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Photosynthesis + Movements of Substances in Plants - Coggle Diagram
Photosynthesis + Movements of Substances in Plants
What is it?
A chemical that takes place in the chloroplasts of palisade cells, where light energy is used to convert carbon dioxide + water into glucose and oxygen
Plants make there own food using this process
STARCH
Potatoes contain starch
Made up of lots + lots of glucose molecules joined together
What plants need for Photosynthesis
Chlorophyll
Water + Carbon dioxide
Sunlight / light
Use of GLUCOSE
To make lipids (Group of insoluble substances including fats + oils. Used to make cell membranes)
To make starch (Made when many glucose molecules join together. Used as store of energy in plant cells)
To make cellulose (Made when many glucose molecules join together. Used to make cell walls)
To make amino acids (Small molecules used to make protein. Enzymes join glucose molecules together to form starch + to break down starch in the leaves)
For respiration (Process that releases energy in cells)
What plants need to survive
Carbon dioxide
Water
Minerals + Nutrients
Sunlight / light
Water + Minerals
For example, Magnesium is needed for Chlorophyll production
Calcium is needed for root growth
Plant roots absorb mineral salts including nitrates needed for healthy growth
How plants take water + Minerals in
Roots grow downwards + spread out under the ground to create a large surface area
Plants take in water and dissolved minerals through there roots
They also anchor the plant firmly to the ground
Root hair cells
Have a large surface area to absorb more water
XYLEM
Xylem Transports water + minerals from the roots up the plant stem and into the leaves
It is made of dead cells that lose there end walls to form a continuous hollow tube
Have walls that are thickened with lignin
Transpiration is the evaporation of water in the leaves + the loss of water vapour through the stoma. XYLEM uses this Process
Water is only pulled up, not down in the process
PHLOEM
Unlike xylem, Phloem vessels contain cytoplasm + this goes through holes from 1 cell to the next
PHLOEM Consists of living cells arranged end to end
This process is called translocation
Moves food substances produced by photosynthesis to where they are needed