biology MCQs – Page 6

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 Review each marked answer and report any item that may be outdated or unclear.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
101. The experiments on DNA molecules in chromosomes for knowing the basis of inherited diseases are conducted by ?
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A. Freshwater biologists

B. Molecular biologists

C. Social biologist

D. Microbiologists

102. Which one is not correct for a productive theory________?
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A. It discourages suggestion of different hypotheses

B. None of these

C. It is predictive

D. It has explanatory power

103. Biological sciences have a set methodology and it is based on ?
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A. Imaginations

B. Philosophical ideas

C. Experimental inquiry

D. Esthetic preference

104. Amphibians are considered to be evolved from___________?
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A. Newts

B. Hagfishes

C. Dipnoi

D. Varanope

105. Various tissue types combine to make up__________?
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A. Organelles

B. Organs

C. Cells

D. Organ System

106. The concept that various organisms dominated this planet during various geological time period and thus placing organisms in a time squence came from the studies by________?
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A. Marine biologist

B. Social biologist

C. Environmental biologist

D. Paleontologist
107. A chemical substance that reacts with enzyme but is not transformed into product and thus blocking active site is called__________?
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A. Substrate

B. Inhibitor

C. Promotor

D. Co-factor

108. The mechanism for ATP synthesis is_____________?
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A. Chemosynthesis

B. Photosynthesis

C. Phosphorylation

D. Chemiosmosis
109. The average internal temperature of human body is __________?
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A. 37 oC

B. 35 oC

C. 36 oC

D. 38 oC

110. Biometry is the application of_______ in biology.
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A. Matrix

B. Algebra

C. Statistics

D. Geometry

111. The branch of biology which deals with the study of social behavior and communal life of human beings living in any environment is called ?
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A. Environmental biology

B. Social biology

C. Human biology

D. Both b and c

112. A structure formed by groups of similar cells organized into loose sheets or bundles performing similar functions is called as:
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A. A Tissue

B. An organism

C. An organ

D. A Cell

113. The branch of Biology which deals with the use of data and techniques of engineering & technology concerning living organisms is:
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A. Bio-technology

B. Environmental Biology

C. Human Biology

D. Genetics

114. Sythetic insulin from pork was formed by which technique?
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A. Biotechnology

B. Social biological techniques

C. Parasitology

D. Both a and c

115. Salivary glands present in front of ear are___________?
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A. Submaxillary

B. Sublingual

C. Parotid

D. Submandibular

116. Lactometerisusedfor__________?
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A. Honey

B. Ship

C. None

D. Milk
117. Human blood is an example of__________?
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A. Inorganic compounds

B. Tissues

C. Organic compound

D. Organelle

118. enzyme is_____________?
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A. one of these

B. io catalyst

C. ormone

D. Gland

119. The scientific study of livings is called?
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A. Biology

B. Zoology

C. Anatomy

D. Geology

120. Which of the following statement is incorrect about antibiotics?
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A. They are used in diseases like tuberculosis and pneumonia

B. They are derived from bacteria only

C. They are used against microorganisms

D. They are always effective against bacteria