Introduction to Biology - C190 Unit 4 Test
Questions with complete solution 2026
Light-dependent step
1. On Earth, most life is dependent either directly or
in-directly on energy from the sun. You can trace
the path of energy through living things by
understanding photosynthesis and cellular
respiration.
Which step of photosynthesis involves energy
input from the sun?
2. Where does energy end up ultimately at the Glucose
end of photosynthesis?
3. Light-dependent cycle depends on the sun's light
4. Which explanation describes the process of photosyn- Light energy from the
thesis? sun is temporarily held by
ATP and NADPH mol-
ecules, which move it
to
the Calvin cycle where it is
stored in glucose.
5. What is the source of energy at the beginning of cellu- Glucose
lar respiration?
6. The electron transport chain is the third step in cellular Mitochondrian
respiration. It plays an important role in generating
ATP for the cell.
Where does the electron transport chain take place?
7. What role do NADH and FADH2 play in the They carry energetic
electron transport chain?
elec-trons from
glycolysis and the
Krebs cycle to begin
electron transport.
1/
2
Questions with complete solution 2026
Light-dependent step
1. On Earth, most life is dependent either directly or
in-directly on energy from the sun. You can trace
the path of energy through living things by
understanding photosynthesis and cellular
respiration.
Which step of photosynthesis involves energy
input from the sun?
2. Where does energy end up ultimately at the Glucose
end of photosynthesis?
3. Light-dependent cycle depends on the sun's light
4. Which explanation describes the process of photosyn- Light energy from the
thesis? sun is temporarily held by
ATP and NADPH mol-
ecules, which move it
to
the Calvin cycle where it is
stored in glucose.
5. What is the source of energy at the beginning of cellu- Glucose
lar respiration?
6. The electron transport chain is the third step in cellular Mitochondrian
respiration. It plays an important role in generating
ATP for the cell.
Where does the electron transport chain take place?
7. What role do NADH and FADH2 play in the They carry energetic
electron transport chain?
elec-trons from
glycolysis and the
Krebs cycle to begin
electron transport.
1/
2
