U3 AOS2: Factors Affecting Rate of Cellular Respiration

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Enzyme

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A protein that acts as a catalyst to speed up chemical reactions in the cell.

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Optimal temperature

Back

The temperature at which an enzyme functions most efficiently.

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Kinetic energy

Back

The energy possessed by an object due to its motion, affecting the rate of cellular respiration.

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Denature

Back

The process by which an enzyme loses its functional shape, often due to high temperature or extreme pH.

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Optimal pH

Back

The pH level at which an enzyme is most active.

Front

Glucose availability

Back

The presence of glucose, which is a substrate for cellular respiration.

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Oxygen concentration

Back

The level of oxygen available, which affects aerobic respiration.

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Saturation point

Back

The point at which increasing substrate concentration no longer increases the rate of reaction.

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Plateau

Back

A stage where the rate of reaction levels off despite increasing substrate concentration.

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Enzyme inhibitors

Back

Substances that decrease the activity of enzymes.