Immunity

What is the significance of a healthy lifestyle in maintaining a strong immune system?

• A healthy lifestyle supports immune function and helps prevent diseases.

• A healthy lifestyle has no impact on the immune system.

• A healthy lifestyle only affects physical appearance.

• A healthy lifestyle is only important for mental health.

How does the body detect pathogens?

• By their antigens.

• By their size and shape.

• By their color and texture.

• By their movement and speed.

What is a disease-causing microorganism, such as a bacterium or virus?

• Pathogen

• Antibody

• Antigen

• Vaccine

What is an allergen?

• A type of food that is always safe to eat.

• A substance that causes an allergic reaction.

• A medication used to treat allergies.

• A chemical that enhances flavor in food.

What is the function of the thymus gland?

• To produce insulin, which regulates blood sugar levels.

• To produce T-cells, which are essential for adaptive immunity.

• To filter blood and remove waste products.

• To store bile produced by the liver.

What is herd immunity?

• A method of treating diseases with antibiotics.

• When a large percentage of a population becomes immune to a disease, making its spread unlikely.

• A vaccination strategy that targets only children.

• A phenomenon where only a few individuals in a population are immune.

What are antigens?

• Substances that trigger an immune response.

• Cells that fight infections.

• Proteins that transport oxygen in the blood.

• Hormones that regulate metabolism.

What is a vaccine?

• A substance that stimulates the immune system to develop immunity to a specific pathogen.

• A type of medication used to treat infections.

• A method of diagnosing diseases through blood tests.

• A nutritional supplement that boosts overall health.

Which of the following does NOT weaken the immune system?

• Healthy diet.

• Chronic stress.

• Poor sleep quality.

• Excessive alcohol consumption.

What role do antibodies play in the immune system?

• They help neutralize pathogens.

• They produce energy for cells.

• They transport oxygen in the blood.

• They initiate the inflammatory response.