Robert Hooke-
1 st person to view a cell under a microscope, given credit for naming cells.

Cell Theory- made up of three parts
1. Cells are basic building block of all living things
2. All life activities take place in cells
3. New cells are produced by existing cells

Organelle- tiny structures that carry out cell activities

Cell Membrane- surrounds the cell and controls what goes in and out of the cell
Semi-permeable acts much like a filter or screen - some things pass, others cannot

Nuclear Membrane- Surrounds the nucleus and controls materials moving in and out of the nucleus

Nucleus- control center of the cell, directs all the cell’s activities
Contains DNA
Usually the easiest organelle to see under a microscope
Usually one per cell

Cytoplasm-
Jelly-like substance that fills the cell and contains the other parts of the cell

Chromosome-
Holds the instructions for all traits of a cell

DNA
DNA- chemical found in the chromosomes, that directs life activities,
“Blueprint of
Life”

Mitochondria-
Stores and releases the energy
“
Powerhouse of the cell
”

Chloroplast-
Contains chlorophyll that absorbs energy from the sun to help the plant make food

Cell Wall- Stiff outer layer that protects and gives a plant cell its’ shape
Found in plant cells

Vacuoles-
Storage container for water, food, wastes
Larger vacuoles usually in plant cells
Many smaller vacuoles in animal cells

Which organelle is the control center of the cell?
Which organelle holds the cell together?
Which organelles are not found in animal cells?
Which organelle helps plant cells make food?

Enjoy these photos and diagrams of the cell organelles!

…the Cell Wall

Mitochondria!

The nucleus with other structures…