Life Processes

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Terms in this set (...)

nucleus
The organelle that contains the DNA and controls the processes of the cell the brain of the cell
cell
the smallest unit that can perform all life processes
heterotroph
an organism that cannot make its own food
biotic
living organisms
response
a reaction to a stimulus
asexual reproduction
process by which a single parent reproduces by itself
sexual reproduction
process by which cells from two different parents unite to produce the first cell of a new organism
function
the job something does
structure
how something is made
prokaryote
a cell without a nucleus
organelle
a tiny cell structure that carries out a specific function within the cell
eukaryote
cell with a nucleus
multicellular
consisting of many cells
unicellular
having or consisting of a single cell
abiotic
non-living
internal stimulus
stimulus that comes from inside the body, ex. hungry = stomach growls,
external stimulus
a stimulus that comes from outside the body
autotroph
an organism that makes its own food
stimulus
a change in an organism's surroundings that causes the organism to react
cell theory
idea that all living things are composed of cells, cells are the basic units of structure and function in living things, and new cells are produced from existing cells
homeostasis
the ability of a living thing to keep conditions inside its body constant
cell membrane
a phospholipid layer that covers a cell's surface and acts as a barrier between the inside of a cell and the cell's environment
cytoplasm
the region of the cell within the membrane that includes the fluid, cytoskeleton, and all of the organelles except the nucleus