Cell Structure And Function Flashcards
What is a cell wall?
Dead layer that provides support, structure and protection to bacteria and plant cells
What is cell membrane
A thin flexible layer which regulates movement of material into and out of the cell
What is cytoplasm
A gel like substance composed primarily of water
What’s a chromatin
Contains DNA proteins which have been condensed. It’s found in non dividing cells and is the form of DNA used for protein synthesis
What are chromosomes
They form after DNA replication, only found in dividing cells. Protein synthesis can not occur when the DNA takes this form
What is cilia
Short hair like vibrating cellular projections, they are found in large numbers on the surface of certain cells
What is flagella
Slender hair like structures which enable some microorganism
What are centrioles
Rod like structures that help during cell division
What is the cytoskeleton
Protein fibers which make up the cells skeleton and moves organelles and vesicles throughout the cytoplasm
What are Organelles
Organelles are sub cellular structure that have one or more specific jobs to preform In the cell
The function of a ribosome?
The site of protein synthesis. Made of ribosomal RNA and proteins
Nucleus
Stores genetic material and controls cellular activities
Nucleolus
Produces ribosomal RNA
Rough Endoplasmic reticulum
Holds ribosome that produce proteins. It’s also stores and transfers protein around the cell
Smooth endoplasmic recticulum
Functions in lipid manufacturing, detoxification and the production of steroid hormones.
