Cells Flashcards
Multicellular-
A term used to describe an organism that is made up of many cells.
Microscope-
An instrument that uses glass lenses to magnify an object.
Bacteria-
A large group of one-celled organisms that sometimes cause disease.
Cell Membrane-
The outer boundary of the cytoplasm, a layer that controls what enters or leaves the cell.
Cytoplasm-
A thick, gelatin-like material contained within the cell membrane. Most of the work of the cell is carried out in the cytoplasm.
Nucleus-
The structure in a eukaryotic cell that contains the genetic material a cell needs to reproduce and function.
Eukaryotic cell-
A cell in which the genetic material is enclosed within a nucleus, surrounded by its own membrane.
Prokaryotic Cell-
A cell that lacks a nucleus and other organelles, with DNA that is not organized into chromosomes.
Organelle-
A structure in a cell that is enclosed by a membrane and that performs a particular function.
Cell Wall-
A protective outer covering that lies just outside the cell membrane of plant cells.
Chloroplast-
An organelle in a plant cell that contains chlorophyll, a chemical that uses energy from sunlight to make sugar.
Mitochondria-
Organelles that release energy by using oxygen to break down sugars.
Specialization-
The specific organization of a cell and it’s structure that allows it to perform a specific function.
Tissue-
A group of similar cells that are organized to do a specific job.
Organ-
A structure in a plant or an animal that is made up of different tissues working together to perform a particular function.
