JMU BIO 140 LATEST 2026 EXAM PAPER
QUESTIONS AND ANSWERS SURE A+
✔✔Where does lactic acid fermentation occur? - ✔✔animals and bacteria
✔✔What is the key to lactic acid fermentation? - ✔✔it is glycolysis with the use of
pyruvate for electron from NADH
✔✔Where does ethanol fermentation occur? - ✔✔plants, fungi, bacteria
✔✔What is important about ethanol fermentation? - ✔✔glycolysis and acetaldehyde to
produce ethanol
✔✔What is the net yield for fermentation? - ✔✔2 ATP
✔✔What relies heavily on fermentation? - ✔✔-anaerobic bacteria
-anaerobic yeast
-muscle cells
-tumor cells
-mammalian red blood cells
✔✔What was the experiment done why Jan Baptist? - ✔✔-planted small willow plants
-mass of soil did not change
, -tree increased by 164 pounds
✔✔What did Jan Baptist's experiment conclude? - ✔✔water must be responsible for the
three's growth
✔✔Define photosynthesis - ✔✔biochemical process for building carbohydrates using
energy from sunlight and CO₂ from the air
✔✔Most marine photosynthetic organisms are _________. - ✔✔unicellular
✔✔What is the equation for photosynthesis? - ✔✔6CO₂ + 6H₂O -> C₆H₁₂O₆ + O₂
✔✔What is oxidized in the photosynthetic equation? - ✔✔water
✔✔What is being reduced in the photosynthetic equation? - ✔✔CO₂
✔✔Why is the water oxidized in the photosynthesis? - ✔✔to provide electrons for the
ETC
✔✔What are the two categories of reactions in photosynthesis? - ✔✔-light reaction
-carbon fixation reaction
✔✔What occurs in the light reaction of photosynthesis? - ✔✔-electrons transfer
reactions
-light excited electrons from H₂O
-Energy used to pump protons (ATP and NADPH is produced)
✔✔Where does the light reaction of photosynthesis occur? - ✔✔thylakoid membrane
✔✔What occurs in the carbon fixation reactions? - ✔✔-ATP and NADPH are used to 'fix'
CO₂ into organic compounds
✔✔Where does carbon fixation reactions occur? - ✔✔stroma
✔✔What is the grana? - ✔✔stacks of thylakoids
✔✔What is the lumen? - ✔✔inside of thylakoids
✔✔What is the stroma? - ✔✔space outside the thylakoids
✔✔Do plants need mitochondria because they have chloroplast? - ✔✔yes
✔✔The inner membrane of chloroplast is _______ to ATP and NADPH. -
✔✔impermeable
QUESTIONS AND ANSWERS SURE A+
✔✔Where does lactic acid fermentation occur? - ✔✔animals and bacteria
✔✔What is the key to lactic acid fermentation? - ✔✔it is glycolysis with the use of
pyruvate for electron from NADH
✔✔Where does ethanol fermentation occur? - ✔✔plants, fungi, bacteria
✔✔What is important about ethanol fermentation? - ✔✔glycolysis and acetaldehyde to
produce ethanol
✔✔What is the net yield for fermentation? - ✔✔2 ATP
✔✔What relies heavily on fermentation? - ✔✔-anaerobic bacteria
-anaerobic yeast
-muscle cells
-tumor cells
-mammalian red blood cells
✔✔What was the experiment done why Jan Baptist? - ✔✔-planted small willow plants
-mass of soil did not change
, -tree increased by 164 pounds
✔✔What did Jan Baptist's experiment conclude? - ✔✔water must be responsible for the
three's growth
✔✔Define photosynthesis - ✔✔biochemical process for building carbohydrates using
energy from sunlight and CO₂ from the air
✔✔Most marine photosynthetic organisms are _________. - ✔✔unicellular
✔✔What is the equation for photosynthesis? - ✔✔6CO₂ + 6H₂O -> C₆H₁₂O₆ + O₂
✔✔What is oxidized in the photosynthetic equation? - ✔✔water
✔✔What is being reduced in the photosynthetic equation? - ✔✔CO₂
✔✔Why is the water oxidized in the photosynthesis? - ✔✔to provide electrons for the
ETC
✔✔What are the two categories of reactions in photosynthesis? - ✔✔-light reaction
-carbon fixation reaction
✔✔What occurs in the light reaction of photosynthesis? - ✔✔-electrons transfer
reactions
-light excited electrons from H₂O
-Energy used to pump protons (ATP and NADPH is produced)
✔✔Where does the light reaction of photosynthesis occur? - ✔✔thylakoid membrane
✔✔What occurs in the carbon fixation reactions? - ✔✔-ATP and NADPH are used to 'fix'
CO₂ into organic compounds
✔✔Where does carbon fixation reactions occur? - ✔✔stroma
✔✔What is the grana? - ✔✔stacks of thylakoids
✔✔What is the lumen? - ✔✔inside of thylakoids
✔✔What is the stroma? - ✔✔space outside the thylakoids
✔✔Do plants need mitochondria because they have chloroplast? - ✔✔yes
✔✔The inner membrane of chloroplast is _______ to ATP and NADPH. -
✔✔impermeable
