Question

teacher station
predicted rates of reaction

1. how does the ph effect an enzyme reaction?
2. life could not exist without enzymes. enzymes play a major role in the chemistry involved in maintaining life processes from photosynthesis and cellular respiration to the digestion of milk. which of the following explains how enzymes support these reactions?

a. enzymes bind to carbon dioxide produced during cellular respiration which then make the reaction go quicker.

Explanation:

Enzymes are biological catalysts. They increase the rate of chemical reactions by lowering the activation - energy. Each enzyme has an optimal pH range where it functions most efficiently. For example, pepsin works best in an acidic environment (low pH), salivary amylase in a near - neutral environment, and alkaline phosphatase in a more basic environment. Regarding the role of enzymes in life processes, they speed up reactions involved in photosynthesis, cellular respiration, and digestion by providing an alternative reaction pathway with a lower activation energy.

Answer:

1. Each enzyme has an optimal pH range. Outside this range, the enzyme's activity decreases. Pepsin has an optimal pH around 2 (acidic), salivary amylase around 7 (near - neutral), and alkaline phosphatase around 9 (basic).
2. Enzymes act as catalysts and lower the activation energy of chemical reactions involved in life processes such as photosynthesis, cellular respiration, and digestion, thus speeding up these reactions.