Science: Photosynthesis vs cellular respiration Flashcards
(8 cards)
What is photosynthesis?
It is when plants and some other organisms use energy from the sun to convert carbon dioxide and water into oxygen and sugars.
What is cellular respiration?
It is when cells break down simple food molecules such as sugar and release the energy they contain.
What is required for the chemical reaction in photosynthesis?
Carbon dioxide and water turns sunlight into glucose and oxygen.
What is required for the chemical reaction in cellular respiration?
Glucose and oxygen turns into energy (ATP) and carbon dioxide.
In which organelles do these processes take place?
Photosynthesis takes place in chloroplasts, and cellular respiration takes place in the mitochondria.
How are photosynthesis and cellular respiration connected in the energy cycle of living organisms?
They connect because in photosynthesis carbon dioxide and waterturns sunlight into glucose and oxygen, and then in cellular respiration, the glucose and oxygen int ATP and carbin dioxide. Together they both pretty much are the cycle of energy.
Why do plant cells need to do both photosynthesis and cellular respiration?
The photosynthesis provides the plant cell with food, and then, like a heterotrophic organism, they convert the food and oxygen into ATP. Both processes give the cell different things, so they get everything that they need.
Why do plants need photosynthesis?
Because they’re autotrophs, they don’t consume food, so instead they make their own food out of the sun’s energy.
