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

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

141. NADH is oxidized by___________?
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A. Cytochrome b

B. Oxygen

C. Coenzyme ?

D. Glycolysis

142. What is the mode of transmission of Hepatitis virus?
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A. Aerosol

B. Unknown

C. Parentral (via blood)

D. Skin penetration

143. ___________ are needed as a source of energy for the vital activities of the body?
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A. Calcium

B. Carbohydrates

C. Water

D. Iron

144. Taking in liquid material into the cells is known as_________?
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A. Phagocytosis

B. Pinocytosis

C. Exocytosis

D. Both a and b

145. Two or more populations of different species living and interacting in the same area form
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A. Ecosystem

B. Community

C. Population System

D. Biosphere

E. Species

146. Bacteria which grow either in the presence or absence of oxygen___________?
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A. Anaerobic bacteria

B. Aerobic bacteria

C. Microaerophilic

D. Facultative bacteria
147. Which statement is incorrect for cloning?
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A. It involve methods of sexual reproduction

B. Division of a single egg into one or more separate embryos.

C. The individual is the mirror image of the parent organism

D. The nucleus of a fertilized egg is replaced by the nucleus from the cell of a fully developed individual

148. Messenger RNA is formed in_________?
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A. itochondria

B. ucleus

C. hloroplast

D. one of these

149. Smallest disease causing agents in plants are ?
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A. virion

B. mycoplasma

C. viroids

D. prions

150. Percentage of water in brain cells is_______?
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A. 20%

B. 85%

C. 65%

D. 89%