biology Mcqs
151. Conclusion of Mendels work latter became a_____________?
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A. Theory

B. Productive theory

C. Scientific law

D. Scientific hypothesis

152. The Science of growing terrestrial plants in an aerated solution is_________?
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A. Hydrodynamics

B. Hydroponics

C. Hydrotonics

D. None of them

153. A-biogenesis means that_____________?
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A. Mycobionts

B. Living things originated from bacteria

C. Non-living things

D. None of these

154. Who is Called the Father of Demography?
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A. John Dalton

B. Charles Babbage

C. IBN KHALDUN

D. ALAN Turing

155. Control of organisms by using living organisms is called_______?
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A. Antisepsis

B. Biological control

C. Bioremediation

D. Integrated disease management

156. Ribosomes were discovered by_______?
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A. Palade

B. Golgi

C. R.Brown

D. De Duve

157. Initial pH of food vacuole during digestion in amoeba is____________?
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A. 7.3

B. 7.6

C. 5.6

D. 5.3

158. Members of one species inhabiting the same are form__________?
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A. Community

B. Ecosystem

C. Population

D. Species

159. __________ is essential for the formation of hemoglobin.
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A. Carbohydrates

B. Water

C. Calcium

D. Iron
160. 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. Paleontologist

B. Marine biologist

C. Environmental biologist

D. Social biologist

161. Water has maximum density at____________?
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A. 0C

B. 4C

C. 4 K

D. 4.8C

162. Study of insects is called_________?
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A. Parasitology

B. Entomology

C. Immunology

D. Paleontology

163. In human body 99% of total mass is formed of_____________?
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A. 12 Bio-elements

B. 6 Bio-elements

C. 10 Bio-elements

D. 16 Bio-elements

164. Different species of plants and animals living in the same habitat is called ___________?
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A. Community

B. Habitat

C. Population

D. Biome

165. Pollen grains in pinus have __________ for dispersal through wind?
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A. Feathers

B. Wings

C. Flagella

D. Cilia

166. The atoms of different elements combine with each other through ionic or covalent bonding to produce compounds this stable form is called:
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A. An organ

B. A molecule

C. Tissue

D. Both a and c

167. An infectious disorder of respiratory system is_________________?
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A. Tuberculosis

B. Emphysema

C. Cancer

D. Asthma

168. Which Vitamin is needed for the formation of a light-sensitive pigment in the retina.
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A. Vitamin A

B. B complex

C. Vitamin C

D. Vitamin D

169. The evaporative cooling in the respiratory tract of dogs is called?
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A. All of these

B. Vasoconstriction

C. Vasodilation

D. Panting
170. Capillaries are the example of_________?
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A. Organ System

B. Tissue

C. Cell

D. Organ

171. A structure formed by groups of similar cells organized into loose sheetsor bundles performing similar functions is called as________?
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A. An organ

B. An organism

C. A Tissue

D. A Cell

172. Different species of plants and animals living in the same habitat is called?
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A. Community

B. Population

C. Biome

D. Habitat

173. Breakdown of large molecules into smaller ones utilizing water molecules is_________?
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A. Hydrolysis

B. Hydration

C. Electrolysis

D. Dehydration synthesis

174. The number of species of organisms currently known to science is?
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A. 2500000

B. 3500000

C. 35000

D. 25000000

175. Mitosis is divided into_____________?
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A. Karyokinesis

B. Cytokinesis

C. Interphase

D. Both a & b
176. Which of the following is the correct sequence in the biological method?
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A. Observation?hypothesis?law?theory

B. law?theory?deduction?observation

C. Observation?hypothesis?deduction?testing of deduction

D. Hypothesis?observation?deduction?testing of deduction

177. Out of 92 naturally occurring chemical elements how many are considered as bio-elements__________?
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A. 6

B. 16

C. 26

D. 15

178. Which of the following is an example of molecule?
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A. Chloroplast

B. Hydrogen

C. DNA

D. A Nerve Cell

179. Which is an organic compound found in most cells ?
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A. Water

B. Glucose

C. Sodium chloride

D. Oxygen

180. Dolly, the sheep was a highly successful clone from a somatic cell, reported back in________?
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A. 1996

B. 1994

C. 1993

D. 1995

181. The branch in which organisms life cycle, mode of transmission and interaction with their hosts are studied is:
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A. Social Biology

B. Physiology

C. Parasitology

D. Anatomy

182. The process involved in inflammation of liver___________?
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A. apoptosis

183. The study of nature is called__________?
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A. Science

B. Molecule

C. Element

D. Atom

184. Virus consist of Parts:__________?
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A. 1

B. 4

C. 2

D. 3

185. Which of the following is not a viral disease?
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A. Small pox

B. Tetanus

C. Cowpox

D. Mumps

186. Animals of which class of arthropoda are present everywhere_____________?
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A. Arachnida

B. Crustacean

C. Insecta

D. Myriapoda

187. Astronauts may use which technique to grow fruits and vegetables ?
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A. Hydroponic culture technique

B. Tissue culture techniques

C. Pasterisation

D. Cloning

188. Gaseous exchange in birds occurs at level of_______________?
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A. Parabronchi

B. Air sacs

C. Alveoli

D. Bronchi

189. 7 Secretions are products formed within cell on__________?
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A. Golgi bodies

B. E.R

C. Nucleus

D. Ribosome

190. A group of very similar inter breeding organisms constitutes?
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A. Biosphere

B. Species

C. Population

D. Ecosystem

191. Blood is carried towards the heart by __________?
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A. Capillaries

B. none of these

C. Arteries

D. Veins
192. Which of the following pathogen type cause disease that can be treated with antibiotics ?
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A. virus

B. none of these

C. fungi

D. bacteria
193. Normally, in the process of osmosis, the net flow of water molecules into or out of the cell depends upon differences in the ?
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A. None of these

B. Rate of molecular motion on either side of the cell membrane

C. Concentration of enzymes on either side of the cell membrane

D. Concentration of water molecules inside and outside the cell
194. Biologist Grass discovered the life cycle of plasmodium in_______?
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A. 1898

B. 1897

C. 1899

D. 1896

195. Nitrogen is present in___________?
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A. carbonates

B. proteins

C. lipids

D. carbohydrates

196. The one which is present in all living things
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A. Cell nucleus

B. Vacuole

C. Cell membrane

D. DNA or RNA
197. The Study of organisms inhabiting the sea and Ocean and the physical and chemical characteristics of their environment is:
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A. Social Biology

B. Environmental Biology

C. Marine Biology

D. Fresh Water Biology

198. Density gradient centrifugation separates the materials on the basis of__________?
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A. Size alone

B. Density alone

C. Both a & b

D. Velocity of movement

199. The experiments on DNA molecules in chromosomes for knowing the basis of inherited diseases are conducted by________?
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A. Social biologist

B. Microbiologists

C. Molecular biologists

D. Freshwater biologists

200. The ?rst antibiotic to be discovered was_____________?
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A. Penicillin

B. Cephalosporin

C. Erythromycin

D. Amino glycosides