Quiz about Enzyme Diagram

Question 1

In the diagram, what is letter A?

Accepted Answer

enzyme-substrate complex

Answer

product

Answer

substrate

Answer

active site

Question 2

In the diagram, what is letter D...

Accepted Answer

enzyme

Answer

active site

Answer

substrate

Answer

products

Question 3

In the diagram, what is letter B...

Accepted Answer

substrate

Answer

active site

Answer

enzyme

Answer

products

Question 4

In the diagram, what is letter C...

Accepted Answer

active site

Answer

enzymes

Answer

substrate

Answer

products

Question 5

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

Accepted Answer

30oC

Answer

15oC

Answer

40oC

Answer

35oC

Question 6

In the diagram, what is letter E...

Accepted Answer

products

Answer

active site

Answer

enzyme

Answer

substrate

Question 7

At high temperatures enzyme activity declines because of:

Accepted Answer

Denaturation

Answer

Decreased Kinetic Motion

Answer

Increased H-Bonding

Answer

Dissociation of Ionic Compounds

Question 8

What is number 1 labeled in this diagram?

Accepted Answer

Substrate

Answer

Product

Answer

Enzyme

Answer

Enzyme-substrate complex

Question 9

What is labeled D in this diagram?

Accepted Answer

Enzyme

Answer

Product

Answer

Subrate

Answer

Enzyme-Substrate complex

Question 10

What is labeled C in this diagram?

Accepted Answer

Product

Answer

Substrate

Answer

Enzyme

Answer

Enzyme-Substrate complex

Question 11

Looking at the graph shown, what is the optimum temperature for this particular enzyme to work?

Accepted Answer

40 degrees

Answer

10 degrees

Answer

63 degrees

Answer

30 degrees

Question 12

The active site is ___ for each different type of substrate.

Accepted Answer

Specific

Answer

General

Answer

Not specific

Answer

the same

Question 13

An enzyme inhibitor prevents an enzyme from working because it-

Accepted Answer

changes the shape of the enzyme

Answer

eats the substrate

Answer

destroys the substrate

Answer

eats the enzyme

Question 14

What is the role of the active site in an enzyme?

Accepted Answer

It binds to the substrate and catalyzes the reaction

Answer

It provides energy for the reaction

Answer

It acts as a structural support

Answer

It inhibits the reaction

Question 15

Which of the following best describes an enzyme-substrate complex?

Accepted Answer

A temporary molecule formed when an enzyme binds to its substrate

Answer

A permanent bond between enzyme and substrate

Answer

A complex that inhibits enzyme activity

Answer

A structure that denatures the enzyme

Question 16

What happens to an enzyme after it catalyzes a reaction?

Accepted Answer

It returns to its original state

Answer

It is consumed in the reaction

Answer

It is permanently altered

Answer

It becomes inactive

Question 17

How does temperature affect enzyme activity?

Accepted Answer

Increases activity up to a certain point, then decreases

Answer

Increases activity indefinitely

Answer

Decreases activity indefinitely

Answer

Has no effect

Question 18

What is the effect of pH on enzyme activity?

Accepted Answer

Enzymes work best at a specific pH range

Answer

pH has no effect on enzymes

Answer

Enzymes are active at all pH levels

Answer

Enzymes denature at neutral pH

Question 19

Which of the following is a real-world application of enzymes?

Accepted Answer

Enzymes are used in detergents to break down stains

Answer

Enzymes are used to build structures

Answer

Enzymes are used to store energy

Answer

Enzymes are used to conduct electricity

Question 20

What is the lock and key model of enzyme action?

Accepted Answer

The enzyme and substrate fit together perfectly

Answer

The enzyme changes shape to fit the substrate

Answer

The substrate changes shape to fit the enzyme

Answer

The enzyme and substrate do not interact

Question 21

How do inhibitors affect enzyme activity?

Accepted Answer

They decrease the rate of reaction

Answer

They increase the rate of reaction

Answer

They have no effect

Answer

They permanently activate the enzyme

Question 22

What is the significance of enzyme specificity?

Accepted Answer

Enzymes are specific to one type of reaction

Answer

Enzymes can catalyze any reaction

Answer

Enzymes can only function in one type of cell

Answer

Enzymes are not specific

Question 23

Which experiment can demonstrate enzyme activity?

Accepted Answer

Measuring the rate of substrate conversion to product

Answer

Observing color change in a chemical reaction

Answer

Measuring temperature change in a reaction

Answer

Observing light emission in a reaction

Question 24

What is the effect of enzyme concentration on reaction rate?

Accepted Answer

Increases reaction rate up to a point, then levels off

Answer

Decreases reaction rate

Answer

Has no effect on reaction rate

Answer

Increases reaction rate indefinitely

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