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Chapter 4

Photosynthesis, Respiration, Fermentation

Photosynthesis The process by which a cell captures energy in sunlight and uses it to make food
Autotroph An organism that can make its' own food
Heterotroph An organism that cannot make its' own food
Pigments Colored chemical compounds that absorb light
Chlorophyll The main photosynthetic pigment in chloroplasts
Stomata Small openings on the underside of a leaf
What substances enter and leave the stomata? carbon dioxide and oxygen
What are the raw materials for photosynthesis? carbon dioxide and water
What are the products of photosynthesis? sugar (glucose) and oxygen
Respiration The process by which cells obtain energy from glucose
Where does the first stage of respiration take place? The cytoplasm
Where does the second stage of respiration take place? The mitochondria
What are the raw materials for respiration? glucose sugar and oxygen
What are the products of respiration? carbon dioxide, water, and energy
Fermentation An energy-releasing process that does not require oxygen
What are the two types of fermentation? Alcoholic and lactic acid
Which type of fermentation occurs in your muscle cells? lactic acid fermentation
Which type of fermentation occurs when yeast breaks down sugars? alcoholic fermentation
What does "photo" mean? light
What are the small openings on the underside of leaves called? stomata
Name the process by which cells "withdraw" energy from glucose. respiration
What is the chemical equation for glucose? C6H12O6
During which stage of respiration is oxygen needed? 2nd
Where does lactic acid fermentation occur? muscles
How does fermentation differ from respiration? It does not require oxygen
Created by: Kusutasd