COMPREHENSIVE TEST PAPER 2026
COMPLETE ANSWERS ACCURATE
⫸ What happens to H2O during the light reactions? Answer: It is split
to produce O2.
⫸ What does the Calvin cycle produce? Answer: Glucose from CO2.
⫸ What is DCPIP used for in photosynthesis experiments? Answer: To
determine the rate of electron transport.
⫸ What happens to DCPIP when it accepts electrons? Answer: It turns
from blue to colorless.
⫸ How does the absorbance of DCPIP relate to the rate of electron
transport? Answer: When absorbance decreases, the rate of electron
transport increases.
⫸ What is metabolism? Answer: The body's chemical reaction of taking
energy from food for daily functions.
⫸ What are catabolic pathways? Answer: Pathways that break large
molecules into smaller ones.