Topics: Enzymes and Digestion Quiz
What is the purpose of the ‘lock and key theory’ in explaining enzyme action?
A. To demonstrate the role of amylase in starch digestion
B. To illustrate the breakdown of lipids by lipases
C. To explain the production of bile in the liver
D. To describe the shape of enzyme molecules
Select your answer:

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Eye Physiology › ViewThe fovea contains which types of photoreceptors?
A. Rods
B. Cones
Purpose and Function of the Skeletal System › View
Bones are store houses for all of these except.
A. Fats
B. Blood Cells
C. Iron
D. Calcium