An enzyme speeds up a reaction by

lowering the activation energy.

What happens when enzymes are heated to a high temperature?

The shapes of the enzyme are altered denature

The enzymes' amino acid sequence changes.

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 .

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.

Which of the following are true about enzymes? (Choose all that apply)

Enzymes speed up chemical reactions.

Enzymes react best at a specific temperature.

Enzymes only control ONE type of reaction.

Enzymes are made of fatty acids.

Match the process with the correct organelle.

Photosynthesis occurs in the chloroplast; Respiration occurs in the mitochondria

Photosynthesis occurs in the chloroplast; Respiration occurs in the chloroplast

Photosynthesis occurs in the mitochondria; Respiration occurs in the ribosome

Photosynthesis occurs in the ribosome; Respiration occurs in the mitochondria

How are photosynthesis and respiration related?

The products of one are the reactants of the other

ATP is a product of both reactions

The same products are made in both reactions

The two processes occur in the same organelle

Biomolecule practice 2

Quiz

•

Biology

•

9th - 12th Grade

•

Practice Problem

•

Medium

•

NGSS

HS-LS1-6, HS-LS1-7, HS-PS1-5

+9

Standards-aligned

Stacey Ramay

Used 85+ times

FREE Resource

36 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Enzymes are an example of

Lipids

Carbohydrate

Protein

Nucleic Acid

What is the purpose of an enzyme?

give permission for the reaction

raise activation energy

speed up reactions

control how many reactions occur

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What 3 letters do enzymes typically end in?

-ose

-ase

-ese

-tic

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

In the diagram, what is letter A?

product

substrate

enzyme-substrate complex

active site

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Letter D...

active site

enzyme

substrate

products

Letter B...

active site

enzyme

substrate

products

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Letter C...

active site

enzymes

substrate

products

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Biomolecule practice 2

36 questions

Enzymes are an example of

What is the purpose of an enzyme?

What 3 letters do enzymes typically end in?

In the diagram, what is letter A?

Letter D...

Letter B...

Letter C...

Letter E...

In a chemical reaction, ________ are what you have at the end

An enzyme speeds up a reaction by

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