Immunology

What is the immune system primarily composed of?

• Nerves and tissues

• Specialized cells and proteins

• Blood and water

• Bones and muscles

How does the immune system protect the body from pathogens?

• By cooling the body

• By increasing blood flow

• By working like a well-oiled machine to protect against harmful pathogens

• By breaking down food

Which of the following is a characteristic of bacteria as mentioned in the learning material?

• Causes diseases like Flu and HIV/AIDS

• Consists of multi-cellular organisms

• Responsible for illnesses like strep throat and UTIs

• Includes organisms like ticks and ringworm

According to the learning material, which group of organisms includes ticks and ringworm?

• Bacteria

• Viruses

• Fungus/Parasites

• None of the above

What is a common way to contract the invaders such as fungus, bacteria, and viruses as mentioned in the image?

• Only through water

• Direct and indirect contact

• Only through air

• Only through direct contact

Which of the following diseases is not mentioned as being caused by viruses in the learning material?

• Flu

• HIV/AIDS

• Strep throat

• Common cold

What is the first step in the infection?

• Memory cells activation

• Antibody production

• Infection

• Barrier formation

What role do Helper T cells play in the immune response?

• They produce antibodies

• They remember past infections

• They lead the immune system and help other cells fight off infections

• They act as physical barriers to pathogens

What is the function of antibodies in the immune system?

• They remember past infections

• They help build up defenses to fight future infections

• They directly block infections at barriers

• They instruct other cells on their roles

What is the role of Memory cells in the immune system?

• They produce antibodies

• They act as barriers

• They help other cells by instructing them

• They remember past infections and act quickly if they return