Lesson 1 Flashcards
cell
The basic unit of all living things except viruses
nucleus
the central and most important part of an object, movement, or group, forming the basis for its activity and growth
cytoplasm
the material or protoplasm within a living cell, excluding the nucleus.
Cell membrane
the semipermeable membrane surrounding the cytoplasm of a cell.
Cell wall
a rigid layer of polysaccharides lying outside the plasma membrane of the cells of plants, fungi, and bacteria. In the algae and higher plants, it consists mainly of cellulose.
Mitochondria
an organelle found in large numbers in most cells, in which the biochemical processes of respiration and energy production occur. It has a double membrane, the inner layer being folded inward to form layers
Chloroplast
a plastid that contains chlorophyll and in which photosynthesis takes place.
Golgi complex
The Golgi complex, also known as the Golgi apparatus or simply the Golgi, is a cytoplasmic organelle. It is found in eukaryote cells, as in animals, plants, and fung
Endoplasmic reticulum
a network of membranous tubules within the cytoplasm of a eukaryotic cell, continuous with the nuclear membrane
Ribosome
a minute particle consisting of RNA and associated proteins, found in large numbers in the cytoplasm of living cells
Lysosome
an organelle in the cytoplasm of eukaryotic cells containing degradative enzymes enclosed in a membrane.
Vacuole
a space or vesicle within the cytoplasm of a cell, enclosed by a membrane and typically containing fluid.
