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Questions and Answers
What is the photosynthesis equation?
What is the photosynthesis equation?
- 6H20 + 6O2 --> C6H12O6 + 6C02
- 6C02 + 6H20 --> C6H12O6 + 6O2 (+Light Energy) (correct)
- 6C02 + 6H20 (+Light Energy) --> C6H12O6 + 6O2 (correct)
- C6H12O6 + 6O2 --> 6C02 + 6H20
Leaves in a plant are thick to help them grow upwards towards the sun.
Leaves in a plant are thick to help them grow upwards towards the sun.
False (B)
How do leaves obtain carbon dioxide?
How do leaves obtain carbon dioxide?
Through small holes called stomata.
What process allows water to leave the leaves?
What process allows water to leave the leaves?
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The layers of a leaf from top to bottom are: Cuticle, Upper Epidermis, _____, Spongy Layer, Lower Epidermis.
The layers of a leaf from top to bottom are: Cuticle, Upper Epidermis, _____, Spongy Layer, Lower Epidermis.
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Study Notes
Photosynthesis Equation & Formula
- The equation for photosynthesis is: 6CO2 + 6H2O + Light Energy → C6H12O6 + 6O2.
- This process transforms carbon dioxide and water into glucose and oxygen using light energy.
Leaf Structure and Adaptations
- Leaves are thin to facilitate quick diffusion of carbon dioxide and efficient release of oxygen during photosynthesis.
- Thin leaves also reduce weight, enabling plants to grow upwards towards sunlight instead of sprawling out flat.
Entry of Carbon Dioxide
- Carbon dioxide enters the plant through small openings called stomata, located on the underside of leaves.
- A single opening is referred to as a stoma, with multiple openings being stomata.
Water Loss Mechanism
- Water exits the leaves through transpiration, which involves evaporation through stomata.
- This process is essential for nutrient uptake and temperature regulation within the plant.
Layers of a Leaf
- The leaf structure, from top to bottom, consists of:
- Cuticle: A waxy layer that reduces water loss.
- Upper Epidermis: Protective layer that serves as a barrier.
- Palisade Layer: Packed with chloroplasts, where most photosynthesis occurs.
- Spongy Layer: Contains air spaces for gas exchange.
- Lower Epidermis: Houses stomata for gas exchange and also provides protection.
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