Cellular Respiration

What is Respiration

Respiration- the process by which cells break down simple food molecules sucha s sugar and release the energy they contain.

During respiration, cells break down to release energy

Storing & Releasing Energy

During photosynthesis plants capture the energy from sunlight and “save” it in the form of carbohydrates including sugars and starches

When cells need the stored energy they withdraw it by breaking down the carbohydrates in the process of respiration

Breathing & Respiration

oxygen we breathe is required for cellular respiration

The 2 Stages of Respiration

stage 1: in cytoplasm, break down glucose, no oxygen required

stage 2: in mitochondria, break down glucose even more, oxygen required

each stage releases energy but 2 releases the most

The Respiration Equation

sugar + oxygen → carbon dioxide + water + energy 1

Comparing Photosynthesis & Respiration

Photosynthesis & Respiration can be thought of as opposite processes

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