conclusion

B. Hypothesis

C. Observation

D. Accumulated Data

131. _____________ is a scientific word for human beings?
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A. Consumer

B. Omnivore

C. Homo sepions

D. Animals

132. Which disease has been totally eradicated from the world because of effective vaccination?
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A. Measles

B. Hepatitis

C. Small pox

D. Polio

133. The study of fossils is called__________?
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A. Historical biology

B. Environmental Biology

C. Palaeontology

D. Social biology

134. Ribosomes are tiny Granules first studied in 1955 by__________?
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A. Palade

B. De-Duve

C. Schwann

D. August Weismann

135. Oxygen accounts for __________ percent of totals human body mass?
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A. 3%

B. 18%

C. 65%

D. 10%

136. It is possible to date the rocks by comparing the amount of specific radioactive isotopes they contain. Which of the statement is correct in this respect:
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A. Older sediment layers have less amount of these reaioactive isotopes as that of the young ones.

B. Older sediment layers did not have these radioactive isotopes

C. Older sediment layers have greater amount of these radioactive isotopes as that of the young ones.

D. Older sediment layers have equal amount of these reaioactive isotopes as that of the young ones

137. Sythetic insulin from pork was formed by which technique__________?
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A. Parasitology

B. Social biological techniques

C. Biotechnology

D. Both a and c

138. The single healthy megaspore retained within the megasporangium germinates to form an egg containing female gaemtophyte called______________?
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A. Fruit

B. Ovule

C. Embroyo sac

D. Seed

139. A series of hypothesis supported by the results of many tests is called ?
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A. Theory

B. Data

C. Scientific law

D. Deduction

140. Immunization by vaccination was ?rst introduced by?
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A. Edward Jenner in 1795

B. Fleming in 1945

C. Florey & Chain in 1975

D. Flore & Chain in 1795