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- Please stay inside, thats not good for you! It can be very dangerous!
- Look Mom I just set up my new tent! I'm going to sleep under this tree tonight.
- No hunny, it's because of a process called photosynthesis where trees make their own food using sunlight
- WHY Mom! Your so annoying
- If you stayed out here in the nighttime with no sun, they trees will only go through respiration, which will produce carbon dioxide and that can be very harmful to your body.
- No, cellular respiration, not breathing. There are two types of cellular respiration. Aerobic, which requires oxygen to make ATP(food) and Anaerobic which doesn't require oxygen and may cause lactic acid.
- Anaerobic respiration produces less energy and doesn't require oxygen, but instead makes lactic acid which isn't good for you.Aerobic respiration requires oxygen and glucose, and it produces water, carbon dioxide and ATP energy.
- Respiration, like breathing?
- Well, there are 3 stages.Glyclosis (anaerobic) is where glucose is broken down to form pyruvic acid.Next, in the Krebs Cycle, which is a series of chemical reactions and then finally there is The Electron Transport Chain which shuffles from NADPH and FADH2 into molecular oxygen.
- What is the actual process of respiration Mom?
- Of course!There are two steps.In Light Reactions, sunlight energy is absorbed by chlorophyll and stored in the form of NADPH and ATP. In the Calvin Cycle, or Light Independent Reaction, the energized electrons and energy carrier molecules, provide energy to form carbohydrates from carbon dioxide molecules!
- Interesting...Is there a process like that for photosynthesis?
- It is interesting because animals get their energy from plants, which get their energy from photosynthesis and cellular respiration! This concept is very fascinating!
- Wow! So photosynthesis and cellular respiration must be really important to all organisms!
- Exactly!Heterotrophs who cant produce their own food instead rely on the carbohydrates produced in photosynthesis.
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