Cytology
Study of cell structure
Physiology
Functions of the cells
Cell Theory
Living things are made up of cells
Cells are the smallest working unit of living things
All cells are from pre-existing cells through cell division
Cell
Smallest unit capable of performing life functions
What are some examples of cells?
Ameoba proteus
Bacteria
Nerve
Plant stem
Blood
What are the two types of cells?
Prokaryotic - simple cells e.g. bacteria
Eukaryotic - complex cells e.g human and plant
Prokaryotic cells
Free flowing structures
Few internal structures
Once celled organisms
Components of Prokaryotic Cells
Cell wall/membrane
Capsule
Flagella
Nucleoid
Ribosomes
Eukaryotic cells
Contain organelles
Found in most living organisms
Plant and Animal cells
Nucleus
Mitochondria
Animal Cell Components
Plasma cell membrane
Endoplasmic Reticulum (Smooth and Rough)
Nucleus
Golgi
Ribosomes
Lysosomes
Mitochondrion
Cytoplasm
Plant Cell Components
Golgi
Endoplasmic Reticulum (Smooth and Rough)
Nucleus/Nucleoulus
Large central vacuole
Mitochondrion
Cytoplasm
Chloroplast
Cell Membrane
An outer membrane that controls movement in and out of the cell
It is made of a phospholipid bi-layer
Cell wall
Supports the shape of cells and protects cells
Commonly found in plant and bacteria cells
Nucelus
An organelle that contains genetic material e.g. SNA and directs cell activities
Nucelar membrane
Surrounds the nucleus and opens to allow material to enter and leave the nucleus
Also made of two layers
Chromosomes
Genetic material loacted in the nucleus that contain