Biology EOC Review #2

Front

What is the term for the phenomenon where each enzyme only has one specific substrate that fits its active site?

Back

Specificity

Front

What occurs to enzymes when they are exposed to high temperatures?

Back

The shapes of the enzyme are altered, a process known as denaturation.

Front

Where does the Light Independent Reaction (Calvin Cycle) take place within the chloroplast?

Back

In the stroma.

Front

What is the expected outcome when an appropriate enzyme is added to a chemical reaction?

Back

The reaction rate will increase.

Front

What conclusion can be drawn from a graph showing enzyme activity at different pH levels?

Back

The optimum pH of the enzyme is 6.6.

Front

Define enzyme specificity.

Back

Enzyme specificity refers to the ability of an enzyme to choose exact substrate from a group of similar chemical molecules.

Front

What is denaturation in the context of enzymes?

Back

Denaturation is the process in which an enzyme loses its functional shape due to external stress, such as high temperature or extreme pH.

Front

What is the role of the stroma in photosynthesis?

Back

The stroma is the fluid-filled space in chloroplasts where the Light Independent Reactions (Calvin Cycle) occur.

Front

How does temperature affect enzyme activity?

Back

Enzyme activity typically increases with temperature up to a certain point, after which high temperatures can lead to denaturation.

Front

What is the relationship between enzyme concentration and reaction rate?

Back

Increasing enzyme concentration generally increases the reaction rate, provided there is enough substrate available.