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Interactive worksheet for comparing photosynthesis and cellular respiration processes.

Diagram comparing photosynthesis and cellular respiration, showing chloroplasts and mitochondria with labeled inputs and outputs, including sunlight, carbon dioxide, water, oxygen, glucose, and ATP.

Diagram comparing photosynthesis and cellular respiration, showing chloroplasts and mitochondria with labeled inputs and outputs, including sunlight, carbon dioxide, water, oxygen, glucose, and ATP.

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Show Answer Key & Explanations Step-by-step solution for: Comparing Photosynthesis and Cellular Respiration worksheet | Live ...
Let's solve this step-by-step. The image is a diagram comparing photosynthesis and cellular respiration, showing the inputs, outputs, and locations of these two processes.

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🔍 Step 1: Understand the Diagram



- The green oval with stacked structures (thylakoids) is a chloroplast, where photosynthesis occurs.
- The red oval with folded inner membranes (cristae) is a mitochondrion, where cellular respiration occurs.
- The yellow suns represent sunlight, which is needed for photosynthesis.
- Arrows show the flow of materials.

We need to label the boxes using the word bank:

> Word Bank:
> Photosynthesis, Cellular respiration, Glucose, Carbon dioxide, Mitochondria, Water, Oxygen, Sunlight, ATP, Chloroplasts

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Labeling the Diagram



#### Top:
- The yellow sunSunlight
- Above the chloroplastChloroplasts
- Above the mitochondrionMitochondria

#### Inputs/Outputs:

Photosynthesis (in chloroplast):
- Inputs: Sunlight, Carbon dioxide, Water
- Outputs: Glucose, Oxygen

Cellular Respiration (in mitochondria):
- Inputs: Glucose, Oxygen
- Outputs: Carbon dioxide, Water, ATP

So, let’s assign the labels based on arrows:

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🟡 Photosynthesis Side (Green arrows from chloroplast)



- Sunlight → goes into chloroplast (from sun)
- Carbon dioxide → enters chloroplast
- Water → enters chloroplast
- Glucose → produced by chloroplast → goes to mitochondrion
- Oxygen → released as waste (to outside)

🔴 Cellular Respiration Side (Orange arrows from mitochondrion)



- Glucose → enters mitochondrion
- Oxygen → enters mitochondrion
- Carbon dioxide → exits mitochondrion
- Water → exits mitochondrion
- ATP → produced and used (energy output)

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Final Labeling (Based on Positions):



1. Top-left sun: Sunlight
2. Box above chloroplast: Chloroplasts
3. Box above mitochondrion: Mitochondria
4. Box next to chloroplast (left input): Carbon dioxide
5. Box below that (other input): Water
6. Box to right of chloroplast (output): Glucose
7. Box to right of mitochondrion (output): Carbon dioxide
8. Box below mitochondrion (output): Water
9. Bottom-right sun: ATP (represents energy released)

Wait — actually, the bottom-right sun is not sunlight but represents energy (ATP) being released. So it should be labeled ATP.

But in the diagram, the orange arrows go from mitochondrion to ATP (sun-like symbol), so yes — ATP is the energy product.

Also, Oxygen is produced in photosynthesis and consumed in respiration.

So let's map all:

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🔧 Completed Diagram Labels:



| Box Location | Label |
|--------------|-------|
| Top-left sun | Sunlight |
| Above chloroplast | Chloroplasts |
| Above mitochondrion | Mitochondria |
| Left input to chloroplast (top arrow) | Carbon dioxide |
| Left input to chloroplast (bottom arrow) | Water |
| Right output from chloroplast | Glucose |
| Right output from mitochondrion (top arrow) | Carbon dioxide |
| Bottom output from mitochondrion | Water |
| Bottom-right sun | ATP |

Now, the Oxygen is missing — it should be going out from chloroplast and into mitochondrion.

Looking at the diagram:

- There’s a green arrow from chloroplast → Oxygen → to outside?
- And an orange arrow from outside → mitochondrion → Oxygen?

Yes! So there are two more boxes:

- One on the right side of chloroplast, pointing out → Oxygen
- One on the left side of mitochondrion, pointing in → Oxygen

But in the image, we see:

- A box above the mitochondrion, already labeled Mitochondria
- A box to the right of chloroplast, likely for Oxygen
- A box to the left of mitochondrion, likely for Oxygen

Wait — looking again:

There are two small boxes near the mitochondrion:
- One on the left (input) → Oxygen
- One on the right (output) → Carbon dioxide
- One below → Water
- One above → Mitochondria

And on the chloroplast side:
- One on the rightGlucose
- One on the leftCarbon dioxide and Water
- But also, Oxygen must come out from chloroplast

Ah — there’s a box to the right of chloroplast, after glucose, which should be Oxygen

And one box to the left of mitochondrion, before it, which should be Oxygen

So final assignments:

- Box to the right of chloroplast: Oxygen
- Box to the left of mitochondrion: Oxygen
- Box to the right of mitochondrion: Carbon dioxide
- Box below mitochondrion: Water
- Box below chloroplast: Glucose
- Box above chloroplast: Chloroplasts
- Box above mitochondrion: Mitochondria
- Sun on left: Sunlight
- Sun on right: ATP

Wait — no: the bottom-right sun is ATP, and the bottom-left box is Glucose?

Let’s recheck the arrows:

- From chloroplast → Glucose → goes to mitochondrion
- From chloroplast → Oxygen → goes out
- From mitochondrion → Carbon dioxide and Water → go out
- From mitochondrion → ATP → energy output

So the boxes:

1. Sun on left: Sunlight
2. Box above chloroplast: Chloroplasts
3. Box above mitochondrion: Mitochondria
4. Box to left of chloroplast (top): Carbon dioxide
5. Box to left of chloroplast (bottom): Water
6. Box to right of chloroplast: Oxygen
7. Box to left of mitochondrion: Oxygen
8. Box to right of mitochondrion: Carbon dioxide
9. Box below mitochondrion: Water
10. Box below chloroplast (or between them): Glucose
11. Sun on right: ATP

But wait — only one box below chloroplast? It might be Glucose going down.

Actually, looking at the layout:

- Glucose is produced in chloroplast → flows down → into mitochondrion → so the box below chloroplast is Glucose
- Then Glucose enters mitochondrion → so the box to the left of mitochondrion is Glucose? But earlier we said Oxygen goes in.

Wait — confusion!

Let’s clarify:

The inputs to mitochondrion are:
- Glucose
- Oxygen

So both go into the mitochondrion.

Therefore, the two boxes leading into mitochondrion are:
- One: Glucose
- One: Oxygen

Similarly, outputs from chloroplast:
- Glucose
- Oxygen

So:

- Right side of chloroplast: Glucose and Oxygen — but only one box per side?

Wait — the diagram has:

- Two small boxes on the left side of chloroplast → for Carbon dioxide and Water
- One box on the right side of chloroplast → probably Glucose or Oxygen
- But both are products — so likely Glucose is going down, Oxygen is going right?

But the arrow from chloroplast to mitochondrion is Glucose, and Oxygen is released.

So:

- Box to the right of chloroplast: Oxygen (waste product)
- Box below chloroplast: Glucose (going to mitochondrion)

Then:
- Box to the left of mitochondrion: Glucose (entering)
- Box to the left of mitochondrion (another): Oxygen

But there are only two boxes on the left of mitochondrion?

Wait — looking at the diagram:

- On the left side, two boxes:
- Top one → connects to chloroplast → Carbon dioxide and Water (inputs to chloroplast)
- Bottom one → connects to mitochondrion → Glucose and Oxygen (inputs to mitochondrion)

But only one box per arrow.

So likely:

- Left side of chloroplast (top): Carbon dioxide
- Left side of chloroplast (bottom): Water
- Right side of chloroplast: Oxygen (output)
- Below chloroplast: Glucose (output, going to mitochondrion)
- Left side of mitochondrion (top): Oxygen (input)
- Left side of mitochondrion (bottom): Glucose (input)
- Right side of mitochondrion: Carbon dioxide (output)
- Below mitochondrion: Water (output)
- Sun on left: Sunlight
- Sun on right: ATP

Yes — that fits.

So final labeling:

| Position | Label |
|--------|-------|
| Sun (left) | Sunlight |
| Box above chloroplast | Chloroplasts |
| Box above mitochondrion | Mitochondria |
| Box left of chloroplast (top) | Carbon dioxide |
| Box left of chloroplast (bottom) | Water |
| Box right of chloroplast | Oxygen |
| Box below chloroplast | Glucose |
| Box left of mitochondrion (top) | Oxygen |
| Box left of mitochondrion (bottom) | Glucose |
| Box right of mitochondrion | Carbon dioxide |
| Box below mitochondrion | Water |
| Sun (right) | ATP |

Wait — but Glucose can't be in two places? No — it's the same molecule moving.

But the box below chloroplast is Glucose going to mitochondrion.

Then the box to the left of mitochondrion (bottom) is Glucose entering.

Same thing.

But Oxygen is produced in chloroplast and consumed in mitochondrion.

So:

- Box right of chloroplast: Oxygen
- Box left of mitochondrion (top): Oxygen

That works.

So now we have:

All boxes filled.

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Now Answer the Questions Below



> The outputs/products of photosynthesis are the _________ of cellular respiration.

Answer: inputs

Because glucose and oxygen from photosynthesis are used in cellular respiration.

> The outputs/products of cellular respiration are the _________ of photosynthesis.

Answer: inputs

Because carbon dioxide and water from respiration are used in photosynthesis.

> The purpose of photosynthesis is
→ To convert light energy into chemical energy (glucose) for plants and other organisms.

Answer: to produce glucose and oxygen using sunlight, carbon dioxide, and water

> The purpose of cellular respiration is
→ To release energy from glucose to produce ATP for cellular work.

Answer: to break down glucose to produce ATP for energy

> Photosynthesis is done by
Plants, algae, and some bacteria (but in context, likely plants or chloroplasts)

Answer: Chloroplasts (since the diagram shows chloroplasts)

> Cellular respiration is done by
All living cells (but in diagram, mitochondria)

Answer: Mitochondria

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Final Answers:



#### Diagram Labels:

- Sun (left): Sunlight
- Above chloroplast: Chloroplasts
- Above mitochondrion: Mitochondria
- Left of chloroplast (top): Carbon dioxide
- Left of chloroplast (bottom): Water
- Right of chloroplast: Oxygen
- Below chloroplast: Glucose
- Left of mitochondrion (top): Oxygen
- Left of mitochondrion (bottom): Glucose
- Right of mitochondrion: Carbon dioxide
- Below mitochondrion: Water
- Sun (right): ATP

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#### Written Answers:

1. The outputs/products of photosynthesis are the inputs of cellular respiration.
2. The outputs/products of cellular respiration are the inputs of photosynthesis.
3. The purpose of photosynthesis is to produce glucose and oxygen using sunlight, carbon dioxide, and water.
4. The purpose of cellular respiration is to break down glucose to produce ATP for energy.
5. Photosynthesis is done by chloroplasts.
6. Cellular respiration is done by mitochondria.

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This completes the worksheet.
Parent Tip: Review the logic above to help your child master the concept of cellular respiration worksheet middle school.
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