Ch. 3 Cell Processes
Terms in this set (25)
a combination of substances in which individual substances retain their own properties. Can be solids, liquids, gases, or combination
always contain carbon and hydrogen, associated with living things
supply energy for cell processes (sugars and starches)
fats and oils (do not mix with water) that store and release large amounts of energy (includes phospholipids)
made up of amino acids. Important for muscle production and cell membranes
proteins that regulate chemical reactions within cells
molecules that store coded information. (example: DNA and RNA)
do not contain carbon; living things need inorganic compounds in order to survive (example: salt, water, etc)
movement of molecules from a crowded area to a less crowded area (high to low concentration). continues until an equilibrium is reached.
type of lipid that makes up our cell membranes
water loving (outside of phospholipid bilayer)
water fearing (inside of phospholipid bilayer)
allows some things through (also called selectively permeable)
the diffusion of water from a high concentration to a low concentration
equilibrium or homeostasis state
cell swells and can burst. plants swell and have a lot of pressure built up.
water moves out of cell. cell shrivels and can die
movement of materials through a cell membrane using cellular energy (ATP). Occurs in one way
movement of materials through a cell membrane without using cellular energy (ATP). Occurs in three ways.
the process of taking substances into a cell by surrounding it with its membrane
releasing substances through a vesicle
the total of all chemical reactions in an organism
producers use light energy and make sugars, which can be used as food
chemical reactions occur that break down food molecules into simpler substances and release their store energy
process of releasing energy without oxygen. Produces carbon dioxide and alcohol OR carbon dioxide and lactic acid as a waste.
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