Biomolecules Review

Which portion of the label would show information about quick energy?

Tags

5A

Match the example molecule with the correct category.

Groups:

(a) Enzymes

,

(b) Carbohydrates

,

(c) Proteins

• Actin

• Glucose

• Cellulose

• Protease

• Keratin

• Chitinase

• Sucrose

• Lactase

• Hemoglobin

Tags

5A

Which statement best compare a function of proteins and lipids in a human cell?

• Proteins provide energy for cellular process. Lipids catalyze chemical reactions inside the cell.

• Proteins catalyze chemical reactions inside the cell. Lipids allow for the transport of certain molecules into and out of the cell.

• Proteins allow for the transport of certain molecules into and out of the cell. Lipids store genetic information for cells.

• Proteins store genetic information for cells. Lipids provide energy for cellular processes.

Tags

5A

A student makes a Venn diagram to compare the functions of carbohydrates and lipids. Which cellular function should be placed in the shared section of the Venn diagram?

• hormone production

• structural support of cell walls

• energy storage

• catalyst for chemical reactions

Tags

5A

The function of an enzyme in a biochemical reaction is to -

• raise the temperature of the system

• speed up the rate of the reaction

• increase the amount of substrate added

• change the type of product formed

Tags

11B

A model of an enzyme and its corresponding substrate is shown. Which model best represents the molecules at the end of the reaction?

• 
• 
• 
• 

Tags

11B

For an enzyme to be able to catalyze a reaction, the active site must -

• be occupied by an inhibitor

• increase the activation energy level

• have a complementary shape to the substrate

• cause the enzyme to be destroyed in the reaction

Tags

11B

Enzymes are proteins that have a three-dimensional shape that is specific to a particular substrate. Environmental conditions can change the shape of the protein. What is the most likely result if the shape of the enzyme changes?

• The substrate will change its shape to match the enzyme.

• The enzyme will no longer be able to catalyze the reaction with the substrate.

• The products made from the enzyme and the substrate will be changed.

• The enzyme will be able to bind to more diverse substrates than before.

Tags

11B

What are the functions of enzymes? (Select all that apply)

• Increase the rate of chemical reactions

• Speed up chemical reactions

• Lower activation energy

• Speed up creation of more enzymes

• Lower required substrates

Tags

11B

Which letter identifies the activation energy?

Tags

11B