Question 1
Which of the following is the correct balanced chemical equation for photosynthesis?
Correct Answer:
6CO₂ + 6H₂O → C₆H₁₂O₆ + 6O₂
Question 2
A student places a destarched plant in a sealed, transparent container under a bright light. After several hours, which TWO gases would be expected to show a net change in concentration inside the container?
Correct Answer:
Carbon dioxide decreases, Oxygen increases
Question 3
Which of the following statements correctly distinguishes between aerobic respiration and photosynthesis?
Correct Answer:
Respiration releases energy from glucose, while photosynthesis stores energy in glucose.
Question 4
In the absence of oxygen, yeast cells undergo anaerobic respiration. What are the main products of this process?
Correct Answer:
Ethanol and carbon dioxide
Question 5
A scientist is growing a water plant in a beaker of water with hydrogencarbonate indicator. The setup is placed under a lamp. Initially, the indicator is red. After one hour, it turns purple. What is the MOST likely limiting factor for photosynthesis at this point? (Indicator colours: Yellow = high CO₂, Red = normal CO₂, Purple = low CO₂)
Correct Answer:
Carbon dioxide concentration
Question 1
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Prepare with the CXC CSEC Exam practice quiz. This question bank includes 60 questions covering caribbean, business, table, database, and student. Use it to review important concepts, identify knowledge gaps, and build confidence for the related exam, course, or assessment.

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CXC CSEC Exam

This practice set contains 60 questions from the matching question bank and focuses on caribbean, business, table, database, and student. Work through each question carefully, review the provided solutions, and revisit topics that need more study before your next attempt.

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