Bio1_07_Cells - 1 2 3 4 5 6 7 8 9 10 Self-Quiz 1. What are...

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1 Self-Quiz 1. What are the 4 categories of biomolecules? What are their subunits? 3. What is the energy-storage polysaccharide in plants? Vertebrates? 4. What are the 4 categories of lipids? 5. What are the 4 levels of structure in proteins? How are proteins denatured? Self-Quiz 1. What functional group is –COOH? 3. Describe dehydration reactions. 4. What do all steroids have in common? 5. What kind of bond joins amino acids in a protein? 6. What is the nucleotide most closely associated with energy transfer? Overview: Cells – Cell theory – Prokaryotic cells – Eukaryotic cells – Cellular organization •Organelles • Ch. 5: Membranes – Osmosis (pp. 92 – 93) Cell Theory 1. All organisms are composed of cells 3. New cells only come from preexisting cells because cells are self-reproducing Cell Size • Surface area • Volume • Surface-to-volume ratio limits cell size Assignment 1 • If a cell is too big it can’t get enough nutrients in & wastes out (surface area) to accommodate the cell’s needs (volume). How small is small? Microscopes • Compound light microscope • Transmission electron microscope • Scanning electron microscope Assignment 2 • Think, Pair, Share • Topic: What kind of microscope would be best for studying the following: – The movement of a living amoeba – The internal structure of a white blood cell – The surface structure of a human hair – An influenza virus
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Bio1_07_Cells - 1 2 3 4 5 6 7 8 9 10 Self-Quiz 1. What are...

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