science Flashcards
(20 cards)
cell
in biology the smallest unit that can perform all life processes cells are covered by membrane and have DNA and cytoplasm
prokaryote
an organism that consist of a single cell that does not have a nucleus
eukaryote
an organism made up of cells that have a nucleus enclosed by a membrane
cell wall
a rigid structure that surrounds the cells membrane and provides support to the cells
ribosome
cell organelle composed or RNA and protein
endoplasmic reticulum
a systerm of membranes that is found in a cell`s cytoplasm and that assists in the production
mitochondrion
in eukaryotic cells the cell organelle that is surrounded by two membranes and that is the site of cellular respiration
vesicle
a small cavity or sac that contains materials in a eukaryotic cell
golgi complex
cell organelle that helps make and package materialist transported out of the cell
lysosome
a cell organelle that contais digesttive enzymes
organ
a collection of tissues that carry out a specialized function of the body
tissue
a group of similar cells that preform a common function
organ system
a group of organs that work together to preform body functions
organisms
a living ting
structure
the arrangement of parts in an organism
function
the special normal or proper activity of an organ or part
nucleus
the organize that contains the cells DNA
ribosome
the organization tin witch amino acids are hooked together to make proteins
vacule
the organism that stores water and other material
chioroplast
the organism that uses the energy of sunlight to make food
