Chapter 3 Multiple Choice Test

Nutrient Testing Lab

Please go to Google Classroom to retrieve documents.

Test on Tuesday, September 29th.

 The study guide is posted on Google classroom and on the home work page.

All the pages of chapter 3 are due on Monday, September 28th.   See you tomorrow for the Nutrient Testing Lab.

Worksheets Posted and additional information on the Macromolecules.

The additional pages for the chapter 3 packet have been posted in Google Classroom. Also check the vocabulary link for new words.

Details of the Macromolecules

Starch, glycogen and cellulose are also examples of polysaccharides.  Excess glucose is stored in plants as starch, and in animal tissue as glycogen.  The cell wall of plants called cellulose are made of glucose.

Proteins are made of the monomers amino acids.  Proteins account for more than 50 % of the dry weight of most cells and are instrumental in almost everything.  All proteins are made of 20 kinds of amino acids

Nucleic Acids: The monomers of nucleic acids are nucleotides.  DNA and RNA are examples of nucleic acids.  They are the blueprint of life.  

The DNA Molecule

Lipids:  The monomers of lipids are fatty acids and glycerol. They are not considered true polymers because they are made of two different monomers.  Fats, oils, and steroids belong to this group of macromolecules.

Example of Steroid

The Chapter 2 Test

Uploads folder is available in Google Classroom.  Please read the information and upload only what was requested.  Upload by Monday, September 21, 2020.

The results for the test will be discussed on Monday.  Three students got 14 out of the 15 questions; one from period 2 and two from period 3.  

Read through the notes taken and follow along by reading the corresponding sections from the textbook. In addition, memorize the vocabulary words listed under the vocab section.  

Hydrocarbons

We will spend the first half of the class discussing the lab write up format.  You will learn how to write a lab report.  Click on the tab to see the lab tab to view.  Additional details specific to the class not listed on the form will be explained.

The hydrocarbons will be introduced in preparation for the chapter 3.

 Unlike compounds formed

from other elements, carbon compounds

are far more numerous and varied.  There are several million carbon compounds known and several hundred thousands are synthesized each year.

Branched Hydrocarbon                                       Ring Structure

The most common elements found with carbon are hydrogen, oxygen, nitrogen, sulfur, phosphorus, and the halogens. 

Study Guide Posted in Google Classroom.

 The test for chapter 2 is on Friday, September 18, 2020.

The Properties of Water.

We will discuss the properties of water and discuss the pH scale.

Sign into Google classroom to work on  the worksheets to help you remember the material. 

Water: The Uncommon Solvent

Irregularity of the density of water. The highest density of water occurs when the molecules are packed tightly together.  The crystal arrangement of ice has a lot of space incorporated in it. There are fewer molecules of water per volume in ice, than there are in water.