Prokaryotic and Eukaryotic Cells Review Video
Introduction to Cells and the Cell Theory Review Powerpoint
Cell Structure and Organelle Review Powerpoint
Introduction to Cells (Video from January 9th, 2017)
What are Cells?
All living things have cells, the basic unit of an organism.
Prokaryotic cells - do not have a nucleus or other membrane-bound organelles.
Eukaryotic cells - have a nucleus and other membrane-bound organelles.
The inside of a cell is mainly water.
This makes it easier for the substances to move around inside a cell, gives cells their shapes, and helps keep the structures inside a cell organized.
Cell Parts and Functions
Rigid layer of nonliving material
Surrounds the cells of plants and some other organisms.
Helps protect and support the cell
Water, oxygen, and other materials can pass through easily.
All cells have membranes
Controls what substances come into and out of the cell
Large oval structure
Directs all the cell’s activities (control center)
Nuclear Envelope (Membrane)
Membrane that protects the nucleus
Allows materials to pass in and out of the nucleus
Thin strands floating in the nucleus
Contain genetic material, instructions for directing the cell’s functions
Small round structure within nucleus
Found within the cell membrane
Clear, thick gel-like fluid that is constantly moving
Organelles are found floating within
Convert energy in food molecules to energy the cell can use to carry out its functions
Endoplasmic Reticulum (ER)
Organelle which is made up of a maze of passageways
Carry proteins and other materials from one part of the cell to another
Small, grain-like bodies
Some attached to the endoplasmic reticulum others float in the cytoplasm
Flattened sacs and tubes
Receive proteins and other newly formed materials from the ER, package them, and distributes them to other parts of the cell
Also release materials outside of the cell
Small, round organelles
Contain chemicals to break down certain materials in the cell (Breaks down large food particles and old cell parts)
Releases broken down substances so they can be used
Large green organelles
Found in plant cells and some other organisms
Capture energy from the sun and use it to produce food for the cell
Chlorophyll inside gives it its green color
Storage areas for cells
Stores food and other materials needed by the cell
Can also store waste products
Plant Cells: have one large vacuole
Some animal cells have smaller vacuoles
Much smaller than plant or animal cells
Has a cell wall and cell membrane
Does NOT contain a nucleus
Genetic material (looks like tangled string) is found floating in the cytoplasm.
Does contain ribosomes, but no other organelles found in plant or animal cell
Human Body: Pushing the Limits (Brainpower) Video
Video shown in class on Thursday, February 16th, 2017
Human Body: Pushing the Limits (Strength) Video
Video shown in class on Monday, February 22nd, 2017