bio notes

• procariotic are simple and znd smaller with DNA floating in one loop suppounded by cytoplasm and ribosomes and plasmid. with a wall and a plasma membrane with flagella comming out the end. and phili comming out the sides.
• eukariotic cells are much more complex with many organells and the dna is in the nucleus and the organells have condtructive walls. the dna is in the form of chromosomes or chromatid. they are much larger and have more ribosomes

• -everything is made up of one or more cells
• -cells come from other cells
• -cells are the smallest unit of life

• matabolize
• growth
• reproduction
• responce
• nutrience

• in 1665 peter hooke named the cell when he was looking at cork under a microscope he made himslef.
• Antonie can leeuwenhoek say the first living cell (sperm) a few years later and reffered to them as "animalcules"

• - Volume grows a lot faster than its surface area
• - When they get too big then they split into 2 or become flat.
• -surface area is in quardination to the amount going in and out so how big it need to be.
• -nerve cells don’t reproduce very fast. Some don’t at all.
• -Skin cells reproduce rapidly. (Epithelial)

embro, the meristematic tissue on spants, and the baby cord.

stem cells are cells that have the potencial to be any kind of cell. this is used to recreate parts of people. they use stem cells to repare scarred tissues and such with burn victims and very commonly used for bone marrow

• plants
• -stores carbs such as starch
• -exterior includes a cell wall with a plasma membrane
• -do not contain centrioles within a centrosome area
• -chloroplasts are present in the cytoplasm

• animals
• - stores carbs in the glycogen
• -exterior only includes a plasma membrane
• -contain centrosome area
• -no chloroplasts

• head-hydrophobic phosphorylated alcahol heads
• tail-hydrophobic region of fatty acids

integral protein

glyocoprotein, integral protein, cholesterol

phospholipid layer

• head polar
• tail unpolar

pass light threw living or dead things to form an image

passing elecrtons threw to make an image

bionary fission

• -protein open on the inside.
• -sodium goes in.
• -atm activatied
• -breaks apart
• -switches open sides
• -pottasium goes in and sodium goes out
• -the atm leaves
• -the sides open switches