Biological Molecules

Before this unit, you should read Chapter 1 and define the following and give an example of each in your interactive notebook:

• atom
• ion
• ionic bond
• covalent bond
• hydrogen bond

This animation on the three types of bonding may help.

1. Water -video

2. pH – video

3. Functional Groups – video

4. Carbohydrates – video

How Sugar Affects the Brain

Alpha and Beta Glucose Formation in Water animation

RIGHT HAND SIDE EXTENSION IDEAS FOR CARBOHYDRATES:

• Research sweeteners:  sugar alcohols like Xyla, aspartame, Splenda, Stevia, and others.  Which do you think are the safest?  Which do you think you should stay away from?
• Why is it important to try to keep your blood sugar stable throughout the day? Why is it worse to eat pure sugar or very sugary foods alone rather than to eat them as part of a meal.
• What is the relationship between insulin, glucagon, and blood sugar?  What type of biological molecule (carbohydrate, lipid, protein, nucleic acid) are insulin and glucagon? and where are they produced in the body?

5. Lipids – video

Reality Check – Carbohydrates and Lipids

Realitiy Check – Carbohydrates and Lipids – KEY

Lipid formation by condensation synthesis – animation

Butter vs Margerine

RIGHT HAND SIDE EXTENSION IDEAS FOR LIPIDS:

• Find out more about short, medium, and long chain fatty acids and the latest research about their impacts on health.
• Find out how taking steroids artifically impacts health.
• Find out which organelles are made from phospholipid bilayers and which are not.

6. Proteins – video

Denaturation of Egg Protein – Tutorial

7. Nucleic Acids – video

Journey into DNA – animation

Reality check – Proteins and Nucleic Acids http://sd41blogs.ca/pereirav/files/2013/10/Reality-Check-Proteins-and-Nucleic-Acids-KEY.pdf

Molecules Gone Wild

TEST OUTLINE:

Part 1:  Be able to recognize the following molecules:  Heme group of hemoglobin, ATP, purine nucleotide, pyrimidine nucleotide, DNA, RNA, amino acid, dipeptide, ribose, deoxyribose, triglyceride (fat), saturated fatty acid, unsaturated fatty acid, phospholipid, steroid.

Part 2:  http://sd41blogs.ca/pereirav/files/2013/10/TEST-OUTLINE-v.13f-2.pdf