Let’s solve this step by step.
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Part 1: Label the Diagram (Top Section)
We are looking at a simple diagram of photosynthesis with arrows showing what goes in and what comes out.
Recall:
Photosynthesis uses
sunlight,
carbon dioxide (CO₂), and
water (H₂O) to make
glucose (sugar) and
oxygen (O₂).
Looking at the top diagram:
- Arrow 1 → pointing from sun to plant → that’s
Sunlight or
Light Energy
- Arrow 2 → pointing from air (red dots) into leaf → those are
Carbon Dioxide (CO₂) molecules
- Arrow 3 → pointing from soil (blue dots) up through roots → that’s
Water (H₂O)
- Arrow 4 → pointing away from leaf into air → that’s
Oxygen (O₂) being released
- Arrow 5 → pointing to purple hexagons near stem/roots → these represent
Glucose (C₆H₁₂O₆) — the sugar made by the plant
So labels for top diagram:
1. Sunlight / Light Energy
2. Carbon Dioxide (CO₂)
3. Water (H₂O)
4. Oxygen (O₂)
5. Glucose (Sugar)
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Write the full equation for photosynthesis:
The chemical equation is:
6CO₂ + 6H₂O + light energy → C₆H₁₂O₆ + 6O₂
In words:
Carbon dioxide + water + sunlight → glucose + oxygen
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Part 2: Label the Chloroplast Diagram (Bottom Section)
This shows inside a chloroplast where photosynthesis happens.
Key parts:
- A = Sun → provides
light energy
- B = enters thylakoid stacks → likely
water (H₂O) (used in light reactions)
- C = grana (stacks of thylakoids) → site of
light-dependent reactions
- D = ATP and NADPH produced here → used in next stage
- E = stroma (fluid around grana) → site of
Calvin cycle
- F = CO₂ entering → used in Calvin cycle
- G = glucose/sugar output → product of Calvin cycle
- H = Calvin Cycle (also called dark reactions or carbon fixation)
- I = O₂ released as waste product from splitting water
Also note:
- The light reactions happen in the thylakoids (C), using light (A) and water (B) to make ATP, NADPH, and release O₂ (I).
- The Calvin cycle (H) happens in the stroma (E), using CO₂ (F) and energy carriers (ATP/NADPH from D) to make glucose (G).
So labeling bottom diagram:
A. Sunlight / Light Energy
B. Water (H₂O)
C. Thylakoids / Grana
D. ATP and NADPH (energy carriers)
E. Stroma
F. Carbon Dioxide (CO₂)
G. Glucose (C₆H₁₂O₆)
H. Calvin Cycle
I. Oxygen (O₂)
*(Note: Some diagrams may label “D” as just “Energy Carriers” or specify ATP & NADPH separately — but since it points to both boxes labeled ATP and NADPH, we can say “ATP and NADPH”)*
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✔ All steps checked. Labels match standard biology curriculum for middle/high school level.
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Final Answer:
Top Diagram Labels:
1. Sunlight
2. Carbon Dioxide (CO₂)
3. Water (H₂O)
4. Oxygen (O₂)
5. Glucose (C₆H₁₂O₆)
Full Equation for Photosynthesis:
6CO₂ + 6H₂O + light energy → C₆H₁₂O₆ + 6O₂
Chloroplast Diagram Labels:
A. Sunlight
B. Water (H₂O)
C. Thylakoids (or Grana)
D. ATP and NADPH
E. Stroma
F. Carbon Dioxide (CO₂)
G. Glucose (C₆H₁₂O₆)
H. Calvin Cycle
I. Oxygen (O₂)
Parent Tip: Review the logic above to help your child master the concept of photosynthesis diagrams worksheet.
