Question

Drag and drop each label to the correct area of the Venn diagram. Some areas of the diagram may contain more than one answer.

Compare and contrast photosynthesis and cellular respiration using the Venn diagram below.

Answer 1

Here are the labels placed into the three areas of the Venn diagram (left = photosynthesis only, middle = both, right = cellular respiration only):

Photosynthesis only
- Occurs in chloroplasts (thylakoids and stroma)
- Uses sunlight / requires light
- Uses chlorophyll
- Reactants: CO2 + H2O
- Products: glucose (C6H12O6) + O2
- Equation: 6 CO2 + 6 H2O + light → C6H12O6 + 6 O2
- Stores energy (makes glucose)
- Uses NADP+ / NADPH

Both (overlap)
- Involve electron transport chain and chemiosmosis (proton gradient + ATP synthase)
- Produce ATP (photosynthesis: ATP in light reactions; respiration: ATP as usable energy)
- Involve redox reactions and electron carriers
- Use membranes to establish proton gradients (thylakoid membrane / inner mitochondrial membrane)
- Use ATP synthase
- Occur in living cells (plants perform both)

Cellular respiration only
- Occurs in mitochondria (and glycolysis in cytoplasm)
- Breaks down glucose to CO2 + H2O
- Reactants: glucose + O2
- Products: CO2 + H2O + ATP (heat)
- Equation: C6H12O6 + 6 O2 → 6 CO2 + 6 H2O + ATP
- Releases stored chemical energy (catabolic)
- Uses NAD+ / NADH and FAD / FADH2
- Occurs in virtually all organisms (heterotrophs and autotrophs)
- Produces CO2; consumes O2
- Pathways: glycolysis, Krebs (citric acid) cycle, electron transport chain

If you want, I can convert this to a labeled image or a simple drag-and-drop layout for printing.