Visual explanation of how photosynthesis and cellular respiration work together in plants, highlighting energy conversion and nutrient cycles.

Let's solve the problem step by step using the diagram and the context provided.

The image illustrates the interdependence of cellular respiration and photosynthesis in plants. The diagram shows:

- Photosynthesis: A leaf uses sunlight to produce food.
- Cellular Respiration: A plant (or organism) breaks down food to release energy.
- The cycle involves the exchange of gases and energy.

We are asked to fill in the blanks in the following paragraph:

> Cellular respiration and photosynthesis are interdependent. In a plant, before it can perform cellular respiration, it must make food through ____________. Photosynthesis transforms light energy into ____________ energy. To do this, it needs ____________ from the air, ____________ from the soil, and ____________. The chemical energy is stored in the food it produces - ____________. With the ____________ formed from photosynthesis, it can then break that molecule down through the process of cellular respiration. The ____________ (food) and ____________ from the air, combine in aerobic cellular respiration. This process releases gaseous ____________, liquid ____________, and energy in the form of ____________.

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Step-by-step Solution:

1. "In a plant, before it can perform cellular respiration, it must make food through ____________."

→ Plants make food via photosynthesis.

✔ Answer: photosynthesis

2. "Photosynthesis transforms light energy into ____________ energy."

→ Light energy is converted into chemical energy (stored in glucose).

✔ Answer: chemical

3. "To do this, it needs ____________ from the air, ____________ from the soil, and ____________."

- From the air: carbon dioxide (CO₂)
- From the soil: water (H₂O) (via roots)
- And sunlight (energy source)

✔ Answers: carbon dioxide, water, sunlight

4. "The chemical energy is stored in the food it produces - ____________."

→ The food produced is glucose (C₆H₁₂O₆).

✔ Answer: glucose

5. "With the ____________ formed from photosynthesis, it can then break that molecule down through the process of cellular respiration."

→ The molecule broken down is glucose.

✔ Answer: glucose

6. "The ____________ (food) and ____________ from the air, combine in aerobic cellular respiration."

- Food = glucose
- From the air = oxygen (O₂)

✔ Answers: glucose, oxygen

7. "This process releases gaseous ____________, liquid ____________, and energy in the form of ____________."

- Gaseous product: carbon dioxide (CO₂)
- Liquid product: water (H₂O)
- Energy released as ATP (adenosine triphosphate), or more generally, heat and ATP, but often simplified to ATP or chemical energy.

However, based on common phrasing in biology:
- Gaseous: carbon dioxide
- Liquid: water
- Energy: ATP (but sometimes "heat energy" is accepted too)

Since the diagram says "Stored chemical energy and heat energy", likely the intended answer is heat energy or ATP.

But in most textbook contexts for this level, it’s:

✔ Gaseous: carbon dioxide
✔ Liquid: water
✔ Energy: ATP (or chemical energy) — but since the diagram mentions "stored chemical energy and heat energy", perhaps heat energy is expected.

Let's go with ATP as the primary usable energy form.

However, many worksheets say "energy in the form of ATP".

✔ Final answers: carbon dioxide, water, ATP

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Final Filled-in Paragraph:

> Cellular respiration and photosynthesis are interdependent. In a plant, before it can perform cellular respiration, it must make food through photosynthesis. Photosynthesis transforms light energy into chemical energy. To do this, it needs carbon dioxide from the air, water from the soil, and sunlight. The chemical energy is stored in the food it produces - glucose. With the glucose formed from photosynthesis, it can then break that molecule down through the process of cellular respiration. The glucose (food) and oxygen from the air, combine in aerobic cellular respiration. This process releases gaseous carbon dioxide, liquid water, and energy in the form of ATP.

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Summary of Answers:

1. photosynthesis
2. chemical
3. carbon dioxide
4. water
5. sunlight
6. glucose
7. glucose
8. oxygen
9. carbon dioxide
10. water
11. ATP

✔ These fill in all the blanks accurately based on biological principles and the diagram.