Test : Biology - 1


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20 Questions MCQ Test NDA (National Defence Academy) Mock Test Series | Test : Biology - 1

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Test : Biology - 1 - Question 1

Q1. Match List-I and List-II and select the correct answer by using the code given below

—List-I List-II

A.Vitamin  1.Pepsin

B.Enzyme  2.Carotene

C.Hormone   3.Keratin

D.Protein  4.Progesterone

Code: A  B  C    D  

Test : Biology - 1 - Question 2

Which of the following elements are present in all protein—?

1. Carbon

2. Hydrogen

3. Oxygen

4. Nitrogen

Code–

Detailed Solution for Test : Biology - 1 - Question 2

Proteins are composed of molecules called amino acids, and each amino acid contains four elements: hydrogen, oxygen, nitrogen, and carbon.

Test : Biology - 1 - Question 3

Deficiency of which of the following causes Xerophthalmia—

Detailed Solution for Test : Biology - 1 - Question 3

Xerophthalmia caused by a severe vitamin A deficiency is described by pathologic dryness of the conjunctiva and cornea. The conjunctiva becomes dry, thick and wrinkled. If untreated, it can lead to corneal ulceration and ultimately to blindness as a result of corneal damage.

Test : Biology - 1 - Question 4

Which of the following disease is not caused by viruses? 

Detailed Solution for Test : Biology - 1 - Question 4

Cholera is an acute epidemic infectious disease. It is characterized by watery diarrhea, extreme loss of fluid and electrolytes, and severe dehydration. It is caused by the bacterium Vibrio cholera (V. cholera).

Test : Biology - 1 - Question 5

Which of the following is involved in controlling blood sugar level?

Detailed Solution for Test : Biology - 1 - Question 5

The islets of Langerhans are responsible for the endocrine function of the pancreas. The inability of the islet cells to make insulin or the failure to produce amounts sufficient to control blood glucose level is the causes of diabetes mellitus. They are named for the German physician Paul Langerhans, who first described them in 1869. The normal human pancreas contains about 1,000,000 islets.

Test : Biology - 1 - Question 6

Which of the following are water-borne diseases?

1. Viral hepatitis

2. Cholera

3. Typhoid fever

4. Amoebiasis

Select the answer using code given below—

Detailed Solution for Test : Biology - 1 - Question 6

 Waterborne diseases are conditions caused by pathogenic micro-organisms that are transmitted in water. A disease can be spread while bathing, washing or drinking water, or by eating food exposed to infected water.

Test : Biology - 1 - Question 7

Carrot is the good source of —

Detailed Solution for Test : Biology - 1 - Question 7

The vitamin A in carrot comes in the form of beta-carotene, a healthy antioxidant. Eating plenty of carrots every day can improve your vision greatly.

Test : Biology - 1 - Question 8

Blood pressure is controlled by the hormone.

Detailed Solution for Test : Biology - 1 - Question 8

Antidiuretic hormone or vasopressin acts on renal collecting ducts via V2 receptors to increase water permeability which leads to decreased urine formation.T his increases blood volume, cardiac output, and arterial pressure.

Test : Biology - 1 - Question 9

Among following which one is the highest source of ascorbic acid?  

Detailed Solution for Test : Biology - 1 - Question 9

Guavas are an excellent source of vitamin C, with one fruit providing 280 percent of the daily value for this nutrient. A guava will also provide you with 15 percent of the daily value for vitamin A and smaller amounts of niacin, vitamin B-6, thiamine, and riboflavin.

Test : Biology - 1 - Question 10

Which of the following part of blood carries out the function of body defense? 

Detailed Solution for Test : Biology - 1 - Question 10

The white blood cell, also called leukocyte or white corpuscle, a cellular component of the blood that lacks hemoglobin, has a nucleus, is capable of motility, and defends the body against infection and disease by ingesting foreign materials and cellular debris, by destroying infectious agents and cancer cells, or by producing antibodies.

Test : Biology - 1 - Question 11

Which one of the following glands in human body enlarged due to goiter? 

Detailed Solution for Test : Biology - 1 - Question 11

A goiter or goiter is a swelling in the neck resulting from an enlarged thyroid gland. The disease was later named after Irish doctor Robert James Graves, who described a case of goiter with exophthalmos in 1835

Test : Biology - 1 - Question 12

Deficiency of which one of the following causes knock-knee, bow legs, and pigeon chest in children? 

Detailed Solution for Test : Biology - 1 - Question 12

Vitamin D is essential for strong bones because it helps the body use calcium from the diet. Traditionally, vitamin D deficiency has been associated with rickets, a disease in which the bone tissue doesn't properly mineralize, leading to soft bones and skeletal deformities.

Test : Biology - 1 - Question 13

Which one of the following is responsible for blue baby Syndrome? 

Detailed Solution for Test : Biology - 1 - Question 13

Nitrates in drinking water. A sort of "blue baby syndrome" can also be caused by methemoglobinemia. It is widely believed to be caused by nitrate contamination in groundwater resulting in decreased oxygen carrying capacity of hemoglobin in babies leading to death.

Test : Biology - 1 - Question 14

Consider the following vitamins —

1. Niacin

2. Pyridoxine

3. Riboflavin

4. Thiamine

Which of these are water-soluble vitamins —

Test : Biology - 1 - Question 15

The major component of honey is —

Detailed Solution for Test : Biology - 1 - Question 15

The major components of honey are Fructose: 38.2% Glucose: 31.3% Maltose: 7.1% Sucrose: 1.3% Water: 17.2% Higher sugars: 1.5% Ash: 0.2% Other/undetermined: 3.2%

Test : Biology - 1 - Question 16

Match List-I (Organelle) with List-II (Common names) and select the correct answer using the code given below the Lists —

Test : Biology - 1 - Question 17

The largest amount of physical and chemical molecules present in the cells is 

Test : Biology - 1 - Question 18

The richest source of vitamin A are 

Test : Biology - 1 - Question 19

Consider the following cell organelles of the organisms

I. Mitochondria

II. Chloroplasts

III. Endoplasmic reticulum

Which of the ones given above is/are semi-autonomous organelle(s)?

Test : Biology - 1 - Question 20

Consider the following statements

I. Chloroplast is known as “cell within cell organelle”.

II. Chloroplast is the largest cell organelle found in plant cells.

III. Chloroplasts have single stranded extra-chromosomal DNA.

Which of the statements given above is/are correct ? 

Detailed Solution for Test : Biology - 1 - Question 20

Correct Answer :- a

Explanation : a) A chloroplast is an organelle within the cells of plants and certain algae that is the site of photosynthesis, which is the process by which energy from the Sun is converted into chemical energy for growth.

b) The largest cellular organelle in a cell (plant or animal cell) is a nucleus.

In a plant cell, vacuoles are the largest in size.

c) Eukaryotic chloroplasts, as well as the other plant plastids, also contain extrachromosomal DNA molecules. Most chloroplasts house all of their genetic material in a single ringed chromosome, however in some species there is evidence of multiple smaller ringed plasmids.

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