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Chemistry of Life & Enzymes

Chemistry of Life & Enzymes

Assessment

Presentation

Biology

9th Grade

Practice Problem

Medium

NGSS
HS-PS1-5, HS-LS1-6, HS-PS1-4

Standards-aligned

Created by

Tiffany Paine

Used 48+ times

FREE Resource

10 Slides • 17 Questions

1

Chemistry of Life & Enzymes

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2

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3

Multiple Choice

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What process is shown in this picture?

1

dehydration synthesis

2

hydrolysis

4

Multiple Choice

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What process is shown in this picture?

1

dehydration synthesis

2

hydrolysis

5

Multiple Choice

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Analyze the elements that compose the reactants and products. What are the reactants in this reaction?

1

nucleic acids

2

monosaccharides

3

amino acids

4

fatty acids

6

Multiple Choice

Based on your previous answer, what type of bond was made to join the two monomers together?

1

hydrogen bond

2

peptide bond

3

helium bond

4

glycerol bond

7

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8

Multiple Choice

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Which reaction shows the amount of energy required without enzymes?

1

black line

2

red line

9

Multiple Choice

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Which reaction shows the amount of energy required with enzymes?

1

black line

2

red line

10

Fill in the Blanks

Type answer...

11

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12

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13

Open Ended

What happens to an enzyme when it is heated above its optimal temperature?

14

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15

Multiple Choice

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What is the optimal temperature of this enzyme?

1

50 degrees C

2

40 degrees C

3

60 degrees C

4

70 degrees C

16

Multiple Choice

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At what temperature(s) does this enzyme begin to denature?

1

Above 15 degrees C

2

Below 15 degrees C

17

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18

Multiple Choice

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What does substrate concentration refer to?

1

There aren't enough substrates compared to enzymes

2

There aren't enough enzymes compared to substrates

3

Substrates and enzymes are in equal amounts

19

Multiple Choice

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What would increase the reaction rate?

1

adding more substrates

2

adding more products

3

adding more enzymes

4

adding more water

20

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21

Multiple Choice

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What type of pH does pepsin function best in?

1

acidic

2

basic

3

neutral

22

Multiple Choice

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What is the optimal pH of salivary amylase?

1

2

2

7

3

8

4

9

23

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24

Open Ended

What do competitive inhibitors compete for?

25

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26

Open Ended

What do non-competitive inhibitors do to an enzyme?

27

Multiple Choice

What do competitive and non-competitive inhibitors have in common?

1

they both bind to the active site

2

they both change the shape of the enzyme

3

they both increase the reaction rate

4

they both prevent a reaction from occuring

Chemistry of Life & Enzymes

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