exam review COL Flashcards
smallest unit of life
cell
any living thing that has all the characteristics of life
organism
process by which organisms maintain a relatively stable environment
homeostasis
plant’s use the sun’s energy to convert water and carbon dioxide into sugars (glucose)
photosynthesis
process that releases energy by breaking down glucose and other food molecules
cellular respiration
the movement of molecules across cell membranes without using any energy
passive transport
the movement of materials through a cell membrane using energy
active transport
the process by which molecules from an area of higher concentration to an area of low concentration
diffusion
diffusion of water through a selectively permeable membrane
osmosis
the process during which a cell takes in a substance by surrounding it with the cell membrane
Endocytosis
process during which a cells’s vesicles release their contents outside the cell
Exocytosis
what are the three parts of the cell theory?
all living things are composed of cells, cells are the basic unit of structure and function in living things, and new cells come from prexsisting
what are the characteristics of prokaryote cells
no nucleus, DNA is inside the cytoplasm, bacteria cell,
what are the characteristics of eukaryotes?
has nucleus, DNA is inside the nucleus, plant or animal cell
list the four macromolecules
nucleic acid, lipids, proteins, carbohydrates
