Cell Energy at Grade 12
This worksheet covers key concepts of cell energy, including cellular respiration, photosynthesis, ATP, and the roles of mitochondria and chloroplasts.
Includes
Standards
Topics
Cell Energy: Photosynthesis and Cellular Respiration
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Read each question carefully and answer to the best of your ability. Show all your work for calculations.
1. Which of the following best describes the primary function of ATP in cells?
Storing genetic information
Providing energy for cellular processes
Building cell membranes
Transporting oxygen
2. The overall equation for cellular respiration is:
6CO₂ + 6H₂O + Energy → C₆H₁₂O₆ + 6O₂
C₆H₁₂O₆ + 6O₂ → 6CO₂ + 6H₂O + Energy
C₆H₁₂O₆ → 2C₂H₅OH + 2CO₂ + Energy
2C₂H₅OH + 2CO₂ + Energy → C₆H₁₂O₆
1. Photosynthesis occurs in both plant and animal cells.
True
False
2. The Krebs cycle takes place in the cytoplasm of the cell.
True
False
1. The organelle responsible for photosynthesis in plants is the .
2. The process of converting light energy into chemical energy is called .
3. Glycolysis is the first stage of cellular respiration and occurs in the .
1. Briefly explain the relationship between photosynthesis and cellular respiration.
2. Describe the role of the electron transport chain in cellular respiration.
Match each term on the left with its definition or associated process on the right.
1. Chloroplast
a. Site of cellular respiration
2. Mitochondria
b. Energy currency of the cell
3. ATP
c. Site of photosynthesis
4. Glucose
d. Product of photosynthesis; reactant in cellular respiration
Observe the diagram of a chloroplast below:
1. Label the following parts on the diagram: Thylakoid, Granum, Stroma, Outer membrane, Inner membrane.
2. In which part of the chloroplast do the light-dependent reactions of photosynthesis occur?