Part-B (General Ability) NDA/NA Solved Paper 2017-I

General Knowledge

Total Questions: 50

11. Glass is a

Correct Answer: (c) non-crystalline amorphous solid

12. Cell wall of any fungus is different from plants in having

Correct Answer: (b) chitin
Solution:

The cell wall of a fungus is made up of a three-part matrix of chitin, glucans, and proteins. One ofthe main differences between plants and fungi is that fungi have chitin as a component of their cell walls instead of cellulose. Both chitin and cellulose are comprised of polysaccharide chains.

13. Sleeping sickness is a parasitic disease of humans and other animals. It is caused by

Correct Answer: (b) Trypanosoma
Solution:

Trypanosoma is a genus of kinetoplastids, a monophyletic group of unicellular parasitic flagellate protozoa. Trypanosomes infect a variety of hosts and cause various diseases, including the fatal human diseases sleeping sickness. Sleeping sickness is an insect-born parasitic disease of human and other animals.

14. Which one of the following agencies enforces the laws on food security in India?

Correct Answer: (c) FSSAI
Solution:

The Food Safety and Standards Authority of India (FSSAI) has been established under the Food Safety and Standards Act, 2006 which is a consolidating statute related to food safety and regulation in India. It is
responsible for protecting and promoting public health through the regulation and supervision of food safety.

15. Dengue virus causes high fever, rashes and reduces the number of a particular type of blood cells. Those blood cells are

Correct Answer: (b) Platelets
Solution:

Dengue virus (DENV) is the cause of dengue fever. It is a mosquito-borne single positive-stranded RNA virus of the family Flaviviridae; genus Flavivirus. This virus causes bone marrow suppression leading to reduction in number of blood platelets. A typical person has a platelet count of between 150,000and 250,000 per microlitre ofblood. About
80 to 90 per cent of patients with dengue will have levels below 100,000, while 10 to 20 per cent of patients will see critically low levels of 20,000 or less.

16. Kidney secretes an enzyme, which changes plasma protein angiotensinogen into angiotensin. The enzyme is

Correct Answer: (a) Renin
Solution:

Renin is an aspartic protease protein and enzyme secreted by the kidneys. Renin is a proteolytic enzyme that cleaves to. the circulating substrate angiotensinogen to form angiotensin I, which has little
intrinsic pharmacologic activity.

17. Red blood cells (RBCs) have

Correct Answer: (a) no nucleus, no mitochondria and no endoplasmic reticulum
Solution:

Red blood cells (RBCs) are cells that circulate in the blood and carry oxygen throughout the body. It is also called erythrocytes. Red blood cells (RBCs) have no nucleus, no mitochondria and no endoplasmic
reticulum. Hemoglobin is the protein inside red blood cells. It carries oxygen. Red blood cells also remove carbon dioxide from human body. Foods rich in iron help you maintain healthy red blood cells. Vitamins are
also needed to build healthy red blood cells.

18. According to the Census 2011, the density of population in which one among the following States in the lowest?

Correct Answer: (d) Mizoram
Solution:

According to the Census 2011, Mizoram is the 2nd least populous State in the country.

19. Headquarters of the World Meteorological Organization is Jocated in

Correct Answer: (b) Geneva

20. Match List I List II and select the correct answer using the code given below the Lists:

Correct Answer: (a)