Enzymes and Temperature

What are enzymes?

• Molecules that store genetic information.

• Lipids that provide energy for cells.

• Carbohydrates that transport nutrients in the body.

• Proteins that act as catalysts in biological reactions

Tags

NGSS.HS-LS2-5

Name one factor that affects enzyme activity.

• substrate concentration

• pH level

• Temperature

• enzyme concentration

Tags

NGSS.HS-PS1-5

What is the optimum temperature for enzyme activity?

• 37 degrees Celsius

• 25 degrees Celsius

• 50 degrees Celsius

• 10 degrees Celsius

What happens to enzymes when they are denatured by heat?

• Enzymes become more active.

• Enzymes lose their shape and function

• Enzymes maintain their shape and function.

• Enzymes gain new functions.

True or False: Enzymes are proteins.

• True

• False

• Enzymes are carbohydrates.

• Enzymes are lipids.

Tags

NGSS.HS-LS1-1

How does temperature affect enzyme activity?

• Temperature affects enzyme activity by altering the enzyme's shape and increasing the rate of reaction.

• Temperature decreases enzyme activity.

• Temperature has no effect on enzyme activity.

• Temperature increases enzyme activity but does not alter the enzyme's shape.

What is the process called when enzymes lose their shape and function due to high temperature?

• inhibition

• activation

• catalysis

• denaturation

What is the range of temperatures at which enzymes work best?

• Extreme temperature range

• Suboptimal temperature range

• Optimal temperature range

• Variable temperature range

What happens to enzyme activity at very low temperatures?

• Decreases

• Fluctuates

• Remains constant

• Increases

What happens to enzyme activity at very high temperatures?

• enzyme activity increases

• enzyme activity decreases or denatures

• enzyme activity remains the same

• enzyme activity becomes more efficient