AQA - Biology - Specific response

What is the primary function of white blood cells in the human body?

• To transport oxygen

• To fight infections

• To carry nutrients

• To produce energy

How do antibodies help in the immune response?

• By producing red blood cells

• By neutralising pathogens

• By breaking down food

• By transporting oxygen

Which of the following best describes the difference between antigens and antibodies?

• Antigens are produced by the immune system, while antibodies are foreign substances

• Antigens are foreign substances, while antibodies are produced by the immune system

• Both antigens and antibodies are produced by the immune system

• Both antigens and antibodies are foreign substances

What is the role of antitoxins in the body?

• To produce red blood cells

• To neutralise toxins produced by pathogens

• To transport oxygen

• To break down food

Which type of white blood cell is primarily responsible for producing antibodies?

• Red blood cells

• Platelets

• B lymphocytes

• T lymphocytes

Why are white blood cells important for the immune system?

• They produce energy for the body

• They help in the digestion of food

• They protect the body against infections and diseases

• They transport oxygen to tissues

What happens when an antibody binds to an antigen?

• The antigen is transported to the liver

• The antigen is neutralised or marked for destruction

• The antibody is destroyed

• The antibody becomes inactive

Which of the following statements is true about the production of antitoxins?

• Antitoxins are produced by red blood cells

• Antitoxins are produced by white blood cells to neutralise toxins

• Antitoxins are produced by platelets

• Antitoxins are produced by the liver