Question 1

The __________ __________ is the substrate concentration needed for an enzyme to achieve half maximal velocity.

Accepted Answer

The answer of The __________ __________ is the substrate concentration...

Question 2

One of the components used during photosynthetic electron transport is ferredoxin,a nonheme iron protein.

Accepted Answer

A) True 
 B)False

Question 3

The most specific term usually used to describe a substance in a biological system that increases the rate of a reaction without being permanently changed by the reaction is a(n)

Accepted Answer

A) catalyzer. 
B) catalyst. 
C) enzyme. 
D) rate increaser.

Question 4

Isoenzymes are different enzymes that catalyze the same reaction but can be regulated independently of one another.

Accepted Answer

A) True 
 B)False

Question 5

The __________ law of thermodynamics states that energy can be neither created nor destroyed.

Accepted Answer

A) first 
B) second 
C) third 
D) fourth

Question 6

The __________ is the electron donor in a redox reaction.

Accepted Answer

A) reductant 
B) oxidant 
C) enzyme 
D) product

Question 7

The reacting molecules in an enzyme-catalyzed reaction are called __________.

Accepted Answer

The answer of The reacting molecules in an enzyme-catalyzed reaction...

Question 8

In order for the cell to be able to input energy into necessary endergonic reactions,energy-generating processes such as photosynthesis,fermentation,and respiration are used to produce __________.

Accepted Answer

The answer of In order for the cell to be...

Question 9

If all available enzyme molecules are binding substrate and converting it to product as rapidly as possible,the reaction is said to be proceeding at __________ velocity.

Accepted Answer

A) terminal 
B) maximal 
C) optimal 
D) infinite

Question 10

Each enzyme normally has specific pH and temperature optima at which they function best.

Accepted Answer

A) True 
 B)False

Question 11

The binding of a positive allosteric regulator molecule will

Accepted Answer

A) decrease the ability of the substrate to bind to the allosteric site 
B) decrease the ability of the substrate to bind to the allosteric site. 
C) increase the ability of the substrate to bind to the catalytic site. 
D) decrease the ability of the substrate to bind to the catalytic site.

Question 12

__________ reactions capture energy from the organisms' energy source.

Accepted Answer

The answer of __________ reactions capture energy from the organisms'...

Question 13

Cells carry out three major types of work; which of the following involves the synthesis of macromolecules as well as the breakdown of substances for their energy?

Accepted Answer

A) Chemical work 
B) Transport work 
C) Mechanical work 
D) None of the choices are correct.

Question 14

A positive allosteric effector will ____________ the activity of an enzyme while a negative effector will _______________ the activity.

Accepted Answer

The answer of A positive allosteric effector will ____________ the...

Question 15

A nonprotein component of an enzyme that is loosely attached to the protein component is referred to as a(n)

Accepted Answer

A) apoenzyme. 
B) coenzyme. 
C) holoenzyme. 
D) prosthetic group.

Question 16

Consider a biochemical pathway with five steps that lead to the production of product Q.If there is an abundance of product Q,the most efficient way to slow down the entire pathway would be to regulate _____________________.

Accepted Answer

A) the first enzyme in the pathway 
B) the last enzyme in the pathway 
C) every enzyme in the pathway

Question 17

RNA molecules that have catalytic activity are known as ____________.

Accepted Answer

The answer of RNA molecules that have catalytic activity are...

Question 18

The most commonly used practical form of energy used in cells is adenosine diphosphate.

Accepted Answer

A) True 
 B)False

Question 19

Where is the electron transport chain located in bacterial cells?

Accepted Answer

A) Plasma membrane 
B) Periplasm 
C) Mitochondrial inner membrane 
D) Mitochondrial outer membrane

Question 20

Which line illustrates an enzyme-catalyzed reaction?

Accepted Answer

A) Reaction 1 
B) Reaction 2 
C) Either Reaction 1 or Reaction 2 may be enzyme-catalyzed.

Exam 10: Introduction to Metabolism

The is the substrate concentration needed for an enzyme to achieve half maximal velocity.

One of the components used during photosynthetic electron transport is ferredoxin,a nonheme iron protein.

The most specific term usually used to describe a substance in a biological system that increases the rate of a reaction without being permanently changed by the reaction is a(n)

Isoenzymes are different enzymes that catalyze the same reaction but can be regulated independently of one another.

The __________ law of thermodynamics states that energy can be neither created nor destroyed.

The __________ is the electron donor in a redox reaction.

The reacting molecules in an enzyme-catalyzed reaction are called __________.

In order for the cell to be able to input energy into necessary endergonic reactions,energy-generating processes such as photosynthesis,fermentation,and respiration are used to produce __________.

If all available enzyme molecules are binding substrate and converting it to product as rapidly as possible,the reaction is said to be proceeding at __________ velocity.

Each enzyme normally has specific pH and temperature optima at which they function best.

The binding of a positive allosteric regulator molecule will

__________ reactions capture energy from the organisms' energy source.

Cells carry out three major types of work; which of the following involves the synthesis of macromolecules as well as the breakdown of substances for their energy?

A positive allosteric effector will the activity of an enzyme while a negative effector will ___ the activity.

A nonprotein component of an enzyme that is loosely attached to the protein component is referred to as a(n)

Consider a biochemical pathway with five steps that lead to the production of product Q.If there is an abundance of product Q,the most efficient way to slow down the entire pathway would be to regulate _____________________.

RNA molecules that have catalytic activity are known as ____________.

The most commonly used practical form of energy used in cells is adenosine diphosphate.

Where is the electron transport chain located in bacterial cells?

Which line illustrates an enzyme-catalyzed reaction?