Salma Ahmed
English Lit. GCSE Student
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Biology Coursework
- Words:
- 2293
- Submitted:
- Tue Sep 02 2008
- Mark submitted by Author:
Have a little read: ... Inside Living Cells Respiration - is the process of breaking down glucose to release energy which goes in every cell The energy is used to * Build up larger molecules (proteins) * Maintain body temperature * Contract muscles Aerobic respiration is respiration with air Anaerobic respiration is without air Glucose + Oxygen --> Carbon Dioxide + Water (Energy) Diffusion - the movement of particles from an area of higher concentration to an area of lower concentration Cells in the body need oxygen and glucose but they have a low concentration of them so oxygen and glucose is diffused from the blood in the capillaries to these cells The product of respiration is carbon dioxide, which leaves a high concentration of it in the cells, so they diffuse to the blood (where it is eventually breathed out) When exercising you respire more because your muscles need energy (which is a product of respiration) to contract. Breathing rate increases because you need
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