Chap 3 Science7A test Flashcards
organic compounds
compounds that contain carbon, hydrogen, and oxygen
carbohydrate
primary energy source in living things
mono saccharide
one sugar
lipid
stores energy long term
1 glycerol, 3 fatty acids
lipid
protein
make up the structure found in living things
amino acids
the base unit of a protein
peptide
amino acid block
dipeptide
amino acid bond
enzyme
protein
nucleic acid
stores info in a chemical code
passive transport
where small molecules or ions move across the membrane without input of energy by the cell
osmosis
the diffuision of water molecules from high to low
diffusion
the movement of molecules from high to low
active transport
where big molecules move across the membrane through carrier proteins
endocytosis
the cell membrane surrounds bacterium and engulfs it in a vesicle made of the cell membrane
exocytosis
proteins are made by the cell ribosomes and are packaged into vesicles, they then are removed through the cell membrane
semi permiable
only small molecules can get in or out
equilibrium
equal
food chain
a model that shows the flow of energy between several organisms
producer
organisms that make their own food (autotrophs)
consumer
primary, secondary, tertiary- organisms that cant make their own food (heterotrophs)
decomposer
organisms that break down dead or decaying organisms for energy
food web
a model that shows overlapping food chains in an ecosystem
