11.1- Overview of photosynthesis

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  • Created by: Megan2413
  • Created on: 26-09-17 11:55
How is the waxy cuticle of a leaf adapted for photosynthesis?
It's transparent so it can let sunlight through to the photosynthesising mesophyll cells
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How is the upper epidermis adapted for photosynthesis?
It is thin as most light is absorbed in the first few micrometers of the leaf and it makes a short diffusion pathway
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What do air spaces allow?
Quick diffusion of gases from the stomata to the photosynthesising cells
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How are the stomata adapted for photosynthesis?
They open and close in response to the light intensity and allow exchange of gases involved in and out of the leaf
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Why are there so many stomata?
It ensures that each photosynthesising mesophyll cell is never too far away from diffusiong gases- shortening the diffusion pathway
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How do xylem and phloem play a role in photosynthesis?
Xylem carries water to the upper mesophyll cells and phloem carries away sugars produced during photosynthesis
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Give three whole leaf adaptation for photosynthesis
- Large surface area for maximum sunlight absorption - No overlapping of leaves on plant to allow maximum sunlight absorption- Thin for short diffusion pathway
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What is the balanced equation for photosynthesis?
6CO2 + 6H2O --> C6H12O6 + 6O2
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What are the two main stages of photosynthesis?
- Light dependent - Light independant
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Give four structures within a cholorplast
- Grana - Stroma - Double membrane - Lamellae
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What is the grana made of?
Thylakoid membrane
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Card 2

Front

How is the upper epidermis adapted for photosynthesis?

Back

It is thin as most light is absorbed in the first few micrometers of the leaf and it makes a short diffusion pathway

Card 3

Front

What do air spaces allow?

Back

Preview of the front of card 3

Card 4

Front

How are the stomata adapted for photosynthesis?

Back

Preview of the front of card 4

Card 5

Front

Why are there so many stomata?

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