Cells

• physical barrier between cytoplasm and fluid outside of the cell • Semi-permeable, controls what enters and exits the cell (phospholipid bilayer) • sensitivity, its the first part of the cell to be affected by change in extracellular fluid • support, cytoskeleton is attached to the cell membrane

Jelly like substance that fills the space between the cell membrane & nucleus

The liquid part of the cytoplasm, it’s 75-95% water

Contains DNA - chromosomes/chromatin who’s genes control the activities of the cell

Synthesis proteins by assembling amino acids, proteins travel through endoplasmic reticulum to the Golgi body

stores and transports molecules using channels surface of the membrane is a site for chemical reactions to occur

Responsible for the modification of proteins and packaging them for secretion from the cell

Contains powerful digestive enzymes

Powerhouse of the cell site for cellular respiration

manufactures and stores RNA

The cell membrane is a phospholipid bilayer, the parts consist of a hydrophilic (water loving) head on the outside and a hydrophobic (water hating) tail in the inside.

sack containing waste waiting to be removed from the cell

The longer it takes a cell to pass across the cell membrane, the less efficient it is A large cell could not support itself because it would not have enough surface area to absorb and remove the products required for efficient functioning

the spreading of particles (liquid or gas) until they are evenly distributed over the available space

diffusion of water through a different permeable membrane high solvent concentration -> low concentration glucose and ions such as sodium cannot enter through diffusion water can fit through lipid tails or through channel proteins