Photosynthesis, Cellular Respiration, and Enzymes

Front

What is the main source of energy for all life?

Back

The sun.

Front

What happens to enzymes when they are heated to a high temperature?

Back

The shapes of the enzyme are altered (denatured).

Front

What is the optimum pH of the enzyme if its activity is highest at pH 6.6?

Back

The optimum pH of the enzyme is 6.6.

Front

What are the products of aerobic respiration?

Back

Carbon dioxide and water.

Front

What is the optimal temperature for an enzyme if it functions best at 30°C?

Back

30°C.

Front

Define photosynthesis.

Back

Photosynthesis is the process by which green plants and some other organisms use sunlight to synthesize foods with the help of chlorophyll.

Front

What is cellular respiration?

Back

Cellular respiration is the process by which cells convert glucose and oxygen into energy, carbon dioxide, and water.

Front

What role do enzymes play in biological reactions?

Back

Enzymes act as catalysts to speed up chemical reactions without being consumed in the process.

Front

What is denaturation in the context of enzymes?

Back

Denaturation is the process where an enzyme's structure is altered, affecting its function, often due to extreme temperature or pH.

Front

What is the relationship between temperature and enzyme activity?

Back

Enzyme activity typically increases with temperature up to an optimal point, after which it decreases due to denaturation.