Section 3 - Macromolecules and Enzymes

Front

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

Back

Enzyme

Front

The substance on which an enzyme acts is the -

Back

active site

Front

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

Back

ability to catalyze a reaction

Front

Most enzymes -

Back

speed up the chemical reaction

Front

Refer to the figure above. What temperature would be considered the optimum temperature for this enzyme's activity rate? Options: 20 Degrees Celsius, 60 Degrees Celsius, 40 Degrees Celsius, 30 Degrees Celsius

Back

40 Degrees Celsius

Front

What suffix is used in the names of most enzymes?

Back

-ase

Front

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

Back

store energy

Front

Which macromolecules function in insulation, helping animals conserve heat? Options: Proteins, Lipids, Carbohydrates, Nucleic Acids

Back

Lipids

Front

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

Back

Store genetic information

Front

What is an example of a nucleic acid?

Back

A strand of DNA