Notes

•cell membrane's function is to separate the cell's content from its environment.
•it also controls materials going into and out of the cell

•the fluid in a cell is the cytoplasm.

•organelles are structures that perform specific functions within the cell

•all cells contain DNA. DNA carries information needed to create new cells and organisms. it controls the activities of a cell

•the nucleus is like the brain of the cell. The nucleus gives all the genetic information for an organism to survive

•all cells have cell membranes, organelles, cytoplasm, and DNA.
there are two basic types of cells- cells without a nucleus and cells with a nucleus..

cells with no nucleus are Prokaryotic cells. further classified into two groups-- bacteria, and archaea. these are single-celled organisms that do not have or membrane-bound organelle.

cells with a nucleus are Eukaryotic cells. these are the largest type of cells. most Eukaryotic cells are Multicellular.

•Ribosomes are tiny round organelles that make and produce proteins

•plant cells and animal cells are two types of eukoryatic cells

•plant cells have an outermost structure called a cell wall. a cell wall is a rigid structure that gives support to a cell

*cytoskeletons acts both as a muscell and skeleton. it keeps the cell membrane from calapsing and it helps cells move.

*The ER transports proteins and other materials

*mitchondria is the main power source of a cell. produces energy, and where sugar is broken down.

*chloroplasts are organelles in plants and algae cells in which photosynthesis takes place. chloroplasts are green because of
chlorophyll, a green pigment.

*The organelle that packages and distributes proteins is called the Golgi complex

*Lysosomes destroy worn-out or damaged organelles, get rid of waste materials, and protect the cell from foreign invaders

*Vacuoles store food and water and help support the cell.