UA BSC 108 ACTUAL EXAMINATION QUESTIONS WITH SOLUTIONS GRADED A+2025/2026

UA BSC 108 ACTUAL EXAMINATION QUESTIONS WITH
SOLUTIONS GRADED A+2025/2026
✔✔What are the steps of photosynthesis? - ✔✔Light reactions and Calvin cycle

✔✔What occurs at each step of photosynthesis? - ✔✔Light reactions: capture light
energy; Calvin cycle: fix CO2

✔✔Why are plants green? - ✔✔Chlorophyll pigments

✔✔What colors are responsible for photosynthesis? - ✔✔Red and blue

✔✔What are alternative forms of photosynthesis? - ✔✔C4 and CAM pathways

✔✔What is a photosystem? - ✔✔Protein complexes in the thylakoid membrane

✔✔What occurs in the Calvin cycle? - ✔✔Converts CO2 to glucose

✔✔Why is cellular respiration important? - ✔✔Produces ATP for cellular activities

✔✔Anaerobic vs. aerobic respiration - ✔✔Aerobic: uses oxygen; Anaerobic: does not

✔✔Where do the steps of cellular respiration occur and what is important about each
step of cellular respiration? - ✔✔Occurs in mitochondria, each step produces ATP and
intermediates

✔✔How much energy is made from cellular respiration? - ✔✔Up to 38 ATP per glucose

✔✔What is glycolysis? - ✔✔First step of cellular respiration, breaks down glucose

✔✔Where does it glycolysis occur? - ✔✔Cytoplasm

✔✔What do you get out of glycolysis? - ✔✔2 ATP, 2 NADH, and 2 pyruvate

✔✔How many ATP's does glycolysis produce? - ✔✔2 ATP net gain

✔✔Where do the steps of cellular respiration occur and what is important about each
step? - ✔✔Glycolysis in cytoplasm, Krebs cycle in mitochondrial matrix, ETC in
mitochondrial inner membrane

✔✔Why does cellular respiration use an electron transport chain? - ✔✔To create a
proton gradient for ATP production