Biochemistry EOC Review

The pH at which an enzyme is most efficient is called the _________ pH of an enzyme.

• neutral

• optimum

• minimum

• experimental

Once a new product leaves an enzyme, the enzyme is unchanged and ready for the next substrate. What is this called?

• fragile

• reusable

• specific

• catalyst

Cells can produce over one thousand different enzymes at a time.  Enzymes are critical to the metabolism of these cells, but why are so many different enzymes needed?

• Cells are completely unable to control what enzymes
  they produce

• The variety of enzymes prevents their actions from being inhibited. 

• The active site of an enzyme can only bind to a specific substrate.

• The products of a reaction are always converted into new enzymes.

Tags

NGSS.HS-LS2-3

Buffer is defined as

• ability to resist pH change

• ability to prevent pH from decreasing

• ability to resist a pH increase

• ability to resist pH change when small amount of acid added

Why were the biological samples generally good buffers?

• Water is a poor buffer

• They need to maintain a pH of 8.0 at all times

• All living organisms need to maintain homeostasis in terms of pH

• The samples came in liquid form

Tags

NGSS.HS-LS1-3

What is the primary function of carbohydrates?

• Fast energy

• Long-term energy storage

• Store genetic information

• Body insulation

Tags

NGSS.HS-LS1-7

Which of the following complex carbohydrates is a primary component of a plant's cell wall?

• Cellulose

• Glycogen

• Glucose

• Lipids

if you add an acid to a base what will happen?

• BOOM

• it will neutralize

• it wont mix

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

For enzymes to work, it has a spot where molecules dock in. What do we call this spot?

• active site

• substrate

• inhibitor

This is a substance that changes the rate of a chemical reaction.

• catalyst

• solute

• solvent

Tags

NGSS.HS-PS1-5