Transpiration

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• Photosynthesis- A process by which plants convert sunlight, water, and carbon dioxide into food (sugar), oxygen, and water.
• This process is the major source for oxygen in our atmosphere. Without it life on Earth would not exist!
• Chloroplast- A cell organelle in plants containing chlorophyll where photosynthesis takes place.
• Chlorophyll- A green molecule which uses light energy to change water and carbon dioxide into sugar and oxygen. A requirement for the process of photosynthesis.

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H2O + CO2 + light → O2 + C₆H₁₂O₆

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Water + Carbon + sun → Oxygen + glucose

Dioxide (sugar)

The Process of Photosynthesis

• Respiration- The process by which the chemical energy of "food" molecules is released and changed into ATP (physical energy).
• Mitochondria- Rod-shaped organelles in plants which converts the energy stored in glucose into ATP for the cell.

O2 + C₆H₁₂O₆ → H20 + CO2 + ATP

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Oxygen + glucose → water + carbon + energy

(sugar) dioxide

The Process of Respiration

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Transpiration

Transpiration

• During the processes of Photosynthesis & Respiration loss of water can occur. This is known as transpiration.
• Transpiration occurs when the guard cells of the plants’ leaves open up allowing for the water to escape.
• The opening and closing of those cells allows for the plant to regulate this process not allowing the plant to lose too much water.