Vocab. Flashcards
In biology, the smallest unit that can perform all life processes; cells are covered by a membrane and have DNA and cytoplasm.
Cell
A phospholipid layer that covers a cells surface; acts as a barrier between the inside of a cell and the cells enviorment
Cell Membrane
One of the small bodies in a cell’s cytoplasm that are specialized to perform a specific function.
Organelle
In an eukaryotic cell, a membrane-bound organelle that contains the cells DNA and that has a role in processes such as growth, metabolism, and reproduction.
Nucleus
An organism that consists of a single cell that does not have a nucleus
Prokaryote
An organism made up of cells that have a nucleus enclosed by a membrane; eukaryotes include animals, plants, and fungi, but not archaebacteria or eubacteria
Eukaryote
A rigid structure that surrounds the cell membrane and provides support to the cell.
Cell Wall
Cell organelle composed of RNA and protein; the site of protein synthesis
Ribosomes
A system of membranes that is found in a cells cytoplasm and that assists in the production, processing and transport of proteins and in the production of lipids.
Endoplasm Recticulum
In eukaryote cells, the cell organelle that is surrounded by two membranes and that is the site of repiration
Mitochondrion
Cell organelle that helps make and package materials to be transported out of the cell
Golgi Complex
A small cavity or sac that contains materials in a eukaryote cell
Vesicle
A cell organelle that contains digestive enzymes
Lysosome
A group of similar cells that perform a common function
Tissue
A collection of tissues that carry out a specialized function of the body
Organ
