Body Defense Diseases

What is a pathogen?

• A germ that causes disease

• A disease

• A microbe that causes disease

• Something that can make you feel very ill

Name the group of cells in your blood that is involved in destroying pathogens.

• Red blood cells

• Platelets

• Plasma

• White blood cells

How many lines of defence are there in our body?

• 1

• 2

• 3

• 4

Which of the following belongs to the non-specific body defence mechanism? (You can choose more than one answer.)

• First line of defence

• Second line of defence

• Third line of defence

Which of the following is the protein produced by white blood cell?

• allergen

• antibody

• antihistamine

• antigen

Bacteria that are harmful to people and cause them to get sick are called _____.

• pathogen

• lymph nodes

• antibody

• immunity

Which of the following is the body’s first line of defense against disease?

• body immune system

• white blood cells

• antibodies

• skin

What is an antigen?

• A foreign substances that comes from outsides the body and induces the production of antibodies

• A foreign substances that comes from inside the body and induces the production of antibodies

• A foreign substances that comes from outsides the body and prevent the production of antibodies

Pathogens can enter our bodies through ____________ . (You can choose more than one answer.)

• respiratory system

• digestive system

• excretory system

• skin

_____________ is the ability of the body system to resist pathogens before it is infected.

• Immunity

• Pathogen

• Antigen

• Antibody