Enzymes

Presentation

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Biology

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11th - 12th Grade

•

Medium

•

NGSS

HS-PS1-2, HS-LS1-1, HS-PS1-4

Standards-aligned

Kendall Hayes

Used 80+ times

FREE Resource

0 Slides • 13 Questions

Multiple Choice

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

Multiple Choice

What does the term OPTIMUM mean for enzyme temperature?

The lowest temperature at which the enzyme works

The temperature which gives the highest enzyme activity

The temperature which gives the lowest enzyme activity

The highest temperature before denaturing occurs

Multiple Choice

What type of enzyme breaks down starch ?

protease

lipase

amylase

phosphorlylase

Multiple Choice

An enzyme speeds up a chemical reaction in the cell but can only be used once. True or False?

true

false

Multiple Choice

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 .

Multiple Choice

Enzymes are an example of

Lipids

Carbohydrate

Protein

Nucleic Acid

Multiple Choice

What is the purpose of an enzyme?

give permission for the reaction

raise activation energy

speed up reactions

control how many reactions occur

Multiple Choice

What 3 letters do enzymes typically end in?

-ose

-ase

-ese

-tic

Multiple Choice

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

Coenzyme

Substrate

Vitamin

Polypeptide

Multiple Choice

Enzymes provide a site where reactants called substrates can be brought together in an enzyme-catalyzed reaction. The site is called the

enzyme substrate complex.

reaction site.

active site.

lock and key.

Multiple Choice

An enzyme speeds up a reaction by

lowering the activation energy.

raising the activation energy.

releasing energy.

absorbing energy.

Multiple Choice

Based on the graph, what is the optimal temperature for this enzyme?

15^oC

40^oC

30^oC

35^oC

Multiple Choice

How does an enzymes shape relate to its function?

the shape of the enzyme has no relation to its function

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

the enzyme shape acts as a receptor to certain products

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

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

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