2.1 and 2.2 Flashcards
(23 cards)
Photosynthesis
the process by which a plant cell captures sunlight and uses it to make food
Autotrophs
organisms that can make their own food
heterotrophs
organisms that cannot
make their own food
What is the first stage of photosynthesis
chloroplasts in plant cells capture energy from sunlight
What is the second stage of photosynthesis
the captured light energy is used to produce sugars and oxygens from water and carbon dioxide
What are pigments
colored chemical compounds that absorb light
what is chlorophyll
the main photosynthetic pigment in chloroplasts
chloroplasts
the organelle responsible for capturing the light energy in the plant
what two raw materials do cells need?
water & carbon dioxide
stomata
small openings on the undersides of the leaves
What is the equation for photosynthesis
6CO2+6H20 —- C6H12O6+ 6O2
What is the equation for
cellular respiration
C6H12O6+6CO2+6H2O
What is the first step of cellular respiration
break down glucose in the cytoplasm
What is the second stage of cellular respiration
reaction with oxygen in the mitochondroa to produce water and carbon dioxide
what are the uses for sugar molecules
energy, cellulose, and stored for later use
what is respiration
the process by which cells obtain energy
What do plants save energy as
carbohydrates
What does respiration also mean
breathing
Cellular respiration
breaking down molecules to release energy
Comparison between photosynthesis and
cellular respiration
photosynthesis uses carbon dioxide and water to produce sugar and oxygen, meanwhile cellular respiration uses sugar and oxygen to create carbon dioxide and water
Fermentation
provides energy for
cells without using oxygen
2 types of fermentation
alcoholic fermentation and latic acid fermentation
