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Cells Unit
5. Cell Energy
Question | Answer |
---|---|
Sun | Energy source for plants. |
Food | Energy source for animals. |
photosynthesis | the process by which plants, algae, and some bacteria use sunlight, carbon dioxide and water to make food. |
pigments | molecules that absorb light energy |
Chlorophyll | main pigment used in photosynthesis and gives plants their green color. It is also found in chloroplasts. |
two ways that animal cells get energy | cellular respiration and fermentation |
cellular respiration | the process by which cells use oxygen to produce energy from food. Food is broken down into carbon dioxide and water and energy is released. |
fermentation | the breakdown of food without the use of oxygen |
cell membrane | in prokaryotic cells (single celled), cellular respiration happens here. |
mitochondria | in eukaryotic cells (multicellular) cellular respiration happens here. |