Question

cellular respiration review
name

1. is a 6 carbon molecule that is produced first when acetyl-coa joins with a 4 carbon molecule to enter the krebs cycle.
2. is the process of splitting a glucose molecule into 2 pyruvic acid molecules.
3. the molecule used by cells to store and transfer energy is .
4. glycolysis happens outside the mitochondria in the of the cell.
5. happens when oxygen is present and includes glycolysis, krebs cycle, and electron transport.
6. is a natural substance found in muscles that regenerates atp for extended energy which is used as a dietary supplement to increase muscle strength and performance.
7. this describes a process that requires oxygen =
8. is the high energy electron carrier that produces fewer atp’s than nadh because its electrons join the electron transport chain farther down the chain.
9. atmospheric gas required for aerobic respiration =
10. this describes a process that does not require oxygen; it means \without air\ =
11. type of fermentation used by human muscles in low oxygen conditions and microorganisms to make yogurt, cheese, pickles, sauerkraut and kimchi. =
12. as electrons pass down the electron transport chain during cellular respiration, h⁺ ions are pumped into the .
13. the cycle breaks down pyruvic acid into carbon dioxide and produces nadh, fadh₂, and atp.
14. the nadh and fadh₂ produced during the krebs cycle pass their electrons down the chain to produce atp.
15. the passage of h⁺ ions through causes it to spin and produce atp.
16. this 3 carbon molecule is produced during glycolysis when glucose splits in half = ; also called
17. cell organelle that acts as the cell’s power plant to burn glucose and store energy as atp, =
18. if oxygen is not present, glycolysis is followed by .
19. type of fermentation used to make bread dough rise and produce beer and wine. =

Explanation:

1. Acetyl-CoA (2C) + oxaloacetate (4C) forms 6C citric acid in Krebs cycle.
2. Glycolysis splits glucose into 2 pyruvate molecules.
3. ATP stores/transfers cellular energy.
4. Glycolysis occurs in the cytoplasm (outside mitochondria).
5. Aerobic cellular respiration needs O₂ and includes glycolysis, Krebs, ETC.
6. Creatine regenerates ATP for muscles, used as a supplement.
7. Aerobic processes require oxygen.
8. FADH₂ donates electrons later in ETC, producing fewer ATP than NADH.
9. O₂ is required for aerobic respiration.
10. Anaerobic means "without air" (no oxygen needed).
11. Lactic acid fermentation occurs in human muscles (low O₂) and makes yogurt/pickles.
12. H⁺ ions are pumped into mitochondrial intermembrane space during ETC.
13. Krebs cycle breaks down pyruvate into CO₂ and produces energy carriers.
14. NADH/FADH₂ pass electrons down the electron transport chain.
15. H⁺ flow through ATP synthase spins it to make ATP.
16. Glycolysis produces 3C pyruvic acid (pyruvate).
17. Mitochondria are the cell’s "power plant" for respiration.
18. Without O₂, glycolysis leads to fermentation.
19. Alcoholic fermentation makes bread rise (CO₂) and alcohol (beer/wine).

Answer:

1. Citric Acid
2. Glycolysis
3. ATP
4. Cytoplasm
5. Cellular Respiration
6. Creatine
7. Aerobic
8. FADH₂
9. Oxygen
10. Anaerobic
11. Lactic Acid
12. Intermembrane Space
13. Krebs
14. Electron Transport
15. ATP Synthase
16. Pyruvic Acid; Pyruvate
17. Mitochondria
18. Fermentation
19. Alcoholic