Cellular Respiration

Question 1

What process is the reason we produce carbon dioxide?

Answer 1

Krebs Cycle

Question 2

What is glycolysis?

Answer 2

Breaks glucose into 2 pyruvate molecules, producing ATP, NADH in the cytoplasm.

Question 3

What is the order of glycolysis?

Answer 3

Glucose➯6 Carbon Compound➯2 PGAL, AKA G3P➯2 3-Carbon molecules➯2 pyruvates (pyruvic acid)➯Splits off to Aerobic Respiration (Pyruvate to Krebs and ETC=Maximum ATP) or Anaerobic/Fermentation which splits into➯Lactic Acid or Ethyl Alcohol + CO2

Question 4

What is respiration?

Answer 4

The process by which cells break down simple food molecules to release the energy they contain.

Question 5

What occurs in the mitochondria?

Answer 5

biochemical processes of respiration and energy production.

Question 6

What is ATP?

Answer 6

Main energy source that cells use for most of their work.

Question 7

What does anaerobic mean?

Answer 7

Process that does not require oxygen.

Question 8

What does aerobic mean?

Answer 8

Process that requires oxygen

Question 9

What is Glycolysis?

Answer 9

The first step in releasing the energy of glucose, in which a molecule of glucose is broken into two molecules of pyruvic acid.

Question 10

What is the Krebs Cycle?

Answer 10

Second stage of cellular respiration, in which pyruvic acid is broken down into carbon dioxide in a series of energy-extracting reactions

Question 11

What is the electron transport chain?

Answer 11

A series of proteins in which the high-energy electrons (hydrogen) from the Krebs cycle are used to convert ADP into ATP; creates 30-34 ATP

Question 12

What is carbon dioxide?

Answer 12

A gas that is expelled from the body by the respiratory system as a result of the respiration process; this occurs during the Krebs cycle

Question 13

What is glucose?

Answer 13

The primary energy source for respiration

Question 14

What is the total number of ATP produced for cellular respiration?

Answer 14

36-38 ATP

Question 15

How is water made in cellular respiration?

Answer 15

Product of combining hydrogen with oxygen at the end of the electron transport chain.

Question 16

What is oxygen’s role?

Answer 16

The gas required in cellular respiration to be a hydrogen acceptor

Question 17

What happens to glucose during the process of glycolysis?

Answer 17

It splits into pyruvate molecules

Question 18

What is pyruvate?

Answer 18

3-Carbon compound that forms as an end product of glycolysis

Question 19

Where does the Krebs Cycle take place?

Answer 19

The innermost compartment of the mitochondria, the matrix

Question 20

Where does glycolysis take place?

Answer 20

The cytoplasm

Question 21

Where does the electron transport chain occur?

Answer 21

The mitochondrial membrane

Question 22

What is the net gain of ATP in glycolysis?

Answer 22

2 ATP

Question 23

What molecule does pyruvic acid turn into before entering the krebs cycle?

Answer 23

acetyl-CoA

Question 24

How many turns of the Krebs cycle occur per glucose molecule?

Answer 24

2 turns

Question 25

What do electrons do during the electron transport chain?

Answer 25

Assist in building a hydrogen concentration behind the membrane.

Question 26

What is the equation for cellular respiration?

Answer 26

C6H12O6 + 6O2 ➯ 6CO2 + 6H2O + Energy

(Glucose + Oxygen ➯ Carbon Dioxide + Water + Energy)

Question 27

What is a link reaction?

Answer 27

Pyruvate is converted into acetyl-CoA, a 2 carbon molecule. (Co2 lost-removed from pyruvate)