Solved Biology MCQs for Competitive Exams
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Biology Question Bank Online for Competitive Exams and Entry Test in Medical Colleges
206. Penicillin is ________.
(a) Vitamin
(b) Hormone
(c) Antibiotic
(d) Analgesic
[bg_collapse view=”button-orange” color=”#4a4949″ expand_text=”Show Answer” collapse_text=”Hide Answer” ] (c) Antibiotic[/bg_collapse]
207. White blood cells act?
(a) As a source of energy
(b) For blood clotting
(c) As a defence against infection
(d) As a medium for oxygen transport from lungs to tissues
[bg_collapse view=”button-orange” color=”#4a4949″ expand_text=”Show Answer” collapse_text=”Hide Answer” ] (c) As a defence against infection[/bg_collapse]
208. Saliva contains?
(a) Amylases
(b) Bite
(c) Vitamins
(d) Trypsin
[bg_collapse view=”button-orange” color=”#4a4949″ expand_text=”Show Answer” collapse_text=”Hide Answer” ] (a) Amylases[/bg_collapse]
209. Redness in blood is because of the presence of_____.
(a) Iron in heme pigment
(b) Haemoglobin
(6) Copper in heme pigment
(d) All of these
[bg_collapse view=”button-orange” color=”#4a4949″ expand_text=”Show Answer” collapse_text=”Hide Answer” ] (a) Iron in heme pigment[/bg_collapse]
210. Insulin in the human body is produced in _____.
(a) Liver
(b) Kidney
(c) Pancreas
(d) None of these
[bg_collapse view=”button-orange” color=”#4a4949″ expand_text=”Show Answer” collapse_text=”Hide Answer” ] (c) Pancreas[/bg_collapse]
Also visit – General Knowledge Questions of Biology with Answers
211. Laws of Heredity were discovered by ________.
(a) Borpamin Franklin
(b) Darwin
(c) Mendel
(d) None
[bg_collapse view=”button-orange” color=”#4a4949″ expand_text=”Show Answer” collapse_text=”Hide Answer” ] (c) Mendel[/bg_collapse]
212. Turnip is a root described as___________.
(a) Napiform
(b) Fusiform
(c) Conical
(d) Tuberous
[bg_collapse view=”button-orange” color=”#4a4949″ expand_text=”Show Answer” collapse_text=”Hide Answer” ] (a) Napiform[/bg_collapse]
213. Which are the basic building blocks of proteins?
(a) Oxalic acids
(b) Amino Acids
(0) Carbolic acid
(d) Sodium carbonate
[bg_collapse view=”button-orange” color=”#4a4949″ expand_text=”Show Answer” collapse_text=”Hide Answer” ] (b) Amino Acids[/bg_collapse]
214. What connects the small brain with the spinal cord?
(a) Cerebellum
(b) Medulla Oblongata
(c) Thalamus
(d) Cerebrum
[bg_collapse view=”button-orange” color=”#4a4949″ expand_text=”Show Answer” collapse_text=”Hide Answer” ] (b) Medulla Oblongata [/bg_collapse]
215. What is the diploid number of man’s chromosomes?
(a) 46
(b) 48
(c) 62
(d) 74
[bg_collapse view=”button-orange” color=”#4a4949″ expand_text=”Show Answer” collapse_text=”Hide Answer” ] (a) 46 [/bg_collapse]
216. Which is the most abundant element in the human body?
(a) Carbon Dioxide
(b) Nitrogen
(c) Hydrogen
(d) Oxygen
[bg_collapse view=”button-orange” color=”#4a4949″ expand_text=”Show Answer” collapse_text=”Hide Answer” ] (d) Oxygen [/bg_collapse]
217. Which is the most abundant mineral in the human body?
(a) Potassium
(b) Calcium
(c) Sodium
(d) Magnesium
[bg_collapse view=”button-orange” color=”#4a4949″ expand_text=”Show Answer” collapse_text=”Hide Answer” ] (b) Calcium[/bg_collapse]
218. Ozne hole refers to _______
(a) decrease in the ozone layer in traoposphere
(b) increase in the thickness of ozone layer in troposphere
(c) decrease in thickness of ozone layer in stratosphere
(d) hole in ozone layer
[bg_collapse view=”button-orange” color=”#4a4949″ expand_text=”Show Answer” collapse_text=”Hide Answer” ] (c) decrease in thickness of ozone layer in stratosphere[/bg_collapse]
219. Where from plants receive nutrients mainly?
(a) ligh
(b) chlorophyll
(c) soil
(d) atmosphere
[bg_collapse view=”button-orange” color=”#4a4949″ expand_text=”Show Answer” collapse_text=”Hide Answer” ] (c) soil[/bg_collapse]
220. What is Radish?
(a) modified root
(b) bulb
(c) conn
(d) tuber
[bg_collapse view=”button-orange” color=”#4a4949″ expand_text=”Show Answer” collapse_text=”Hide Answer” ] (a) modified root[/bg_collapse]
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