Which of the following conclusions can be drawn from this graph?

The optimum pH of the enzyme is 6.6.

The optimum pH of the enzyme is 5.8

The enzyme’s activity increases as pH increases 5.0 to 9.0

The enzyme’s activity is greater around pH of 8.0 .

Which of these is NOT true?

Enzymes can only be used once in a chemical reaction.

Enzymes can denature (change shape) when the temperature gets too high.

Extreme pH can denature enzymes.

Enzymes speed up chemical reactions.

Which of the following correctly describes enzyme structure and function?

The shape of an enzyme is responsible for its function.

All enzymes can bind to all substrates.

The substrate is responsible for the shape of the enzyme.

The location of an enzyme determines its function.

Which of the following correctly describes how an enzymes shape is determined?

A DNA sequence is transcribed and translated to produce an amino acid sequence that makes up an enzyme and gives it a particular shape.

Enzyme function is determined by the temperature.

Carbohydrate chains are used to produce enzymes and determine their function.

Enzyme shape is determined by the location of the enzyme in the body.

If a mutation occurs in a DNA sequence that codes for an enzyme, what is the most likely result?

The enzyme will most likely fold in a way that makes its shape incompatible with the substrate and the enzyme will not function correctly.

There will likely be no change in the shape and function of the enzyme.

The enzyme will not be produced at all.

The enzyme will have an enhanced ability to bind with the substrate.

Which of the following is directly responsible for the shape of an enzyme/protein?

The amino acid sequence of the protein and the properties of the amino acids that make up the protein.

The temperature of the surrounding environment.

The pH of the surrounding environment.

The amount of substrate present.

If a mutation occurs in a DNA sequence that codes for an enzyme, what is the most likely result?

The enzyme will most likely fold in a way that makes its shape incompatible with the substrate and the enzyme will not function correctly.

There will likely be no change in the shape and function of the enzyme.

The enzyme will not be produced at all.

The enzyme will have an enhanced ability to bind with the substrate.

At high temperatures enzyme activity declines because of:

Dissociation of Ionic Compounds

In order to increase the rate of reaction using an enzyme a scientist could.... (Choose all that apply)

Increase the amount of substrate

Introduce a competitive inhibitor

REFER TO GRAPH: At a pH of 4, what could happen to this enzyme?

It would catalyze the substrate at a faster rate.

It would function at its optimum.

Enzyme Review AP Biology

Quiz

•

Biology

•

9th - 12th Grade

•

Practice Problem

•

Easy

•

NGSS

HS-PS1-5, HS-LS1-1, HS-PS1-4

+6

Standards-aligned

Nicole Karle

Used 1K+ times

FREE Resource

33 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What type of macromolecule are enzymes?

Protein

Carbohydrate

Lipid

Nucleic Acid

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Enzymes need certain environmental conditions in order to function properly. What happens when enzymes are heated to a high temperature?

they die

they denature

they change their amino acid sequence

they work better

Which of the following correctly describes how enzymes work?

they lower the energy of the reactants to increase the rxn rate

they supply energy to the reaction to increase the rxn rate

they lower the energy of the products to increase the rxn rate

they lower the activation energy of the reaction to increase the rxn rate

Which enzyme breaks down hydrogen peroxide to water and oxygen gas?

sucrase

lactase

catalase

peroxidase

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Enzymes are made up of these repeating monomers.

monosaccharides

amino acids

nucleotides

phospholipids

The part of the enzyme that the substrate bonds to is called the _____.

active site

activation energy

bond site

peptide bond

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is not a job of a protein

Act as hormones and enzymes

Do much of the work in cells and transport materials

Build tissues and muscles

store and transmit genetic information

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Enzyme Review AP Biology

33 questions

What type of macromolecule are enzymes?

Enzymes need certain environmental conditions in order to function properly. What happens when enzymes are heated to a high temperature?

Which of the following correctly describes how enzymes work?

Which enzyme breaks down hydrogen peroxide to water and oxygen gas?

Enzymes are made up of these repeating monomers.

The part of the enzyme that the substrate bonds to is called the _____.

Which of the following is not a job of a protein

What is a substance called if it speeds up a chemical reaction?

What 3 letters do enzymes typically end in?

Changes in pH and temperature can damage an enzymes active site. What is this called?

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