Chapter 3 Multiple Choice Test.

You will take the test in class. Relax an pay attention to the details.

If there enough time remaining after the test, we will discuss the Nutrient Testing Lab assignment from yesterday.

Nutrient Testing Lab

You will work in groups of four to test food items for different nutrients. 
You will test for the following nutrients in the food items provided:
1) Fats and oil
2) Starch
3) Glucose
4) Sucrose
5) Proteins.

The following indicators will be used to confirm the presence of each nutients:
a) brown paper
b) Iodine
c) Benedict's Solution
d) Biuret's Solution

Each group of four students will have a different combination of foods to work with.

Lab Reports will be collected from each student at the end of the class.

Have fun.

Chapter 3 Packet is Due

After grading the packet, you will be given instructions about the nutrient testing lab on Thursday, September 27, 2018.

The Role of Proteins in a Cell

You do not need to do the essay questions in the packet

You will start the assignment in class to research the role of Proteins in a Cell.
You will create a chart to list the 7 Functions of proteins.
In the assignment you will include: Functions, Description, Examples.

Chapter 3 test is on Friday, September 28, 2018.  Clink on the PLHS link to view study Guide

Nucleic Acid.

You will be introduced to nucleic acids. The details of nucleic acids will be covered later in the school year under the units on genetics.

The monomers of nucleic acids are nucleotides.  Each nucleotide is made of a phosphate group, linked to a 5-carbon sugar. Each nucleic acid chain has a backbone in which phosphate groups alternate with sugar molecules to form a covalently linked polymer. Attached to the sugar ring of each nucleotide by loss of a molecule is one of four nitrogenous bases: A, T, C and G.

If the proteins are the building materials of life, then nucleic acids are the blueprint.  The DNA has the instructions and directs the RNA in functioning of cells and the synthesis of proteins
 

Proteins

You will take notes from the PowerPoint on the role of Proteins



It is only in the nature of the variant (R) that amino acids differ from one another.  There are only about twenty amino acids that occur in the proteins of living organisms, although there are more than 2000 natural and artificially made amino acids.

There are ten essential amino acids that cannot be synthesized by the body and must be included in the diet.

 Click the link immediately below to  view video.
Video: Protein Structure and Folding

PowerPoint Presentation - Lipids

You will take notes on lipids.  We will discuss the differences between unsaturated and saturated fats.  We will also discuss trans fats; how it is produced and the health consequences of having a diet high in saturated fats. 

We will also discuss steroids and discuss steroids and the modern athlete.