Human Health & Diseases Test

Question 1
4 / -1

Identify the marking A, B, C and D in the figure given below and select the correct option.

A
A-light chain, B- heavy chain, C- antigen binding sites, D- disulphide bonds.

B
A - disulphide bonds, B- antigen binding site, C- heavy chains, D- light chains

C
A-antigen binding sites, B- light chain, C- heavy chains, D- disulphide bonds

D
A- antigen binding sites, B- disulphide bonds, C- light chains, D- heavy chains

Question 2
4 / -1

Read the given statements carefully.
(i) Innate immunity is a specific type of defence, that is present at the time of birth.
(ii) Malignant malaria is caused by Plasmodium falciparum.
(iii) Malaria could be confirmed by Widal test.
(iv) Active immunity is slow and takes time to give its full effective response.
(v) Saliva in the mouth acts as physiological barrier for pathogens.
Which of the above statements are correct?

A
(ii), (iv) and (v)

B
(i) and (iii)

C
(i) and (v)

D
(ii), (iii) and (v)

Question 3
4 / -1

Which of the following components does not participate in innate immunity?

A
Neutrophils

B
Macrophages

C
B-lymphocytes

D
Natural killer cells

Question 4
4 / -1

Use of vaccines and immunisation programmes have controlled which of the following infectious diseases?

A
Polio and tetanus

B
Diphtheria and pneumonia

C
Cancer and AIDS

D
Both (a) and (b)

Question 5
4 / -1

The first line of defence in the immune system is provided by

A
skin and mucous membrane

B
inflammatory response

C
the complement system

D
none of these

Question 6
4 / -1

An antibody consists of

A
two light peptide chains and two heavy peptide chains

B
two light peptide chains and one heavy peptide chain

C
one light peptide chain and one heavy peptide chain

D
one light peptide chain and two heavy peptide chains

Question 7
4 / -1

Hepatitis B vaccine is produced from

A
inactivated virus

B
yeast

C
haemophilus influenzae

D
salmonella typhimurium

Question 8
4 / -1

The most abundant antibody produced against allergens is

A
lgE

B
IgA

C
IgC

D
IgM

Question 9
4 / -1

Antibodies are secreted by

A
T lymphocytes

B
B lymphocytes

C
Both A and B

D
Natural killer cells

Question 10
4 / -1

Primary response produced due to first time encounter with a pathogen is of

A
high intensity

B
low intensity

C
intermediate intensity

D
no intensity

Question 11
4 / -1

Humoral immunity is associated with

A
T-cells

B
B-cells

C
Macrophages

D
Both (a) and (b)

Question 12
4 / -1

Select the correct statements regarding the characteristics of acquired immunity.
(i) Cell-mediated immunity is responsible for acquired immunity.
(ii) It produces a primary response of low intensity.
(iii) Active and passive immunity are types of acquired immunity.
(iv) Polymorphonuclear leucocytes and natural killer cells are involved in acquired immunity.

A
(i), (ii) and (iii)

B
(i), (iii) and (iv)

C
(i) and (iv)

D
(i) and (iii)

Question 13
4 / -1

Read the following statements regarding spleen and select the correct option.
(i) Spleen is a large bean-shaped organ which mainly contains lymphocytes and phagocytes.
(ii) Spleen is a large reservoir of erythrocytes.
(iii) Spleen is a primary lymphoid organ.
(iv) Spleen acts as a filter of the blood by trapping blood-borne microorganisms.

A
(i) and (ii)

B
(ii) and (iv)

C
(i), (ii) and (iii)

D
(i), (ii) and (iv)

Question 14
4 / -1

Which one of the following immune system components does not correctly match with its respective role?

A
Interferons - secreted by virus-infected cells and protect non-infected cells from further viral infection

B
B- lymphocytes - produce antibodies in response to pathogens into blood to fight with them

C
Macrophages - mucus secreting cells that trap microbes entering in the body

D
IgA - present in colostrum in early days of lactation to protect infant from diseases

Question 15
4 / -1

An auto-immune disease is

A
SCID

B
rheumatoid athritis

C
myasthenia gravis

D
both (b) and (c)

Question 16
4 / -1

Which out of the following groups represent auto immune disorders?

A
SCID and diphtheria

B
Diabetes mellitus (type 1) and rheumatic fever

C
AIDS and cholera

D
Hepatitis and leukaemia

Question 17
4 / -1

Passive immunity can be conferred directly by

A
vaccines

B
antitoxins

C
colostrum

D
both (b) and (c)

Question 18
4 / -1

Which form of pathogen is used in vaccination?

A
Activated and strong pathogenic antigens

B
Inactivated and weakened pathogenic antigens

C
Hyperactive and strong pathogen

D
Preformed antibodies

Question 19
4 / -1

The antibody which can cross placental barrier is

A
IgA

B
IgE

C
IgM

D
IgG

Question 20
4 / -1

Which of the following cells actively participate during allergy?

A
B-lymphocytes

B
Liver cells

C
Mast cells

D
Red blood cells

Question 21
4 / -1

Given below is the diagram of human lymphatic system, where A, B, C and D are lymphoid organs. Select incorrect option regarding the lymphoid organs labelled as A, B, C and D.

A
T cells mature in B

B
B and T cells undergo maturation in C

C
B and T cells undergo proliferation and differentiation in A

D
B cells mature in D

Question 22
4 / -1

Which of these glands is large at the time of birth but in adults, it reduces to a very small size?

A
Thyroid

B
Adrenal

C
Thymus

D
Spleen

Question 23
4 / -1

Which of the following statements regarding different barriers of innate immunity is not correct?

A
Acid present in the stomach, saliva in the mouth, tears from the eyes prevent the growth of microorganisms and constitute physiological barriers of our body

B
Mucous membrane lining the respiratory, gastrointestinal and urinogenital tracts helps in trapping the microbes and constitute physiological barriers of our body

C
Certain types of leucocytes such as polymorpho nuclear leucocytes (PMNL-neutrophils) and lymphocytes such as natural killer cells, constitute cellular barriers of our body

D
Virus-infected cells secrete proteins called interferons which protect non-infected cells from further viral infection and constitute cytokine barriers of our body

Question 24
4 / -1

Vaccine against polio viruses is an example of

A
auto-immunization

B
passive immunization

C
active immunization

D
simple immunization

Question 25
4 / -1

The antigen binding site of an antibody is present at

A
the constant region

B
the C-terminal

C
the variable region

D
between constant and variable region

Submit Test

Human Health & ...

Question 1

A-light chain, B- heavy chain, C- antigen binding sites, D- disulphide bonds.

A - disulphide bonds, B- antigen binding site, C- heavy chains, D- light chains

A-antigen binding sites, B- light chain, C- heavy chains, D- disulphide bonds

A- antigen binding sites, B- disulphide bonds, C- light chains, D- heavy chains

Question 2

(ii), (iv) and (v)

(i) and (iii)

(i) and (v)

(ii), (iii) and (v)

Question 3

Neutrophils

Macrophages

B-lymphocytes

Natural killer cells

Question 4

Polio and tetanus

Diphtheria and pneumonia

Cancer and AIDS

Both (a) and (b)

Question 5

skin and mucous membrane

inflammatory response

the complement system

none of these

Question 6

two light peptide chains and two heavy peptide chains

two light peptide chains and one heavy peptide chain

one light peptide chain and one heavy peptide chain

one light peptide chain and two heavy peptide chains

Question 7

inactivated virus

yeast

haemophilus influenzae

salmonella typhimurium

Question 8

lgE

IgA

IgC

IgM

Question 9

T lymphocytes

B lymphocytes

Both A and B

Natural killer cells

Question 10

high intensity

low intensity

intermediate intensity

no intensity

Question 11

T-cells

B-cells

Macrophages

Both (a) and (b)

Question 12

(i), (ii) and (iii)

(i), (iii) and (iv)

(i) and (iv)

(i) and (iii)

Question 13

(i) and (ii)

(ii) and (iv)

(i), (ii) and (iii)

(i), (ii) and (iv)

Question 14

Interferons - secreted by virus-infected cells and protect non-infected cells from further viral infection

B- lymphocytes - produce antibodies in response to pathogens into blood to fight with them

Macrophages - mucus secreting cells that trap microbes entering in the body

IgA - present in colostrum in early days of lactation to protect infant from diseases

Question 15

SCID

rheumatoid athritis

myasthenia gravis

both (b) and (c)

Question 16

SCID and diphtheria

Diabetes mellitus (type 1) and rheumatic fever

AIDS and cholera