Immunity In humans

Immunity In humans

by ROSLINDA Moe

Multiple Choice

What are antigens?

• proteins found on lymphocytes surface

• foreign particles that enter the body and subsequently stimulate the immune response.

• microorganism that causes diseases.

Multiple Choice

How many number of the line for body defence?

• 2

• 1

• 3

• 4

Multiple Select

Lysozymes are found in... (more than one answer)

• saliva

• skin

• mucus

• lungs

Multiple Select

Choose the correct defence mechanism of skin.

(more than one answer)

• dissolve pathogens

• continuous shedding of dead cell layers

• tough and dificult to penetrate

• secretion of sebum

Multiple Select

Example second line of defence are...

(more than one answer)

• phagocytosis

• fever

• mucous membrane

• lymphocytes

• inflammation

Multiple Choice

Definition for phagocytosis in immune response is.....

• particles enter through diffusion

• microorganisms are trapped and digested by

  phagocytes.

• microorganisms attack the body

• phagocytes produce antibodies to attack microorganisms

Multiple Select

WHICH OF THE FOLLOWING ARE EXAMPLES OF PHAGOCYTES?

• NEUTROPHILS

• MONOCYTES

• LYMPHOCYTES

• ERYTHROCYTES

Multiple Choice

First process in inflammation is...

• blood capillaries expand

• phagocytes carry out phagocytosis

• damaged tissues release histamine

• blood clotting mechanism is triggered

Multiple Choice

WHICH STATEMENTS ABOUT INFLAMMATION IS TRUE?

• DAMAGED TISSUE RELEASES LYSOZYMES

• HISTAMINE WILL CAUSED BLOOD CAPILLARIES TO CONSTRICT AND BECAME NARROW

• HISTAMINES INCREASE THE PERMEABILITY OF BLOOD CAPILLARIES TO PHAGOCYTES

• INFLAMMATION INHIBITS PHAGOCYTOSIS PROCESS

Multiple Select

lymphocytes formed in lymph nodes are

• lymphocyte C

• lymphocyte T

• lymphocyte B

• lymphocyte D

Multiple Select

actions of antibodies

• lysis

• neutalisation

• opsonisation

• agglutination

• precipitation

Multiple Choice

what is opsonisation

• Antibodies combine with antigens and act as a marker

  for phagocytes to recognise the antigens and destroy

  them.

• Antibodies combine with antigens and

  cause bacteria to be broken down and

  decomposed.

• Antibodies bind with toxins produced by bacteria

  and neutralise the toxin.

Multiple Choice

Which diagram shows antibodies coagulate the

pathogens?

Multiple Choice

Antibodies are produced naturally by lymphocytes is

• Active immunity

• passive immunity

Multiple Choice

Natural passive immunity is obtained from

• antiserum injection or serum

• individual recovers from an

  infection and gain permanent immunity

• vaccine injections

• mother’s

  milk

Multiple Choice

need to

give a second

injection

• Artificial Active Immunity

• Natural Passive Immunity

• Natural Active immunity

Multiple Select

HIV can spread through

• unprotected sexual relations

• during pregnancy of infected mother

• shared tattoo ink

• shared food and drinks

Multiple Select

Symptoms of HIV

• inflammation of blood vessels

• chronic diarrhoea

• fungi

  infection

• stroke

Multiple Choice

Which best describes the relationship between antibodies and antigen?

• One antibody can affect several different antigens.

• Antibodies are specific to one antigen.

• Antigens are produced in response to antigen.

• Immunity develops when an antigen destroys an antibody.