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Solved Biology MCQs for Competitive Exams

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Solved Biology MCQs for Competitive Exams

This post also belongs to Biology MCQs series. If you are looking for NTS test Online preparation then you can try these questions too. This post contains Solved Biology MCQs for Competitive Exams. Students are welcome to practice these Multiple Choice General Knowledge Questions. MCQs are from Caravan General Knowledge Book. For more similar Questions Visit This Page.

Biology Question Bank Online for Competitive Exams and Entry Test in Medical Colleges

206. Penicillin is ________.

(a) Vitamin
(b) Hormone
(c) Antibiotic
(d) Analgesic

(c) Antibiotic

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

(c) As a defence against infection

208. Saliva contains?

(a) Amylases
(b) Bite
(c) Vitamins
(d) Trypsin

(a) Amylases

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

(a) Iron in heme pigment

210. Insulin in the human body is produced in _____.

(a) Liver
(b) Kidney
(c) Pancreas
(d) None of these

(c) Pancreas

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

(c) Mendel

212. Turnip is a root described as___________.

(a) Napiform
(b) Fusiform
(c) Conical
(d) Tuberous

(a) Napiform

213. Which are the basic building blocks of proteins?

(a) Oxalic acids
(b) Amino Acids
(0) Carbolic acid
(d) Sodium carbonate

(b) Amino Acids

214. What connects the small brain with the spinal cord?

(a) Cerebellum
(b) Medulla Oblongata
(c) Thalamus
(d) Cerebrum

(b) Medulla Oblongata 

215. What is the diploid number of man’s chromosomes?

(a) 46
(b) 48
(c) 62
(d) 74

(a) 46 

216. Which is the most abundant element in the human body?

(a) Carbon Dioxide
(b) Nitrogen
(c) Hydrogen
(d) Oxygen

(d) Oxygen 

217. Which is the most abundant mineral in the human body?

(a) Potassium
(b) Calcium
(c) Sodium
(d)  Magnesium

(b) Calcium

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

(c) decrease in thickness of ozone layer in stratosphere

219. Where from plants receive nutrients mainly?

(a) ligh
(b) chlorophyll
(c) soil
(d) atmosphere

(c) soil

220. What is Radish?

(a) modified root
(b) bulb
(c) conn
(d) tuber

(a) modified root

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