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Plant factors affecting photosynthesis i...

Plant factors affecting photosynthesis include

A

number,age,size and orientiation of leaves mesophyll cells and chloroplast internal `CO_(2)` conccentratin the amount of chlorophyll

B

nature of leaves size of mesophyll cells and light

C

mesophyll cells distribution and temperature

D

quantity of chlorophyll size of leaves and `CO_(2)`

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### Step-by-Step Solution: 1. **Understanding Photosynthesis**: - Photosynthesis is the process by which plants convert sunlight, carbon dioxide, and water into glucose and oxygen. This process primarily occurs in the leaves of plants. 2. **Identifying Factors Affecting Photosynthesis**: - Factors affecting the rate of photosynthesis can be categorized into two groups: internal (plant factors) and external (environmental factors). 3. **Defining Internal Factors**: - Internal factors, also known as plant factors, are those that depend on the plant's genetic makeup. They include: - **Mesophyll Cells**: The cells in the leaf where photosynthesis occurs. There are two types: palisade (elongated) and spongy (round). - **Chloroplast Content**: The amount of chloroplasts in the leaf, which contain chlorophyll necessary for photosynthesis. - **Leaf Characteristics**: This includes the size, orientation, and age of the leaves. Younger leaves tend to have more chlorophyll and thus can perform photosynthesis more effectively. - **Internal CO2 Concentration**: The concentration of carbon dioxide within the plant, which can vary based on the plant type (e.g., C3 or C4 plants). 4. **Defining External Factors**: - External factors include environmental conditions such as: - **Light Intensity**: The amount of light available for photosynthesis. - **Water Availability**: Water is essential for the photosynthesis process. - **Carbon Dioxide Levels**: The concentration of CO2 in the atmosphere. - **Temperature**: Affects the rate of photosynthesis but is not a plant factor. 5. **Conclusion**: - The plant factors affecting photosynthesis include: - Mesophyll cell structure - Chloroplast content - Leaf size and orientation - Internal CO2 concentration - Quantity of chlorophyll
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