Cell Theory and Prokaryotic Cells

Outline the cell theory

Unicellular organisms carry out all the functions of life

Movement

Reproduction

Sensitivity

Growth

Respiration

Excretion

Nutrition

Importance of the surface area to volume ratio as a factor limiting cell size

Multicellular organisms show emergent properties

Cells in multicellular organisms differentiate to carry out specialised functions by expressing some of their genes and not others

Stem cells retain the capacity to divide and have the ability to differentiate along different pathways

Self renewal of stem cells

Potency of stem cells

Therapeutic process in the use of stem cells

Therapeutic use of stem cells

Cell Wall

Cell Membrane

Cytoplasm

Nucleoid

Prokaryotic Ribosome

Flagella

Pili

Attachment Pili

Sex Pili

How do prokaryotic cells divide?

Binary Fission