02/13/20 Title: Biology 9/7/06 Objectives: To assess learning about living things. Class Topics Chapter 1 Test All chapter 1 corrections are due before the bell rings, next class period. Begin Chapter 2 Polar/nonpolar molecules Organic Compounds Macromolecules I cannot teach anybody anything, I can only make them think. Socrates Thursday, February 13, 2020 05:15 AM
Page: 1 02/13/20 Class Assignments What Chapter 1 Test All chapter 1 corrections Read 32-37 By When 9/7/06 9/11/06 9/11/06 Due this class period Due next class period Due in the future Page: 2
02/13/20 Grade Sheet Assignments Your score Points possible Your total score Total Percentage points grade possible How are SI Length Measurements Made?
10 35 W.S. 1.1 (Quiz/ Martian) 10 45 Quiz Lab Saf ety & Equipment 40 85 W.S. Are Viruses Alive?/ The Science of Lif e 10 95
Chapter 1 Q uiz 1 35 130 Deer: Predation or Starvation 10 140 Can you spot the scientific method 10 150 Page: 3 02/13/20 2A Grade Sheet Assignments
Your score Points possible Your total score Total Percentage points grade possible W.S. 1.1 (Quiz/ Martian) 10 45 Quiz Lab Saf ety & Equipment
40 85 W.S. Are Viruses Alive?/ The Science of Lif e 10 95 Chapter 1 Q uiz 1 35 130 Deer: Predation or Starvation 10 140
Measurement W.S. 10 150 Can you spot the scientif ic method 10 160 Page: 4 02/13/20 Move desks Page: 5 02/13/20 Posttest Activities Hand in test
Correct chapter 1 homework/labs Read 32-37 Read 32-37 Read 32-37 Read 32-37 Read 32-37 Page: 6 02/13/20 Polar Molecules Have a slight electrical charge on either side of the molecule 105 H2O Unequal sharing of electrons O Surface tension Polar molecules dissolve in water
Nonpolar molecules do not dissolve in water Video Clip The Shape of Water From: http://ghs.gresham.k12.or.us/science /ps/sci/ibbio/chem/notes/chpt2/water.htm Page: 7 02/13/20 Nonpolar molecules No unequal sharing Do not dissolve in water Oils and fats Page: 8 02/13/20 Organic Compounds Contain hydrogen and carbon Usually from or in living organisms all others are inorganic
Do not have both carbon and hydrogen Page: 9 02/13/20 Macromolecules Giant molecules Polymer - many units - large molecules put together from smaller units Monomer - one unit - the smaller parts of the larger polymer Page: 10 02/13/20 Carbohydrates Sugars and starches Contain C, H, O H and O in 2:1
Monosaccharides - monomer glucose - fuel for living cells fructose galactose isomers - same molecular formula, different structural formula (C6H1206) Page: 11 02/13/20 Disaccharides 2 monosaccharides bonded together Condensation (dehydration) reaction sucrose = lactose = maltose = Image from: http://staff.jccc.net/pdecell/biochemistry/carbohyd.html Page: 12
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