BIOL 1441-030 Wed 11:00 – 12:50 LS 200
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BIOL 1441-030 Wed 11:00 – 12:50 LS 200 BIOL 1441-033 Thu 3:00 – 4:50 LS 207 BIOL 1441-037 Fri 11:00 – 12:50 LS 200 Heath Blackmon LS 459 Office Hours: 10:30-12:00 Tue and Thu [email protected] Macromolecules.

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BIOL 1441-030 Wed 11:00 – 12:50 LS 200

BIOL 1441-033 Thu 3:00 – 4:50 LS 207

BIOL 1441-037 Fri 11:00 – 12:50 LS 200

Heath Blackmon

LS 459

Office Hours:

10:30-12:00 Tue and Thu

[email protected]


Macromolecules

Diverse molecules that serve a variety of purposes in living organisms


CARBOHYDRATESLIPIDS PROTEINSNUCLEIC ACIDS*


Carbohydrates

  • Made of Carbon, Hydrogen, Oxygen

  • Monosaccharide

    • Glucose, fructose, ribose

  • Disaccharide

    • Lactose, Sucrose

  • Polysaccharide

    • “Many Sugars”


Carbohydrates

  • Polysaccharides

    • Starch

      • Glucose storage

    • Glycogen

      • Glucose storage

    • Cellulose

      • structural


Carbohydrates

  • How do you break up large sugars?

    • Hydrolysis

      • With use of enzymes, break down complex starches to glucose, in presence of water.

      • Ex: Seed growth, beer production


Lipids

  • Made of Carbon and Hydrogen

  • Insoluble in water

  • Ex: Oils, fats

    • Found in plants and animals


Proteins

  • Made of tightly bound Amino Acids

    • Peptide bonds

  • Structure

    • Primary

    • Secondary

    • Tertiary

    • Quaternary


Tests to be performed today

Sugar, Starch, Lipid, Protein


Sugar Test

  • Benedict’s Reagent

    • Glucose vs. Sucrose

    • Tests for presence of simple sugars (monosacchride)

    • Record results


Starch Test

  • Iodine Reagent (iodine potassium iodide)

    • Mix with potato starch in test tube

    • Record results


Hydrolysis

  • Breaking up sugars with water and acid

  • Test samples with Benedict's test and Iodine test

  • Record results


Lipid Test

  • Brown Paper test

  • Record Results


Protein Test

  • Biuret reagent – protein indicator

  • Albumin – Egg protein

  • Record Results


Macromolecules in Food

  • Separation of Butter

    • Lipid Layer and Protein Layer of butter

    • Perform tests on the two layers and regular butter

  • Tests with food

    • Perform the tests on Banana, Coconut, Milk, Peanut, and Potato


Lab Manual 52-75

Conversions and Scientific Notation

Difference between a monosachride and disachride

Monosachrides are simple sugars

Disachrides have two simple sugars joined together

Carbohydrates are long chains of sugars

An example of a way that we use macromolecules:

Lipids – cell membranes

Proteins – enzymes (hemoglobin)

Carbohydrates – energy storage

Nucleic Acids – DNA

Lab Manual pp 52-75


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