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B4 - End of Topic - Coggle Diagram
B4 - End of Topic
L1 - Aerobic Respiration
Respiration is an exothermic process because energy is released as a result (surroundings are heated). Plants respire aerobically through the stomata
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Energy can be used in the body for such processes as:
- Muscle contraction
- Maintaining body temperature
- Building up larger molecules
- Building up sugars (plants)
- Cell division
- Active transport
The body aids in respiration by acting as a transportation medium via the blood, pumping blood around the body via the heart, engenders breathing to maintain a concentration gradient for gas exchange, digests large insoluble molecules and stores glucose as glycogen.
During exercise, the body requires more respiration (inhalation of reactants and exhalation of products).
As a result of exercise: breathing rate increases, breathing depth increases, volume of blood pumped per heart beat increases and heart rate increases. As well as this, glucose stores decrease.
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L5 - Photosynthesis
To produce glucose, a plant requires water(moves into roots via osmosis, moves through the plant via transpiration in the xylem), sunlight and carbon dioxide(diffuses through the stomata, into the leaves).
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Photosynthesis is an endothermic reaction, it takes in energy from the surroundings into the chloroplasts, cooling the surroundings.
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L4 - Metabolism
Metabolism is the sum of all chemical reactions in a cell or organism. Metabolism includes the formation and break-down of molecules.
Metabolism includes such reactions as the conversion of glucose to starch, gylcogen and cellulose, the making of lipids (sometimes stored in seeds), the making of proteins and respiration.
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L6 - Uses of Glucose
Glucose produced through photosynthesis can be used for:
- The storage of glucose as starch
- Use in respiration
- Used to produce fat or oil
- Used to produce cellulose
- Used to produce amino acids for protein-synthesis