Cell organelles Flashcards
What are organelles?
Small structure having definite shape and performing specific functions
Cell membrane
(Like a tea bag) Holds the cell together. Controls which substances can enter and exit the cell
Nucleus
Holds the genetic material of the cell (DNA) which controls the activates of the cell
cytoplasm
-A gel like substances composed of water and dissolved solutes
-Supports internal cell structures
-Site of many chemical reactions, including anaerobic respiration
Ribosomes
-Found in the cytoplasm
-Site of protein synthesis
Mitochondria
-Site of most the reactions involved in anaerobic respiration, where energy is released to fuel cellular processes
-Cells with high rates of metabolism (Carrying out many cell reactions) have significantly higher numbers of mitochondria than cells with fewer reactions taking place
Endoplasmic reticulum
(ER) is a structure which shares its membrane with the nucleus. The membrane is continuous.
Golgi apparatus
The Golgi apparatus prepares proteins and lipid (fat) molecules for use in other places inside and outside the cell.
Lysosomes
the digestive system of the cell
vacuole
It stores sugar ,mineral and water in the form of cell sap
Nucleolus
An area inside the nucleus of a cell that is made up of RNA and proteins and is where ribosomes are made
Chloroplast
plants and certain algae that is the site of photosynthesis
centrioles
preproduce
