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⁺ is 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 =

Explanation:

1. Acetyl-CoA (2C) joins oxaloacetate (4C) to form 6C citric acid in the Krebs cycle.
2. Glycolysis splits glucose (6C) into two pyruvic acid (3C) molecules.
3. ATP stores and transfers energy in cells.
4. Glycolysis occurs in the cytoplasm, outside mitochondria.
5. Aerobic respiration requires oxygen and includes glycolysis, Krebs cycle, and electron transport.
6. Creatine regenerates ATP for muscle energy and is a supplement.
7. "Aerobic" means requiring oxygen.
8. FADH₂ donates electrons later in the electron transport chain, producing fewer ATP than NADH.
9. Oxygen is the final electron acceptor in aerobic respiration.
10. "Anaerobic" means without oxygen.
11. Lactic acid fermentation happens in human muscles (low O₂) and microbes for yogurt/cheese.
12. H⁺ ions are pumped into the intermembrane space during electron transport.
13. The Krebs cycle breaks down pyruvate into CO₂ and produces energy carriers.
14. NADH/FADH₂ pass electrons down the electron transport chain to make ATP.
15. H⁺ flow through ATP synthase spins it to produce ATP.
16. Pyruvic acid (pyruvate) is the 3C product of glycolysis.
17. Mitochondria are the "power plants" of cells, producing ATP via respiration.

Answer:

1. Citric acid
2. Glycolysis
3. ATP
4. Cytoplasm
5. Aerobic respiration
6. Creatine
7. Aerobic
8. FADH₂
9. Oxygen
10. Anaerobic
11. Lactic acid fermentation
12. Intermembrane space
13. Krebs
14. Electron transport
15. ATP synthase
16. Pyruvic acid; pyruvate
17. Mitochondria