Chemical reactions always involve

the breaking of bonds in reactants and the formation of new bonds in products.

the breaking of bonds in reactants.

the formation of new bonds in products.

An enzyme speeds up a reaction by

lowering the activation energy.

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.

What happens when enzymes are heated to a high temperature?

The shapes of the enzyme are altered or denatured

The enzymes' amino acid sequence changes.

The graph shows how enzymes affect reactions in cells. Which statement best summarizes the information shown in the graph?

Enzyme decrease the activation energy of the reaction.

Enzymes increase the energy of the reactants.

Enzymes decrease the energy level of the products.

Enzymes reverse the direction of the reaction.

A substance that speeds up a rate of chemical reaction.

Molecules that make enzymes work harder and faster

A substance that slows down a rate of chemical reaction.

Enzymes are made of fatty acids.

Enzymes speed up chemical reactions.

Enzymes react best at a specific temperature.

Enzymes only control ONE type of reaction.

Which of the following best explains why enzymes are necessary for reactions in our cells?

The reactions are too slow to meet the needs of the cell if enzymes are missing.

Enzymes supply the oxygen necessary for the reactions.

Enzymes change reactants from solid to liquid during the reactions.

The reactions take up too much space in the cell if enzymes are missing.

A baby is locked in the car on a hot day. What is most likely to happen to the child?

The child's enzymes will denature causing chemical reactions to slow down in the body, which will lead to death.

The child's body will adjust and cause it to maintain homeostasis

The child's enzymes will denature causing chemical reactions to speed up in the body, which will lead to death.

The activation energy for chemical reactions will remain unchanged and therefore the child will live.

Enzymes are _______________ that _____________________ chemical reactions by ____________ the amount of activation energy required to start the reaction.

carbohydrates, slow down, lowering

How does an enzymes shape relate to its function?

the enzyme is shaped specially for certain substrates to perform a specific reaction

the shape of the enzyme has no relation to its function

the enzyme shape acts as a receptor to certain products

the enzyme shape can fit into specific substrates to cease a reaction

The graphs show the reaction rate for an enzyme across a range of temperatures and pH. Based on these data, this enzyme functions best as what temperature and pH?

Temperature of 37oC and a pH of 6

Temperature of 27oC and a pH of 4

Temperature of 40oC and a pH of 8

Temperature of 50oC and a pH of 10

The diagram represents one way an enzyme can be inhibited. Which statement explains the effect of an inhibitor on an enzyme?

A substrate will be unable to attach to the enzyme.

A substrate will be able to bond with the enzyme.

The enzyme will likely be attacked by immune cells.

The enzyme will be unable to produce more enzymes.

AP Enzymes Review 2023

10th Grade

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100 Qs

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AP Enzymes Review 2023

Quiz

•

Biology

•

10th Grade

•

Practice Problem

•

Easy

•

NGSS

HS-PS1-5, MS-LS1-7, HS-PS1-4

+11

Standards-aligned

Kris Hodge

Used 40+ times

FREE Resource

100 questions

Show all answers

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Enzymes are an example of

Lipids

Carbohydrate

Protein

Nucleic Acid

Tags

NGSS.MS-LS1-7

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What is the purpose of an enzyme?

give permission for the reaction

raise activation energy

speed up reactions

control how many reactions occur

Tags

NGSS.MS-LS1-7

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Enzymes are capable of increasing the rate of a chemical reaction within a living cell. Enzymes accomplish this through which of the following means?

reducing the number of products

reducing the activation energy

increasing the temperature of the cell

increasing the concentration of reactants

Tags

NGSS.HS-PS1-4

NGSS.HS-PS1-5

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Each enzyme only has 1 substrate that will fit its active site. What is this called?

reusable

catalyst

specific

fragile

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What 3 letters do enzymes typically end in?

-ose

-ase

-ese

-tic

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Any substance that is acted upon by an enzyme is called a(n)?

Coenzyme

Substrate

Vitamin

Polypeptide

MULTIPLE CHOICE QUESTION

1 min • 1 pt

After the enzyme and substrate bind together and perform the reaction, what does the substrate become?

a substrate

an enzyme

a product

an active site

Tags

NGSS.MS-LS1-7

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AP Enzymes Review 2023

100 questions

Enzymes are an example of

What is the purpose of an enzyme?

Enzymes are capable of increasing the rate of a chemical reaction within a living cell. Enzymes accomplish this through which of the following means?

Each enzyme only has 1 substrate that will fit its active site. What is this called?

What 3 letters do enzymes typically end in?

Any substance that is acted upon by an enzyme is called a(n)?

After the enzyme and substrate bind together and perform the reaction, what does the substrate become?

In the diagram, what is letter A?

Letter D...

Letter B...

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