Main parts of a Cell

Organelles I

Prokaryotic vs. Eukaryotic

What do all Eukaryotic cells have in common?

• Nucleus

• Cytoplasm

• Cell membrane

Cytoplasm

• Inner content of the cell mainly made of water and where different structures, called organelles, are found.

Organelles: Nucleus

• Nuclear envelope: made of a double membrane which has pores that allow the exchange of substances

• DNA: genetic material which has the information that controls how the cell functions (uncoiled Chromatin) (Condensed or coiled Chromosomes

• Nucleolus: where ribosomes are synthesized

Activity

How many

cells do you

see in the

image?

Cell membrane

• It is a thin layer that covers the cell and serves as a boundary between the cell and the surrounding.

• Made up of a double layer of phospholipids.

• Contains protein molecules on the interior, the exterior or across the lipid bilayer.

• Some are glycoproteins with carbohydrate chains

Phospholipid

http://ujaididida.weebly.com/3/post/2010/11/phospholipid-molecule.html

Hydrophilic, polar head (contains phosphate)

Hydrophobic, apolar, tail made up of 2 chains of fatty acids.

MACROMOLECULE

Fluid Mosaic Model