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Cell Structure and Function
Transcript of Cell Structure and Function
What do we know about Animal and Plant cells?
Cellulose is the fibrous material that makes up cell walls.
Every cell has a cell membrane.
Separates the inside contents from the outside.
Holds in fluids, chemicals, and structures that the cell needs to survive.
Cell's front line of communication
Proteins in the membrane can interact with other cells and detect chemicals in the environment.
Composed mainly of
Created by the Golgi Apparatus
Store or transport materials in and out of the cell.
Jelly-like suspension that fills the cell
Keeps organelles in their place
The boss of the cell
Manages all the cell's activities
Stores all the DNA
Ribosomes are produced here.
Messenger DNA leaves the Nucleus here
The membrane encasing the nuclear contents
Messenger molecules attach to ribosomes.
Ribosomes translate information on the messenger molecules into proteins
Proteins carry out cellular functions
A network of folded membranes and tubes connected to the nucleus. Two types of membranes.
Studded with ribosomes
The rough endoplasmic reticulum packages proteins for transport in vesicles.
Synthesizes lipids and packages large molecules in vesicles
Digestive enzymes break down material
Very low pH
Devour old, worn-out cell parts
Receives molecules from vesicles
Vesicle fuse with membrane of Golgi Apparatus
Like a post office, they Golgi sorts and repackages the molecules into vesicles.
Vesicles pinch off Golgi and travel to cell membrane
Produce lysosomes and vesicles.
Located near the nucleus
helps organize chromosomes during cell division
Source of energy
Convert nutrients to energy
Rigid and supportive
Give cells their shape
Absorb energy from the sun and convert it to chemical energy
Site of photosynthesis
Same as animal cell vacuoles, but larger.
May occupy nearly the entire cell volume.
Plants use vacuoles to regulate the amount of water in cells.
Storage for water, food, and minerals
Disposes waste products from the cell
Transports the cell