GK in English

GK Chapterwise – CDS Previous Year Papers

Table of Contents

181. Plants contain a variety of sterols like stigmasterol, ergosterol, sitosterol etc. which very closely resemble cholesterol. These plant sterols are referred as:

(b) Caleiferols
(c) Ergocaleiferols
(d) Lumisterols
Ans: (a)

CDS (I) 2010

182. Most antibiotics target bacterial parasites interfering with various factors of growth of metabolism such as
1. synthesis of cell wall
2. bacterial protein Synthesis
3. synthesis of nuclear membrane
4. mitochondrial function Select the correct answer using the code given below

(a)1, 2 and 3
(b) 1 and 4
(c) 2 and 3 only
(d) 1 and 2 only
Ans: (d)
CDS Exam (I) 2015

183. Penicillin inhibits synthesis of bacterial

(a)cell wall
(b) protein
(c) RNA
(d) DNA
Ans: (b)

CDS (I) 2011

184. The mandate of the scheme entitled ‘Directly Observed Treatment, Short-Course (DOTS)’ launched by WHO is to ensure that

(a)doctors treat patients with medicine for a short duration
(b) doctors do not start treatment without a trial
(c) patients complete their course of drug
(d) patients voluntarily take vaccines
Ans: (c)

CDS (II) 2013

185. Neutrophils and lymphocytes originate from

(a)kidney tubule
(b) spleen
(c) bone marrow
(d) lymph node
Ans: (c)
CDS Exam (II) 2017

186. Glucose is a source of energy. Which one of the following types of molecule is glucose ?

(b) Protein
(c) Fat
(d) Nucleic acid
Ans: (a)
CDS Exam (I) 2015

187. Vitamin B12 deficiency causes pernicious anemia, Animals cannot synthesize vitamin B12. Humans must obtain all their vitamin B12 from their diet. The complexing metal ion in vitamin B12 is:

(a)Mg2+ (Magnesium ion)(b) Fe2+ (Iron ion)
(c) Co3+(Cobalt ion)
(d) Zn2+(Zine ion)
Ans: (c)

CDS (I) 2019

188. Which one of the following vitamins has a role in blood clotting ?

(a)Vitamin A
(b) Vitamin B
(c) Vitamin D
(d) Vitamin K
Ans: (d)

CDS (II) 2012

189. Genetically modified (GM) crops contain modified genetic material due to:
1. introduction of new DNA
2. removal of existing DNA
3. introduction of RNA
4. introduction of new traits Select the correct answer using the code given below:

(a)1 and 2 only
(b) 1, 2 and 3
(c) 3 and 4
(d) 1,2 and 4
Ans: (d)
CDS Exam (II) 2007

190. In artificial insemination (AI) process. Which of the following is/are introduced into the uterus of the female ?

(a)Egg only
(b) Fertilized egg
(c) Sperm only
(d) Egg and sperm
Ans: (c)

CDS (II) 2009

191. The Germplasm is required for the propagation of plants and animals, Germplasm is the:
1. genetic resources
2. seeds or tissues for breeding
3. egg and sperm repository
4. a germ cell’s determining zone Select the correct answer using the code given below

(a)1 only
(b) 1, 2 and 3
(c) 2 and 3 only
(d) 2 and 4
Ans: (b)

CDS (I) 2018

192. Which of the following pairs of vitamin and disease is / are correctly matched ?
1. Vitamin A A Rickets
2. Vitamin B1 B Beribri
3. Vitamin C C Scurvy Select the correct answer using the code given below:

(a)2 only
(b) 2 and 3 only
(c) 1 and 3 only
(d) 1, 2 and 3
Ans: (b)

CDS (II) 2016

193. Which one of the following is considered as ‘good cholesterol’ with reference to individuals facing the risk of cardio-vascular diseases and hypertension?

(a)High Density Lipoprotein (HDL)
(b) Low Density Lipoprotein(LDL)
(c) Triglyceride
(d) Fatty acids
Ans: (a)
CDS Exam (II) 2008

194. Which one of the following hormones contains peptide chain ?

(b) Corticotropin
(c) Insulin
(d) Cortisone
Ans: (c)

CDS (II) 2010

195. The living content of cell is called protoplasm. It is composed of:

(a)Cytoplasm only
(b) Cytoplasm and nucleoplasm
(c) Nucleoplasm only
(d) Cytoplasm, nucleoplasm and other organelles
Ans: (d)

CDS (I) 2015

196. An irregular mode of reproduction resulting in the development of an embryo without fertilization is called
1. Parthenogenesis
2. Apogamy
3. Sporophytic budding Select the correct answer using the code given below.

(a)1 only
(b) 2 only
(c) 2 and 3 only
(d) 1, 2 and 3
Ans: (d)

CDS (II) 2011

197. Which one of the following air pollutants combines with the haemoglobin of human blood and reduces its oxygencarrying capacity, leading to suffocation and may cause even death?

(b) Fly ash
(c) Carbon monoxide
(d) Sulphur dioxide
Ans: (c)
CDS Exam (II) 2013

198. The HIV virus weakens the immunity of a person because it destroys

(a)mast cells
(b) platelets
(c) erythrocytes
(d) lymphocytes
Ans: (d)

CDS (II) 2017

199. Which one of the following is most sensitive to environmental change?

(b) Reptile
(c) Mammal
(d) Insect
Ans: (a)

CDS (I) 2015

200. Dengue virus is known to cause low platelet count in blood of patient by:
1. interfering in the process of platelet production in bone marrow
2. infecting endothelial cells
3. binding with platelets
4. accumulating platelets in intestine Select the correct answer using the code given below:

(a)1 and 2 only
(b) 1 and 3 only
(c) 3 and 4
(d) 1, 2 and 3
Ans: (d)
CDS Exam (I) 2019

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