Biology worksheet helping students compare photosynthesis and cellular respiration through matching exercises and diagrams.

Problem Overview:

The task involves matching terms with their correct definitions, filling in a table about cellular respiration and photosynthesis, describing the relationship between photosynthesis and cellular respiration using a provided diagram, and identifying which organisms perform photosynthesis and cellular respiration.

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Solution:

#### 1. Vocabulary Match
Match the phrases on the left with the term that best fits. Not all terms will be used, and some may be used more than once.

| Phrases on the Left | Terms on the Right |
|---------------------|--------------------|
| 1. Organisms that make their own food | A. Chloroplast |
| 2. Food source for heterotrophs | B. Autotrophs |
| 3. Process occurs in cytoplasm | C. Aerobic |
| 4. Cellular respiration requires oxygen | D. Anaerobic |
| 5. Energy storage molecules | E. ATP |
| 6. Energy storing molecules | F. Glycolysis |
| 7. The process of breaking down glucose | G. Mitochondria |
| 8. Energy currency of cells | H. Krebs cycle |
| 9. The process of splitting glucose | I. Lactic acid fermentation |
| 10. The ADP + P to work | J. Autotrophs |

Matching:
- 1. Organisms that make their own food → B. Autotrophs
- 2. Food source for heterotrophs → E. ATP
- 3. Process occurs in cytoplasm → F. Glycolysis
- 4. Cellular respiration requires oxygen → C. Aerobic
- 5. Energy storage molecules → E. ATP
- 6. Energy storing molecules → E. ATP
- 7. The process of breaking down glucose → F. Glycolysis
- 8. Energy currency of cells → E. ATP
- 9. The process of splitting glucose → F. Glycolysis
- 10. The ADP + P to work → E. ATP

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#### 2. Fill Out the Table Below
The table compares Cellular Respiration and Photosynthesis. The headings are "Reactants" and "Products." Use the information on the board (not shown here) to fill in the table.

| | Cellular Respiration | Photosynthesis |
|---------------|---------------------------|---------------------|
| Reactants | Glucose, Oxygen (O₂) | Carbon dioxide (CO₂), Water (H₂O), Light energy |
| Products | Carbon dioxide (CO₂), Water (H₂O), Energy (ATP) | Glucose, Oxygen (O₂), Energy (ATP) |

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#### 3. What is organic?
Organic refers to compounds that contain carbon and are typically associated with living organisms. In the context of cellular respiration and photosynthesis:
- Organic compounds include glucose (a sugar) and other carbohydrates, lipids, proteins, and nucleic acids.
- These compounds serve as energy sources or building blocks for life.

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#### 4. Use the picture to the right to help you describe the relationship between photosynthesis and cellular respiration.
The diagram shows the interconnected processes of photosynthesis and cellular respiration:

- Photosynthesis: Occurs in plants, algae, and some bacteria. It uses sunlight, carbon dioxide (CO₂), and water (H₂O) to produce glucose (an energy-rich organic molecule) and oxygen (O₂). This process stores energy in the chemical bonds of glucose.
- Equation: \( 6CO_2 + 6H_2O + \text{Light Energy} \rightarrow C_6H_{12}O_6 + 6O_2 \)

- Cellular Respiration: Occurs in almost all living organisms, including plants and animals. It breaks down glucose in the presence of oxygen to release energy (in the form of ATP), producing carbon dioxide (CO₂) and water (H₂O).
- Equation: \( C_6H_{12}O_6 + 6O_2 \rightarrow 6CO_2 + 6H_2O + \text{Energy (ATP)} \)

Relationship:
- Photosynthesis produces glucose and oxygen, which are essential reactants for cellular respiration.
- Cellular respiration consumes glucose and oxygen, releasing carbon dioxide and water, which are inputs for photosynthesis.
- This cycle ensures the continuous flow of energy and matter in ecosystems.

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#### 5. What kind(s) of organisms perform photosynthesis?
Photosynthesis is primarily performed by:
- Plants (e.g., trees, grasses, flowers)
- Algae (e.g., seaweed, phytoplankton)
- Certain bacteria (e.g., cyanobacteria)

These organisms use chlorophyll (found in chloroplasts) to capture light energy and convert it into chemical energy stored in glucose.

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#### 6. What kind(s) of organisms perform cellular respiration?
Cellular respiration is performed by:
- All living organisms, including:
- Plants
- Animals
- Fungi
- Protists
- Bacteria

This process is essential for extracting energy from glucose to power cellular activities.

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Final Answer:

1. Vocabulary Match:
- 1. → B
- 2. → E
- 3. → F
- 4. → C
- 5. → E
- 6. → E
- 7. → F
- 8. → E
- 9. → F
- 10. → E

2. Table:
- Cellular Respiration: Reactants = Glucose, Oxygen; Products = CO₂, H₂O, ATP
- Photosynthesis: Reactants = CO₂, H₂O, Light energy; Products = Glucose, O₂, ATP

3. What is organic? Organic refers to carbon-containing compounds like glucose, which are essential for life.

4. Relationship: Photosynthesis produces glucose and O₂, which are consumed in cellular respiration to release energy and produce CO₂ and H₂O, which are reused in photosynthesis.

5. Photosynthesis: Performed by plants, algae, and certain bacteria.

6. Cellular Respiration: Performed by all living organisms.

Boxed Final Answer:
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\boxed{
\text{See detailed solutions above.}
}
\]