Question

How are photosynthesis and cellular respiration similar?

Answer 1

Photosynthesis is the synthesis of glucose and from carbon dioxide and water and cellular respiration is the use of that glucose to make ATP and carbon dioxide and water as waste products.

Complete answer:
The two major processes by which animal and plant cells supply themselves with energy to perform their life processes are cellular respiration and photosynthesis. A glucose molecule is taken up by cellular respiration and combined with oxygen; energy in the form of ATP is the result, along with carbon dioxide and water as waste products. Photosynthesis takes carbon dioxide and mixes it with water, which, typically from the sun, is made possible by radiant energy. Glucose is the end product, with oxygen being the waste product.

Both are involved in energy production.
1.They involve exchange of gases.
2.The two processes take place in the cell organelle which are of endosymbiotic origin. They are chloroplast and Mitochondria. In Chloroplast, photosynthesis takes place where in mitochondria respiration takes place.
3.Both have alternative routes under critical circumstances.
4.Electron transport chain and chemiosmosis are involved in ATP production in both.

Note: 1.Photosynthesis involves the production of carbohydrates.
2.In respiration, carbohydrates are broken down.
3.Photosynthesis takes place in presence of sunlight while respiration takes place all time.