UA BSC 108 EXAM 2 ACTUAL PAPER 2026
QUESTIONS WITH SOLUTIONS GRADED A+
◉ Photosynthesis equation (word).
Answer: Water + carbon dioxide + light energy → glucose + oxygen
◉ Photosynthesis equation (chemical).
Answer: 6H2O + 6CO2 + light energy → C6H12O6 + 6O2
◉ Stomata.
Answer: Pores in leaves where carbon dioxide enters the plant
◉ Chloroplast.
Answer: Organelle where photosynthesis occurs
◉ Stroma.
Answer: Fluid-filled space in chloroplast where Calvin cycle occurs
◉ Thylakoid membrane.
Answer: Inner membrane in chloroplast where light reactions occur
, ◉ Grana.
Answer: Stacks of thylakoids inside chloroplast
◉ Chlorophyll.
Answer: Green pigment that absorbs light energy
◉ Function of pigments.
Answer: Absorb solar energy for photosynthesis
◉ Why leaves are green.
Answer: Chlorophyll reflects green light but absorbs red and blue
light
◉ Light-dependent reactions.
Answer: Use sunlight to produce ATP and NADPH and release
oxygen
◉ Calvin cycle.
Answer: Uses ATP and NADPH to produce G3P (used to make
glucose)
◉ Electron transport chain (photosynthesis).
QUESTIONS WITH SOLUTIONS GRADED A+
◉ Photosynthesis equation (word).
Answer: Water + carbon dioxide + light energy → glucose + oxygen
◉ Photosynthesis equation (chemical).
Answer: 6H2O + 6CO2 + light energy → C6H12O6 + 6O2
◉ Stomata.
Answer: Pores in leaves where carbon dioxide enters the plant
◉ Chloroplast.
Answer: Organelle where photosynthesis occurs
◉ Stroma.
Answer: Fluid-filled space in chloroplast where Calvin cycle occurs
◉ Thylakoid membrane.
Answer: Inner membrane in chloroplast where light reactions occur
, ◉ Grana.
Answer: Stacks of thylakoids inside chloroplast
◉ Chlorophyll.
Answer: Green pigment that absorbs light energy
◉ Function of pigments.
Answer: Absorb solar energy for photosynthesis
◉ Why leaves are green.
Answer: Chlorophyll reflects green light but absorbs red and blue
light
◉ Light-dependent reactions.
Answer: Use sunlight to produce ATP and NADPH and release
oxygen
◉ Calvin cycle.
Answer: Uses ATP and NADPH to produce G3P (used to make
glucose)
◉ Electron transport chain (photosynthesis).