biology 30 - unit 2 cells cells an introduction. animal cell zcells alive – interactive cell y m
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Animal Cell
Cells Alive – Interactive Cell http://www.cellsalive.com/cells/cell_mod
el.htm
Plant Cell
Cells Alive – Interactive Plant Cell
http://www.cellsalive.com/cells/cell_model.htm
Similarities and Differences
Refer back to the diagram of a plant and an animal cell in your duotang.
Compare and Contrast:
Cell Info
Cells are made of:90% Water10% (includes 50% Protein, 15% CHO,
15% Nucleic Acid, 10% Lipid, 10% other)
What’s in a Gene??
GENOME SIZE: stated as the total number of base pairs the human genome = 3 billion base pairs
Each DNA Molecule contains many genes (the basic physical and functional unit of heredity).
a gene is a sequence of nucleotides bases, who carry the info required for constructing proteins, which carry the structural components of cells, tissue, and enzymes.
The Human Genome has about one hundred thousand genes.
human genes vary in length (average size = thousands of bases) humans can synthesize approx. 100 000 different
kinds of proteins THE GENETIC CODE: is a series of codons that
specify which amino acids are required to make up specific proteins.
the three billion base pairs are organized into 23 units called chromosomes (1 set of chromosomes comes from each parent - Total of 46 chromosomes)
Chromosomal DNA contains an average of 150 million bases
Types of Cells Eukaryotic vs Prokaryotic
EukaryoticEukaryotic are larger and more
complex have a nuclear membrane have membrane bound
organelles (where isolated biochemical reactions occur)
DNA more complex Examples: Plant and
Animal cells
Cellupedia Different Types of Cells - Eukaryotic Cells - Examples
Eukaryotic vs Prokaryotic
ProkaryoticProkaryotic smaller simpler lack nuclear membrane have no membrane bound
organelles oldest known forms of life hereditary info is spread
throughout the nucleus reactions occur on the inner
membranes Example: Bacteria, Blue-green
Algae
University of Arizona - Prokaryotic Tutorial Info
Cellupedia Prokaryoti
c Images
Cell Parts:
Basic cell parts include: Cell Membrane:
phospholipid bilayer;function - to hold all contents
in place and regulate the movement of molecules in and out of the cell;
receptor sites located in the membrane control what enters
Cell Parts
Cytoplasm: nutrients are absorbed,
transported and processed;
wastes will accumulate here;
Nucleus: cell’s control centreall info is encoded in the
DNA
Video of Animal Cells http://www.howe.k12.ok.us/~jimaskew/
bvid4a.mov
Video of Plant Cells http://www.howe.k12.ok.us/~jimaskew/
bvid4b.mov
Review Site: http://www.howe.k12.ok.us/~jimaskew/
unit4.htm
Cell Structure Handout:
You will create a handout that highlights the following parts of the cell.
Rough Endoplasmic Reticulum, Smooth Endoplasmic Reticulum, Ribosomes, Chloroplasts, Microtubules (Microfilaments, Cytoskeleton), Mitochondria, Golgi Apparatus, Lysosome, Centriole, Vacuole, Cell Wall, etc.
Use the websites listed online to help you out Biology in the Classroom: Cells: Cell parts
http://wblrd.sk.ca/~bio2030sp/bio30/unit2/plantandanimalcells/page1.htm
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