CSCC BIO 1111 EXAM 4 ACTUAL SCRIPT 2026
COMPLETE QUESTIONS AND CORRECT
ANSWERS GRADED A+
◉ What are the reactants and end products of the light reactions and
the light-independent reactions
(carbon reactions or Calvin Cycle)?
Answer: Light reactants- H2O, and light energy
Light end products- Oxygen, ATP, NADPH
Calvin Cycle reactants- ATP, NADPD, CO2
Calvin Cycle end products- Glucose
◉ What chemicals are produced during the light-dependent
reactions that fuel the light-independent
reactions?
Answer: ATP, NADPH
◉ . What is being oxidized and what is being reduced in
photosynthesis?
Answer: Water is oxidized; carbon dioxide is reduced
◉ What coenzyme is being used in Photosynthesis?
,Answer: NADP
◉ . The ATP and NADPH produced in the light-dependent reaction
stage goes to light independent
reaction (Calvin cycle). T/F
Answer: True
◉ The energy for ATP synthesis in chemiosmotic phosphorylation
comes from the movement of
hydrogen ions across a membrane down a concentration gradient.
T/F
Answer: True
◉ The MOLECULE that traps the sun's energy is called chlorophyll.
T/ F
Answer: True
◉ Noncyclic electron pathway or chemiosmotic
photophosphorylation is another name for light reaction. T/ F
Answer: True
◉ Photorespiration is related with C3 plants. T/F
Answer: True
, ◉ . C4 plants have more rate of photosynthesis than C3 in hot dry
summer. T/ F
Answer: True
◉ A photosystem contains pigments, a reaction center, and electron
acceptors. T/ F
Answer: True
◉ The stacks of double membrane structures found in chloroplast
are grana. T/ F
Answer: True
◉ Photosynthesis utilizes only visible light. T/ F
Answer: True
◉ Glucose
Answer: End product of Calvin cycle.
◉ Thylakoid membrane
Answer: Site of Light dependent reaction.
COMPLETE QUESTIONS AND CORRECT
ANSWERS GRADED A+
◉ What are the reactants and end products of the light reactions and
the light-independent reactions
(carbon reactions or Calvin Cycle)?
Answer: Light reactants- H2O, and light energy
Light end products- Oxygen, ATP, NADPH
Calvin Cycle reactants- ATP, NADPD, CO2
Calvin Cycle end products- Glucose
◉ What chemicals are produced during the light-dependent
reactions that fuel the light-independent
reactions?
Answer: ATP, NADPH
◉ . What is being oxidized and what is being reduced in
photosynthesis?
Answer: Water is oxidized; carbon dioxide is reduced
◉ What coenzyme is being used in Photosynthesis?
,Answer: NADP
◉ . The ATP and NADPH produced in the light-dependent reaction
stage goes to light independent
reaction (Calvin cycle). T/F
Answer: True
◉ The energy for ATP synthesis in chemiosmotic phosphorylation
comes from the movement of
hydrogen ions across a membrane down a concentration gradient.
T/F
Answer: True
◉ The MOLECULE that traps the sun's energy is called chlorophyll.
T/ F
Answer: True
◉ Noncyclic electron pathway or chemiosmotic
photophosphorylation is another name for light reaction. T/ F
Answer: True
◉ Photorespiration is related with C3 plants. T/F
Answer: True
, ◉ . C4 plants have more rate of photosynthesis than C3 in hot dry
summer. T/ F
Answer: True
◉ A photosystem contains pigments, a reaction center, and electron
acceptors. T/ F
Answer: True
◉ The stacks of double membrane structures found in chloroplast
are grana. T/ F
Answer: True
◉ Photosynthesis utilizes only visible light. T/ F
Answer: True
◉ Glucose
Answer: End product of Calvin cycle.
◉ Thylakoid membrane
Answer: Site of Light dependent reaction.
