7. a) Protein molecules are the building blocks of the body. They are made up of

Question

7. a) Protein molecules are the building blocks of the body. They are made up of long chains of amino acids. Draw the general structure of an amino acid. (1 points) HINT: Think about the carboxyl group, amino group, and side chain b) Describe the role of the digestive enzymes and the factors that affect their function. (1 points) HINT: Think about the effect of enzymes on large macromolecules and what causes enzymes to change 8. a) Describe how water is important to plants in terms of i) making food in plants ii) the plant's shape il) hydrolysis and dehydration (3 points) HINT: Think about: )production of glucose i) water in cells iil) breaking and creating bonds

Explanation / Answer

7. b. Digestive enzymes are being secreted by stomach, pancreas, salivary gland, small intestine, etc., in the digestive tract. It is also called metabolic enzymes which helps in digesting food. Digestive enzymes make the food materials into substances by bochemical processes. Temperature, pH, concentration of enzymes and substrate, inhibitors and activators are some of the factors which affect digestive enzymes.

8. a. Plants get the water from their roots for it's photosynthesis. Plants have root hair cells through which it receive water. Roots have a thin wall and a greater surface area and water passes through it.

Hydrolysis is the chemical process of adding water to substances by cleavage of chemical bonds whereas dehydration is the process of disruption of metabolic process and this happens when free water loss exceeds the intake of water.

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