MEDIUM
AS and A Level
IMPORTANT
Earn 100
Analogies are often useful in science. An analogy is used to try to explain an unfamiliar topic by comparing it to something that is more familiar, for example, the action of the heart is often compared with a pump. Try to think of an analogy to explain clonal selection.
Important Questions on Immunity
MEDIUM
AS and A Level
IMPORTANT
Looking at the above figure, explain why only cells in clone Y have responded to the antigen.
EASY
AS and A Level
IMPORTANT
Calculate the diameter of the plasma cell in the above figure at its widest point.
EASY
AS and A Level
IMPORTANT
Explain why B cells divide by mitosis during an immune response.
MEDIUM
AS and A Level
IMPORTANT
Explain how plasma cells, such as the one shown in the above figure, are adapted to secrete large quantities of antibody molecules.
MEDIUM
AS and A Level
IMPORTANT
Looking at the figure, state how the secondary immune response differs from the primary immune response.
MEDIUM
AS and A Level
IMPORTANT
Explain why people are often ill for several weeks after they catch a disease, even though they can make antibodies against the disease.
MEDIUM
AS and A Level
IMPORTANT
Look at the above figure, and explain why is it important that the constant region of all antibodies is the same.
MEDIUM
AS and A Level
IMPORTANT
Explain why the antibody molecules are shown in the above figure:
- Shows all four levels of protein structure.
- Is a glycoprotein.
