Section 3 - Macromolecules and Enzymes

Type of protein that SPEEDS UP metabolic reactions in plants and animals without being permanently changed or destroyed

• The reactant

• Glucose

• Enzyme

• ATP

The substance on which an enzyme acts is the -

• product

• substrate

• activation energy

• active site

Changing the shape (such as overheating) of an enzyme results in the enzyme's loss of -

• ability to catalyze a reaction

• storage of inherited information

• net electrical charge

• storage of a large amount of chemical energy

Most enzymes -

• have no effect on the rate of the chemical reaction

• speed up the chemical reaction

• slow the rate of the chemical reaction

• keep the rate of the chemical reaction the same

Refer to the figure above. What temperature would be considered the optimum temperature for this enzyme's activity rate?

• 20 Degrees Celsius

• 60 Degrees Celsius

• 40 Degrees Celsius

• 30 Degrees Celsius

Tags

NGSS.HS-PS1-5

What suffix is used in the names of most enzymes?

• -nic

• -ase

• -gen

• -yme

Both lipids and carbohydrates are important in animal cells because both -

• provide insulation

• store energy

• contain nitrogen

• form cell walls

Tags

NGSS.MS-LS1-7

Which of the following macromolecules are a prominent part of animal tissues that function in insulation, helping animals conserve heat?

• Proteins

• Lipids

• Carbohydrates

• Nucleic Acids

Which of the following is NOT a function of proteins?

• Make up antibodies

• Serve as catalysts that control the rate of chemical reactions in the cell

• Store genetic information

• Form parts of tissues such as bone and muscle

What is an example of a nucleic acid?

• A strand of DNA

• Vegetable oil

• Collagen found in human skin

• A sweet potato