Wayground logo

Free Printable Worksheets

Font size

S
M
L
XL
Worksheets

IMMUNITY IN HUMANS

Total questions: 30

Worksheet time: 16mins

Name
Class
Date
1.

Which of the following is considered as the first line of defence of the human body?

a)

Inflammation reaction

b)

Secretion of mucus in the respiratory system

c)

Macrophages decompose bacteria through phagocytosis

d)

Secretion of histamine

2.

During inflammation, the blood capillaries become more permeable due to the existence of

a)

Monocytes

b)

Leucocytes

c)

Histamine

d)

Lysozyme

3.

One of the PHYSICAL shields of the first line of defence of the human body is

a)

Secretion of sebum of the skin

b)

Hydrochloric acid in the stomach destroys bacteria

c)

Lysozyme present in nasal mucus and saliva

d)

Continuous shedding of dead cell layers on the skin surface

4.

Antibodies are produced by

a)

All cells are possible to produce antibodies

b)

Phagocytes

c)

Histamine

d)

Lymphocytes

5.

The process by which microorganisms or other particles (eg dead cells) are trapped and digested by phagocytes is _____________

a)

Phagocytosis

b)

Inflammation

c)

Immune response

d)

Agglutination

6.

The lymphocytes are formed in

a)

Inflamed areas

b)

Lymph nodes

c)

Lysosomes

d)

Any tissues

7.

How does fever help to fight against diseases?

a)

Raises the temperature of the human body to directly kill bacteria

b)

Raises the temperature of the human body to denature the protein of bacteria

c)

Increases phagocytic activity

d)

Increases heart rate

8.

The T lymphocyte cells attack ________

a)

Antigens

b)

The pathogen

c)

Antibodies

d)

Cells infected by pathogens

9.

The combination of microorganisms, fragments of tissues and white blood cells is called

a)

Phagocytes

b)

Lymphocytes

c)

Pus

d)

Phagosome

10.

Inflammatory response occurs in infected areas. These areas become red because

a)

Histamine increases the permeability of blood capillaries

b)

Platelets accumulate in the infected areas

c)

Phagocytes carry out phagocytosis

d)

Histamine causes the blood capillaries to expand and increases blood flow

11.

The secondary immune response occurs because of the existence of _________ during primary immune response

a)

Memory cells

b)

Killer T cells

c)

Histamine

d)

Macrophages

12.

Which of the following is only present during specific immune response?

a)

Antigens

b)

Antibodies

c)

Antinodes

d)

Antidadah

13.

"Antibodies coagulate the pathogens and make them an easy target to be trapped and destroyed by phagocytes"

This describes __________

a)

Neutralisation

b)

Opsonisation

c)

Agglutination

d)

Precipitation

14.

When antibodies bind with toxins produced by bacteria and neutralises the toxin, it is considered as

a)

First line of defence

b)

Second line of defence

c)

Third line of defence

15.

An insoluble complex is formed when antibodies react with dissolved antigens. This process is known as

a)

Agglutination

b)

Lysis

c)

Opsonisation

d)

Precipitation

16.

Antibodies that combine with antigens and act as a marker for phagocytes to recognise the antigens and destroy them are known as

a)

Lysine antibodies

b)

Opsonin antibodies

c)

Any types of antibodies

d)

Antigens

17.

When antibodies combine with antigens and cause bacteria to be broken down and decomposed, this process is known as _________, and it requires __________________

a)

Opsonisation, opsonin antibodies

b)

Neutralisation, toxin

c)

Lysis, lysine antibodies

d)

Precipitation, phagocytes

18.

Which of the following describes the situation when antibodies are obtained from an external source?

a)

Injects Sinovac vaccine

b)

A person is permanently immuned against chicken pox

c)

Antiserum injection

d)

Injection of tetanus 破伤风 vaccine

19.

Antibodies are produced naturally by lymphocytes in human bodies in which case?

a)

Antiserum injection

b)

Vaccine injection

c)

Breastfeeding

d)

Inflammation

20.

A suspension of pathogens that are weakened, dead or non-virulent is

a)

Vaccine

b)

Antiserum

c)

Colostrum

d)

Placenta

21.

Rabies 疯狗症

Injection of anti-rabies antiserum is considered as

a)

Natural active immunity

b)

Natural passive immunity

c)

Artificial active immunity

d)

Artificial passive immunity

22.

When the mother's antibodies diffuse through the placenta into the blood flow of the foetus, the type of immunity is

a)

Natural active immunity

b)

Natural passive immunity

c)

Artificial active immunity

d)

Artificial passive immunity

23.

Antibodies that are found in the mother's milk or colostrum when breastfeeding protect the baby

a)

Life-long

b)

Eternally

c)

Permanently

d)

Temporarily

24.

In this type of immunity, which TWO substances are injected into the human body?

a)

Vaccine

b)

Antiserum

c)

Antibodies

d)

Antigens

25.

The purpose of this kind of immunity is

a)

Prevention

b)

Treatment

c)

When immediate protection is required

d)

Inflammation

26.

Antiserum is a serum that contains

a)

Specific antigens

b)

Specific antibodies

c)

Non-specific antigens

d)

Non-specific antibodies

27.

HIV causes AIDS, which is a disease that destroys the immune system of the human body. HIV is NOT transferred to a baby through

a)

Pregnancy

b)

Birth

c)

Breastfeeding

d)

Skin contact with a baby

28.

HIV is transmitted through?

(more than one answer)

a)

Blood

b)

Semen

c)

Vaginal secretion

d)

Saliva

29.

HIV does NOT spread in which case?

a)

Unprotected sexual intercourse

b)

Sharing contaminated needles

c)

Eating the same bowl of food

d)

Mosquito bites another person after biting an AIDS patient

30.

HIV is a type of virus that ___________.


Currently, in Malaysia, is there any artificial active immunity provided to prevent being infected by HIV?

a)

destroys lymphocytes.

Yes, through injecting the HIV vaccine.

b)

destroys lymphocytes.

No, there is currently no vaccine to prevent HIV

c)

destroys leucocytes.

Yes, through injecting the HIV vaccine.

d)

destroys leucocytes.

No, there is currently no vaccine to prevent HIV.