If an enzyme becomes over heated what effect, if any, will the heat have on the enzymatic activity?

The enzyme will not be able to catalyze reactions.

The enzyme will not store much chemical energy.

The enzyme will lose its net electrical charge.

The enzyme will lose stored genetic information.

What is the purpose of an enzyme?

give permission for the reaction

control how many reactions occur

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 statement best describes the enzyme represented in the graphs below?

This enzyme works best at a temperature of 35°C and a pH of 8

This enzyme works best at a temperature of 50°C and a pH of 12

Temperature and pH have no influence on the activity of this enzyme

This enzyme works best at a temperature above 50°C and a pH above 12

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.

What can we conclude from the graph? At a temperature of 62 ...

Enzyme activity is low but working

What can we conclude from the graph? At a pH of 6...

Enzyme A works but low activity

Enzyme B works but low activity

What can we conclude from the graph? At a pH of 8..

Enzyme A works but low activity

Enzyme B works but low activity

What can we conclude from the graph? At a a pH of 3..

Enzyme A works but low activity

Enzyme B works but low activity

Based on the data table, Which statement best describes the two enzymes in this data table?

They work best at a different pH

They work on different substrates

They work on the same substrates

Based on the data presented, what best summarizes the difference between amylase and glucoamylase?

Amylase works best at pH of 4 and Glucoamylase at ph of 7

Amylase works best at pH of 8 and Glucoamylase at ph of 3

Amylase works best at pH of 3 and Glucoamylase at ph of 8

Amylase works best at pH of 7 and Glucoamylase at ph of 4

ENZYME pd5

Quiz

•

Biology

•

9th Grade

•

Practice Problem

•

Medium

•

NGSS

HS-PS1-5, HS-PS1-2, HS-LS2-3

+1

Standards-aligned

Susana Cheng

Used 1+ times

FREE Resource

50 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Enzymes are...

Nucleic Acids

Proteins

Lipids

Carbohydrates

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Which of the following binds to an active site of an enzyme?

Substrate

Product

Codon

None of these

Which of the following binds to an active site of an enzyme?

Substrate

Product

Codon

None of these

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

An enzyme speeds up a chemical reaction in the cell, but can only be used once.

True

False

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Enzymes speed up a chemical reaction by...

destroying products

lowering activation energy

increasing activation energy

allowing reactions to process at their own speed

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

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

substrate

reactant

nucleic acid

both a & b

Based on the graph, what temperature does this enzyme work best?

30* C

15* C

47* C

40* C

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ENZYME pd5

50 questions

Enzymes are...

Which of the following binds to an active site of an enzyme?

Which of the following binds to an active site of an enzyme?

An enzyme speeds up a chemical reaction in the cell, but can only be used once.

Enzymes speed up a chemical reaction by...

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

Based on the graph, what temperature does this enzyme work best?

In the diagram, what is letter E?

What is being represented by the letter A in the image?

What is being represented by the letter B in the image?

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