click below
click below
Normal Size Small Size show me how
P and R Science Test
Photosynthesis and Respiration Test Study Guide
Question | Answer |
---|---|
What is an autotroph? | an organism that makes it's own food/energy (independent) Ex. plants |
What is a heterotroph? | an organism that depends on other organisms to supply their energy/food (dependent) Ex. humans and animals |
What is Chlorophyll? | a green pigment in the chloroplast |
What are Stomata? | an opening in the underside of a leaf. Lets out oxygen and brings in carbon dioxide |
What is Photosynthesis? | The process in which a plant captures energy from the sun- chlorophyll absorbs the energy in the chloroplasts (Stage One) uses sun energy, carbon dioxide, and water to make sugars for energy/food and oxygen (Stage Two) |
Carbon Dioxide + Water ------> Light Energy = Sugar + Oxygen | Photosynthesis, opposite for respiration |
What is respiration? | When cells break down sugars and release the energy |
What is Stage 1? | In the Cytoplasm, molecules of glucose are broken down into smaller molecules |
What is Stage 2? | In the Mitochondria, the smaller molecules use oxygen to further break down the molecules which releases the energy |
Sugar + Oxygen -----> Carbon Dioxide + Water + Energy | Respiration equation |
What is Fermentation? | When the body can't supply the cells oxygen anymore, fermentation supplies the cells with energy without using oxygen |
What are the two kinds of fermentation? | Alcoholic which occurs in yeast and Lactic Acid which occurs in muscles in the body |