Quiz 3

Question 1

What is a type of metabolism that breaks materials down?

Answer 1

Catabolism.

Question 2

What participates at the start of a reaction?

Answer 2

Reactants.

Question 3

What kind of reactions refer to reactions when energy has been absorbed?

Answer 3

Endergonic.

Question 4

Explain no available energy to be used or released by cell.

Answer 4

Heat.

Question 5

What part of the enzyme binds with a substrate to form a complex?

Answer 5

Active site.

Question 6

When the substrate binds to the enzyme, what principle applies?

Answer 6

Induced fit.

Question 7

Energy transformation that results in a more disorganized state is what?

Answer 7

Entropy.

Question 8

An enzyme will lower which energy needed to begin a reaction?

Answer 8

Activation.

Question 9

What type of energy is associated with being available to do work?

Answer 9

Free.

Question 10

Which stage of respiration has FAD becoming FADH2?

Answer 10

Citric acid cycle.

Question 11

At what stage, a two carbon sized molecule will link with coenzyme A and become acetyl-CoA?

Answer 11

Preparatory stage.

Question 12

When will NADH+ H+ become oxidized to NAD?

Answer 12

Electron transport chain.

Question 13

By far, the most ATP generated occurs at what stage?

Answer 13

Electron transport chain.

Question 14

At what stage does a 2 carbon sized molecule join with a 4 carbon molecule and the 2 carbon molecule gets used up as CO2 and NADH is made?

Answer 14

Citric acid cycle.

Question 15

What stage are all carbons from the original glucose molecules gone?

Answer 15

Electron transport chain.

Question 16

During what stage is there a buildup of H+ in the intermembrane space?

Answer 16

Electron transport chain.

Question 17

The anaerobic process of cell respiration can occur after what stage?

Answer 17

Glycolysis.

Question 18

Electrons are going to a lower energy level at what stage?

Answer 18

Electron transport chain.

Question 19

The electron carrier molecules are found in the intermembrane space of what?

Answer 19

Cristae.

Question 20

A cell may inactivate an enzyme by adding/removing what?

Answer 20

Phosphate.

Question 21

Where does lymph enter the circulatory system?

Answer 21

Thoracic duct.

Question 22

What is a primary lymphoid organ: Lymph node, spleen, thymus, or nodule.

Answer 22

Thymus.

Question 23

Where do you find red and white pulp.

Answer 23

Spleen.

Question 24

What blood cell is not found in the lymph nodes?

Answer 24

NK cells.

Question 25

What has one way valves to prevent backflow?

Answer 25

Lymph vessels.

Question 26

What is an inorganic ion which may help an enzyme?

Answer 26

Coenzyme.

Question 27

What does a change to an enzyme’s shape due to extreme temperatures and/or pH do?

Answer 27

Denature.

Question 28

Briefly define oxidation.

Answer 28

Loses electrons.

Question 29

Briefly define reduction.

Answer 29

Gains electrons.

Question 30

How does a coupled reaction work?

Answer 30

The energy released from an exergonic reaction is used to fuel an endergonic one.

Question 31

What are two ways that enzyme inhibition may work?

Answer 31

The cell will bind a phosphate to the enzymes active site to temporarily denature it, so that it doesn’t speed up a certain reaction.
Too much substrate can cause too many reactions.

Question 32

How does chemiosmosis generate ATP?

Answer 32

H+ moving across semi-permeable membrane instead of water, energy released is used to make ATP. Movement from intermembrane space of cristae to matrix.

Question 33

What are the products produced from fermentation in a plant cell?

Answer 33

Ethyl alcohol and CO2.