UNIT 3 VOCAB AP BIO REVIEW

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Across
  1. 2. a step of aerobic (oxygen required) cellular respiration; electrons from acetyl-CoA are transferred to NADH and FADH₂, which will carry electrons to the electron transport chain; also known as the citric acid cycle
  2. 4. a step of photosynthesis; uses ATP and NADPH (from light reactions) and CO₂ to build organic molecules such as glucose
  3. 7. amino acid sequence of a protein; held together by covalent peptide bonds from carboxyl group to amino group
  4. 9. two or more polypeptide chains (subunits) forming functional protein; held together by ionic bonds, hydrogen bonds, and covalent bonds between amino acid R-groups
  5. 10. an electron carrier involved in photosynthesis; brings high-energy electrons from the light-dependent reactions to the Calvin cycle for carbon fixation
  6. 13. metabolic pathways that break down molecules (ex: cellular respiration); the breakdown of complex molecules to form simpler ones together with the release of energy
  7. 18. a series of membrane proteins that uses the energy from high energy electrons to produce ATP
  8. 20. large protein that uses energy from protons (H+) diffusing down their concentration gradient to bind ADP and a phosphate group together to produce ATP
  9. 21. the folds of the inner membrane of mitochondria; greatly increases the surface area
Down
  1. 1. 3D folding pattern of a protein due to side chain interactions; held together by ionic bonds, hydrogen bonds, and covalent bonds between amino acid R-groups
  2. 3. coiling or folding of a polypeptide due to hydrogen bonding between amino acids; alpha-helices and beta-pleated sheets
  3. 5. a step of the Calvin cycle of photosynthesis where CO₂ from the air is incorporated into organic molecules by autotrophic organisms
  4. 6. a step of photosynthesis; uses energy from light to produce ATP and NADPH
  5. 8. a step of aerobic (oxygen required) cellular respiration; electrons from NADH/FADH₂ are used in the electron transport chain to produce a large amount of ATP
  6. 11. when an endergonic (requires energy) reaction occurs because it is paired with an exergonic (releases energy) reaction
  7. 12. performs carbon fixation in the Calvin cycle of photosynthesis; the most abundant protein on Earth
  8. 14. all of the chemical reactions that occur within an organism
  9. 15. the fluid portion of the chloroplast; the site of the Calvin cycle
  10. 16. a step of cellular respiration; breaks down glucose to produce pyruvate, ATP, NADH, and CO₂
  11. 17. metabolic pathways that build larger molecules (ex: photosynthesis); the synthesis of complex molecules from simpler ones together with the storage of energy
  12. 19. a highly folded, disk-shaped membrane compartment inside chloroplasts; the site of the light-dependent reactions