Lesson 2 and 3 - Macromolecules

Lesson Objectives

A. Content Objective: The four types of macromolecules each have their own unique structure and function in living things and are composed of carbon.

B. Language Objective: Create a roundhouse diagram that shows the structure, functions, types of macromolecules. Use the syllabus details to guide you. Instructions for how to do a roundhouse diagram.

C. Syllabus Details:

i. Molecular biology explains living processes in terms of the chemical substances involved

ii. Carbon atoms can form four covalent bonds allowing a diversity of stable compounds to exist

iii. Life is based on carbon compounds including carbohydrates, lipids proteins and nucleic acids

iv. Metabolism is the web of all the enzyme-catalyzed reactions in a cell or organism

v. Anabolism is the synthesis of complex molecules from simpler molecules including the formation of macromolecules from monomers by condensation reactions

vi. Catabolism is the breakdown of complex molecules into simpler molecules including the hydrolysis of macromolecules into monomers

vii. Urea as an example of a compound that is produced by living organisms but can also be artificially synthesized

viii. Monosaccharide monomers are linked together by condensation reactions to form disaccharides and polysaccharide polymers

ix. Drawing molecular diagrams of alpha-D-glucose, beta-D-glucose, D-ribose, a saturated fatty acid and a generalized amino acid

x. Identification of biochemical such as sugars, lipids, or amino acids from molecular drawings

xi. Structure and function of cellulose and starch in plants and glycogen in humans

Activites

Activity 1 - Pre-Lesson Work:

Expectations: Create a set of notes, using the roundhouse diagram, of the syllabus statements above. The Roundhouse diagram needs to be handmade on a piece of paper or iPad.

Links:

Roundhouse Instructions - Read this first

Roundhouse Blank Sheet - import into your iPads or print a copy

Roundhouse Example - It's not a great example.

Video:

Amoeba Sisters - Biomolecules (start at 6:30) - iii, ii, x

Why Carbon is a Tramp - 2min - 5 min - i, ii, iii

Generalized Structures of Macromolecules - ix, x

Identifying Macromolecules - x

Structure and function of cellulose and starch - x

Readings:

Bioninja - Molecular Biology - i