Test 2 Chapter 8 Kahoot

Question 1

Where does oxidative phosphorylation occur in prokaryotes?

Answer 1

Cytoplasmic Membrane

Question 2

Cellular respiration results in the oxidation of _____ to _____ to ______

Answer 2

Glucose to Carbon Dioxide to water

Question 3

Cyanide binds to cytochrome c oxidase. What effect would this have on the cell?

Answer 3

Electrons cannot flow through the ETC (electron transport chain) and ATP synthesis stops

Question 4

During which of the following is the highest ATP yield generated?

Answer 4

Oxidative phosphorylation and chemiosmosis

Question 5

How is a proton motive force generated.

Answer 5

The electron transport chain carries excited electrons through a series of proteins to generate a proton motive force

Question 6

The transfer of H+ across a membrane. In cellular respiration it is used to power ATP synthase.

Answer 6

Chemiosmosis

Question 7

In the nitrogen cycle bacteria participate in ______

Answer 7

Denitrification, ammonification, and nitrification.

Question 8

Cyanobacteria are capable of what kind of fixation?

Answer 8

Cyanobacteria can do both carbon and nitrogen fixation.

Question 9

What bacteria participates in the sulfur cycle?

Answer 9

Chemoautotrophic bacteria

Question 10

Bacteria such as Bacillus convert nitrates into nitrogen gas allowing it to reenter the atmosphere. This is _____.

Answer 10

Denitrification

Question 11

Carbon Dioxide is the source of atmospheric carbon. T/F

Answer 11

True

Question 12

What is the first step of lipid catabolism?

Answer 12

Lipases hydrolyze triglycerides

Question 13

During lipid catabolism fatty acids undergo Beta-Oxidation to create _______.

Answer 13

acetyl Co-a, NADH, and FADH2

Question 14

Bacillus subtilis is a soil microbe that can digest the protein keratin. Which of the following must be produced?

Answer 14

Protease

Question 15

Before an amino acid can be metabolized the amino group must be removed by the process of _____.

Answer 15

deamination

Question 16

Candida albicans is lipase positive. This means it has the ability to metabolize _____.

Answer 16

Lipids

Question 17

Lipases hydrolyze fatty acids to create a ______ and _________.

Answer 17

glycerol and three free fatty acids.

Question 18

What resource can enter glycolysis?

Answer 18

Glycerol

Question 19

What is the name of the process in which larger molecules are broken into smaller products to release energy.

Answer 19

Catabolism

Question 20

How do enzymes catalyze reactions?

Answer 20

By lowering activation energy.

Question 21

What are enzyme catalysts reactions incapable of doing?

Answer 21

Increasing/Decreasing the Delta-G

Question 22

When electrons are transferred from a donor to an acceptor in a detox reaction, what happens to the donor?

Answer 22

The donor becomes oxidized

Question 23

Extremes in ______ can disrupt an enzyme by causing it to denature.

Answer 23

pH

Question 24

A site on an enzyme other than the active site that can bind molecules and influence the shape of the active site is __.

Answer 24

The Allosteric Site

Question 25

Egg white is rich in the protein albumin, raw it is opaque and viscous but when cooked it is white and firm. Why?

Answer 25

The albumin was denatured. The heat caused the protein to unravel.

Question 26

Sucrose is a disaccharide that binds to sucrase causing glucose and fructose to be produced. What is the substrate?

Answer 26

Sucrose is the substrate

Question 27

Glycine is a neurotransmitter. Strychnine binds to the glycine receptor and alters its structure. This is an example of

Answer 27

Non-Competitive inhibition. The active site is modified by the Strychnine binding to the allosteric site.

Question 28

What resource in the energy cycle is like an Uber driver?

Answer 28

NADH shuttles molecules from reaction to reaction.

Question 29

A species of bacteria uses inorganic compounds as their source of energy and their carbon source. These are _____.

Answer 29

Chemoautotrophs

Question 30

When a NADP+ reacts to form NADPH it has been ______.

Answer 30

reduced

Question 31

What is the function of photosystems within cells?

Answer 31

To absorb light and convert it to ATP and NADPH

Question 32

Photosystems are involved in both light-dependent reactions and light-independent reactions. T/F

Answer 32

False

Question 33

In noncyclic photophosphorylation organisms must constantly replenish ___ to the reaction center of photosystem II.

Answer 33

Electrons

Question 34

Which of the following is the first step in the Calvin Cycle?

Answer 34

Carbon Fixation

Question 35

Why must ribulose bisphosphate (RuBP) be regenerated during the Calvin-Benson cycle?

Answer 35

It is needed to "catch" the incoming CO2 so carbon fixation can continue

Question 36

The inputs for the Calvin-Benson cycle are _____, _____, and _____.

Answer 36

CO2, NADPH, and ATP

Question 37

Where do the H+ used in the generation of ATP in the light -dependent reactions come from?

Answer 37

They are produced when water is split in photosystem II

Question 38

Photosynthesis is always oxygenic. T/F

Answer 38

False

Question 39

The direct transfer of phosphate between substrates is called _____.

Answer 39

Substrate level phosphorylation

Question 40

How many molecules of pyruvate are produced by glycolysis?

Answer 40

Two

Question 41

How many net molecules of ATP are produced by glycolysis?

Answer 41

Two

Question 42

How many molecules of FADH2 are per initial glucose by the Krebs cycle?

Answer 42

Two

Question 43

How many molecules of NADH are generated per turn of the Krebs cycle?

Answer 43

Three

Question 44

Which of the following is/are produced by the Krebs cycle?

Answer 44

NADH, GTP/ATP, and FADH2 are all produced.

Question 45

During glycolysis electrons and hydrogens are harvested from glucose. The absence of _____ would slow glycolysis down.

Answer 45

NAD+ because it needs to pick up the hydrogen.

Question 46

The transition reaction is often called "oxidation of pyruvate." Why is this an appropriate name?

Answer 46

As pyruvate is converted to electrons and transferred to NAD+

Question 47

Glycolysis occurs in the _____.

Answer 47

Cytoplasm