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Leaf Structure & Adaptations for Photosynthesis

Leaf structure

Leaf Structure | Biology for GCSE/IGCSE - Year 11Leaf Structure | Biology for GCSE/IGCSE - Year 11

  • Pathway of carbon dioxide from the atmosphere to chloroplasts by diffusion:
    atmosphere → air spaces surrounding spongy mesophyll tissue → leaf mesophyll cells → chloroplasts

 Leaf Structure Table

Leaf Structure | Biology for GCSE/IGCSE - Year 11Leaf Structure | Biology for GCSE/IGCSE - Year 11

Adaptations of Leaf Structure for Photosynthesis Table

Leaf Structure | Biology for GCSE/IGCSE - Year 11Leaf Structure | Biology for GCSE/IGCSE - Year 11

The document Leaf Structure | Biology for GCSE/IGCSE - Year 11 is a part of the Year 11 Course Biology for GCSE/IGCSE.
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FAQs on Leaf Structure - Biology for GCSE/IGCSE - Year 11

1. What is the main function of the leaf structure in plants?
Ans. The main function of the leaf structure in plants is to carry out photosynthesis, where sunlight is converted into chemical energy (glucose) using chlorophyll.
2. How are leaves adapted for photosynthesis?
Ans. Leaves are adapted for photosynthesis through their thin, flat shape which maximizes sunlight absorption, and the presence of stomata that allow for gas exchange necessary for photosynthesis.
3. What are the different layers of a leaf and their functions?
Ans. The different layers of a leaf include the upper epidermis (protective layer), palisade mesophyll (where most photosynthesis occurs), spongy mesophyll (allows for gas exchange), and lower epidermis with stomata (regulates gas exchange).
4. How do plants obtain nutrients from the soil for photosynthesis?
Ans. Plants obtain nutrients from the soil through their roots, which absorb water and minerals necessary for photosynthesis. These nutrients are then transported to the leaves through the xylem and phloem.
5. Why is chlorophyll important for photosynthesis in plants?
Ans. Chlorophyll is important for photosynthesis in plants as it is a pigment that absorbs sunlight, allowing plants to convert light energy into chemical energy (glucose).
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