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22 terms

CELLS 3.1-3.3

types of cells, organelles and their functions
STUDY
PLAY
CELL THEORY
all organisms are made of cells, all existing cells are produced by other living cells, cells are the most basic unit of life
CYTOPLASM
jelly like substance that contains molecule building blocks
ORGANELLES
are structures specialized to perform distant processes within a cell
PROKARYOTIC CELL
do not have a nucleus or other membrane bound organelles
EUKARYOTIC CELLS
have a nucleus and other membrane bound organelles
CYTOSKELETON
a network of proteins that is constantly changing to meet the needs of a cell
NUCLEUS
is the storehouse of most genitic information, or DNA
ENDOPLASMIC RETICULUM
is a enter connected to folded membranes
RIBOSOMES
tiny organelles that link amino acids together to perform proteins
GOLGI APPARATUS
consists of closely layered stacks of membrane-- enclosed
, that processes, sorts, and delivers proteins (think of it as the UPS of the cell)
VESICLES
a general name used to describe small membrane bound sacs that divide some material from the rest of the cytoplasm
MITOCHONDRIA
supplies energy to the cell (think of the power house....or electric company supplying energy to your home!)
VACUOLE
is a fluid filled sac used for the storage of materials needed by cells (i think of a vacuum...or a storage unit)
LYSOSOMES
An organelle containing digestive enzymes
CENTRIOLES
found near the nucleus. microtublles that lend structure. Help with cell division- is two small structures
CELL WALL
A rigid structure that surrounds the cell membrane and provides support to the cell
CHLOROPLASTS
organelles that capture the energy from sunlight and convert it into chemical energy in a process called photosynthesis (little sunlight kidnappers)
CELL MEMBRANE
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PHOSPHOLIPID
The primary membrane lipid. Phospholipids consist of a glycerol molecule esterified to two fatty acid chains and a phosphate molecule. Additional, highly hyrohpilic groups are attached to the phosphate, making this molecule extremely amphipathic.
FLUID MOSAIC MODEL
model that describes the arrangement and movement of the molecules that make up a cell membrane
SELECTIVE PERMEABILITY
a process in which a membrane allows some molecules to pass through while keeping others out
RECEPTOR
protein that detects a signal molecule and performs an action in response