Title: Biology 9/12/06 Objectives: Class Topics 1/18/2019 Title: Biology 9/12/06 Objectives: To continue learning about the scientific method assess learning about living things. Class Topics All chapter 1 corrections are due before the bell rings, Review Chapter 1 Test Chapter 2 Macromolecules Carbohydrates Lipids Proteins Nucleic Acids “We cannot solve a problem by saying, ‘It’s not my problem.’ We cannot solve a problem by hoping that someone else will solve it for us. I can solve a problem only when I say, ‘This is my problem and it’s up to me to solve it.’ M. Scott Peck Friday, January 18, 2019 8:04 AM

Class Assignments All chapter 1 corrections 9/12/06 Read 32-37 9/12/06 1/18/2019 Class Assignments What By When All chapter 1 corrections 9/12/06 Read 32-37 9/12/06 W.S. “Identifying Chemical Compounds” 9/14/06 W.S. “Biochemistry” 9/14/06 Due this class period Due next class period Due in the future

1/18/2019 Grade Sheet

1/18/2019 2A Grade Sheet

Carbohydrates Sugars and starches Contain C, H, O 1/18/2019 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)

Image from: http://staff.jccc.net/pdecell/biochemistry/carbohyd.html 1/18/2019 Disaccharides 2 monosaccharides bonded together Condensation (dehydration) reaction sucrose = lactose = maltose = Image from: http://staff.jccc.net/pdecell/biochemistry/carbohyd.html

Polysaccharides Many monomers bonded together Plants Animals 1/18/2019 Polysaccharides Many monomers bonded together Plants starch – humans can digest ex. Potatoes, pasta, cereals Cellulose – humans cannot digest Ex. Dietary fiber Animals glycogen (animal starch) stored in liver and muscles

From: http://staff.jccc.net/pdecell/biochemistry/carbohyd.html 1/18/2019 Polysaccharides From: http://staff.jccc.net/pdecell/biochemistry/carbohyd.html

Lipids C,H,O Fats, oils, & waxes 1/18/2019 Lipids C,H,O H, 0 not in 2:1 ratio Fats, oils, & waxes Used to store energy and for protection monomer - glycerol and fatty acid chains

Lipids oils fats waxes unsaturated fat Liquid at room temperature 1/18/2019 Lipids oils unsaturated fat Liquid at room temperature fats Saturated fat solid at room temperature waxes prevents water loss in plants earwax

Proteins Monomer - amino acid Elements – C, H, O, N, S Functions 1/18/2019 Proteins Monomer - amino acid Elements – C, H, O, N, S Functions Structure – hair, ligaments, muscles, hemoglobin Hormones – insulin, growth hormone Enzymes – amylase Long chains of amino acids

Proteins cont. Type and sequence of amino acids very important. 1/18/2019 Proteins cont. Type and sequence of amino acids very important. determines the shape of protein Shape determines function

From: http://www.rothamsted.bbsrc.ac.uk/notebook/courses/guide/aa.htm 1/18/2019 Amino Acids From: http://www.rothamsted.bbsrc.ac.uk/notebook/courses/guide/aa.htm