Cell theory, cell types, cell membrane & transport

who contributed to cell theory?

Hooke, leeuwenhoek, schleiden, schwann, virchrow

what are the three tenets of cell theory?

all living things are made of cells; cells are the basic unit of life, they come from preexisting cells

difference between prokaryotes and eukaryotes?

prokaryotes lack nucleus, eukaryotes have one

what is the fluid mosaic model?

membrane structure with phospholipids, proteins, carbs and cholesterol

what does cholesterol do in membranes?

adds strength and controls permeability ( state and quality of a material OR the membrane that causes it to allow lipids and gases to enter and exit)

what is selective permeability

membrane allows some substances through, not others

difference between passive and active transport?

passive= no energy active= requires ATP