Definitions
having only one cell
what is unicellular
everything within the cell membrane except the nucleus, the jelly-like substance that holds everything together
what is the cytoplasm
a type of pigmented plastid - found in plants and algae; converts light energy from the sun into chemical energy
what is the chloroplast
found mostly in plants and is storage
what is the central vacuole
decides what goes in and out of the cell with phospholipids
what is the lipid bilayer
multicellular
a system of fivers in the cytosol that helps maintain the cell's shape and provides protein motors and a track to move substances around the cell
what is the cytoskeleton
found inside chloroplasts; made of stacks of thylakoids which contain the green pigment chlorophyll to carry out photosynthesis
what is the geranium
provides strength and rigidity to the cell - contains pores so that materials can pass through it
what is the cell wall
contains digestive enzymes
what are lysosomes
describes cells lacking a true nucleus and membrane sound organelles
what is a prokaryote
found in bacteria outside the cell membrane and cell wall; protects the cell - contains water to keep the cell from drying out and makes it feel slimy
what is the capsule
found in both prokaryotes and eukaryotes because it is not surrounded by a membrane, contains proteins and RNA
what is the ribosome
the control center of the cell
what is the nucleus
the post office of a cell by receiving substances from the ER and packages them into membrane sacs
what is the Golgi apparatus
describes cells having a true nucleus as well as membrane-bound nucleus
what is eukaryotic
found in prokaryotes, contains the genetic material for the cell - floats freely in the cytosol
what is the nucleoid
transports compounds around the cell and helps maintain the cell's shape and is studded with ribosomes
what is the rough endoplasmic reticulum
contains RNA and proteins; where ribosomes are assembled
what is the nucleolus
builds parts for the exoskeleton
what are the centrosomes
the movement of substances across a cell membrane from regions of low concentration to regions of high concentration by any means that requires the use of energy
what is active transport
extension of the cytoskeleton, usually only one or a few on a cell; propels the cell through its environment
what is the flagellum
transports compounds around the cell and helps maintain the cell's shape and breaks down toxic substances in liver cells
what is the smooth endoplasmic reticulum
the genetic material of the nucleus - contains DNA, RNA, and proteins
what are the chromatin
the powerhouse of the cell