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Consider the reactions for photosynthesis and cellular respiration.

12a. Drag and drop the numbers into the table to show how many atoms of each type are represented on each side of the photosynthesis reaction.

(2 points)
Drop target 1
Drop target 2
Drop target 3
Drop target 4
Drop target 5
Drop target 6
Question 2
12b. Drag and drop the numbers into the table to show how many atoms of each type are represented on each side of the cellular respiration reaction.(2 points)
Drop target 1
Drop target 2
Drop target 3
Drop target 4
Drop target 5
Drop target 6

1 answer

To assist with the question, let's first outline the chemical equations for both photosynthesis and cellular respiration.

Photosynthesis

The equation for photosynthesis is: \[ 6 , \text{CO}_2 + 6 , \text{H}_2\text{O} + \text{light energy} \rightarrow \text{C}6\text{H}{12}\text{O}_6 + 6 , \text{O}_2 \]

Breakdown of Atoms in Photosynthesis:

  • Reactants (left side):

    • Carbon (C): 6 (from 6 CO₂)
    • Oxygen (O): 18 (from 6 CO₂ and 6 H₂O; 12 from CO₂ and 6 from H₂O)
    • Hydrogen (H): 12 (from 6 H₂O)
  • Products (right side):

    • Carbon (C): 6 (from 1 C₆H₁₂O₆)
    • Oxygen (O): 6 (from O₂) + 6 (from C₆H₁₂O₆)
    • Hydrogen (H): 12 (from C₆H₁₂O₆)

Summary of Atoms for Photosynthesis:

  • C (Carbon): 6 | 6
  • H (Hydrogen): 12 | 12
  • O (Oxygen): 18 | 18

Cellular Respiration

The equation for cellular respiration is: \[ \text{C}6\text{H}{12}\text{O}_6 + 6 , \text{O}_2 \rightarrow 6 , \text{CO}_2 + 6 , \text{H}_2\text{O} \]

Breakdown of Atoms in Cellular Respiration:

  • Reactants (left side):

    • Carbon (C): 6 (from C₆H₁₂O₆)
    • Oxygen (O): 12 (6 from O₂ and 6 from C₆H₁₂O₆)
    • Hydrogen (H): 12 (from C₆H₁₂O₆)
  • Products (right side):

    • Carbon (C): 6 (from 6 CO₂)
    • Oxygen (O): 18 (from 6 CO₂ and 6 H₂O; 12 from CO₂ and 6 from H₂O)
    • Hydrogen (H): 12 (from 6 H₂O)

Summary of Atoms for Cellular Respiration:

  • C (Carbon): 6 | 6
  • H (Hydrogen): 12 | 12
  • O (Oxygen): 12 | 18

Filling the Table:

Now you can input the numbers into the corresponding drop targets for both processes.

For Photosynthesis (12a):

  • Drop target 1 (C in reactants): 6
  • Drop target 2 (H in reactants): 12
  • Drop target 3 (O in reactants): 18
  • Drop target 4 (C in products): 6
  • Drop target 5 (H in products): 12
  • Drop target 6 (O in products): 18

For Cellular Respiration (12b):

  • Drop target 1 (C in reactants): 6
  • Drop target 2 (H in reactants): 12
  • Drop target 3 (O in reactants): 12
  • Drop target 4 (C in products): 6
  • Drop target 5 (H in products): 12
  • Drop target 6 (O in products): 18

Feel free to use these values as you complete your activity!