Lesson 5 Terms

Question 1

aerobic respiration

Answer 1

when cells use glucose and oxygen to produce energy

Question 2

Alcoholic fermentation

Answer 2

a) Occurs in plants and fungi

b) Pyruvate from glycolysis goes through a chemical process that produces alcohol and carbon dioxide

Question 3

Anaerobic cellular respiration

Answer 3

producing energy without using oxygen

Question 4

ATP

Answer 4

the chemical energy all cells need to thrive

Question 5

Cellular respiration

Answer 5

the process by which cells take glucose and turn it into usable energy

Question 6

Fermentation

Answer 6

Fermentation is the breaking down of sugar molecules into simpler compounds to produce substances that can be used in making chemical energy.

Question 7

Krebs Cycle

Answer 7

step 3 in aerobic respiration; a 5-step cycle of complex chemical reactions

Question 8

Oxidative phosphorylation

Answer 8

Step 4 in aerobic respiration; the electron transport chain

Question 9

Pyruvate oxidation

Answer 9

Step 2 of aerobic respiration;
The mitochondria turns the pyruvate, a 3-carbon molecule, into Acetyl CoA, a 2-carbon molecule.
Doing this, it loses 1 carbon which attaches to oxygen, creating the waste product carbon dioxide

Question 10

glycolysis
Where does it occur?
What takes place?
Does glycolysis require oxygen?

Answer 10

Step 1 of Aerobic respiration.

1. Occurs in the cytoplasm of the cell
2. The cell brings in glucose via active transport
3. Glucose, a 6-carbon molecule, is broken down into two pyruvates, which are 3-carbon molecules.
4. Glycolysis does not require oxygen