***Here is the video link from today...
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Cell Cycle Label no answers.html Cell Cycle Label no answers.html
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mitosisworksheet.docx mitosisworksheet.docx
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Wednesday-9/12...CW: Ch 2.2...Cell Division = Mitosis.
***Textbook sec. 2.2... p. 60-63...
*** Mnemonic- P-M-A-T  ...I = Interphase is NOT a phase of Mitosis but prepares for cell division
***Below is video link from today...
***Cell cycle label ws and Mitosis Ws is on top...

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4 Types: Epithelial,Connective, Muscle, and Nervous...
Students will learn Epithelial structures first and draw the cells on paper to reinforce the terms Simple and Stratified...
***Simple Epithelium = 1 layer of cells...
***Stratified Epithelium = more than 1 layer of cells...
Body  Tissues

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This illustration shows the three principal classifications associated with epithelial cells. Squamous epithelium has cells that are wider than they are tall. Cuboidal epithelium has cells whose height and width are approximately the same. Columnar epithelium has cells taller than they are wide. There are pictures of each of these types of epithelium: simple squamous, simple cuboidal, simple columnar, stratified squamous, stratified cuboidal, pseudostratifed columnar, and transitional.

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Balancing Equations Worksheet-sub.docx Balancing Equations Worksheet-sub.docx
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blncact (1).pdf blncact (1).pdf
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***Video link on today's RNA and DNA below...

Intro to balancing chemical equations...
Today's ws is above for absent students...Print it!

An unbalanced chemical equation lists the reactants and products in a chemical reaction but doesn't state the amounts required to satisfy conservation of mass.

For example, this equation for the reaction between iron oxide and carbon to form iron and carbon dioxide is unbalanced with respect to mass:

Fe2O3 + C → Fe + CO2

The balanced equation is:

2 Fe2O3 + 3 C → 4 Fe + 3 CO2

HW: Read sec. 2.1 text and check web page twice/day..

Complete Balancing equation ws-Do not quit before you try!

Video above will help you with ws...

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***Below  is pH video from today...
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Balancing Equations Practice...
We review yesterday's ws and try some more...Practice makes purr-fect!

Balancing Chemical Equations: Here is a great step by step link....
Left of the arrow are called Reactants...Right of the arrow are called Products...Know these!!

Click the following link for an easy, beginner's Balancing worksheet:
***Here are great video links to help you further...


How to Balance chemical equations...it's a math game of numbers and symbols...
***Vocab to know: 1. Coefficient
                                   2. subscript(atoms)
                                   3. Reactants
                                   4. Products
All it involves is what I call 'cross multiplication of coefficients x subscripts...You cannot get it unless you practice-practice-practice...
Example:   H2 +  O2 →  H2O...
The box is a beginning way to identify where coefficients go...YOU MAY NEVER ADD OR CHANGE A SUBSCRIPT...ONLY A COEFFICIENT...

    ____ Na +____ I2 ® ____ NaI

***It is an invisible '1' that is always a coefficient but we NEVER write a 1-it is understood...

Below is a VERY BASIC video link to help you get started!



Below is the video I showed in class...


Here is a GREAT aid to help you with the possible quiz coming...Play the game below...



A Preview for tomorrow...

Carbs = C-H-O                                 Proteins =C=H=O=N
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Lipids = C-H-O                                   


 Macromolecules(text p. 38-50)

2 short videos...
4 classes: Carbohydrates: C-H-O...ex. glucose, sucrose
                   Proteins: C-H-O-N...all made up of amino acids...ex. phenylalanine, glycine, arganine...they end in suffix-ine...
                   Lipids(Fats)...C-H-O...ex. suffix ends in ol...made up of fatty acids-ex. glycerol, cholesterol...
                    Nucleic acids(DNA-RNA)...C-H-O-N-P...consists of sugar, phosphate and nitrogen bases(Adenine-Thymine, Guanine-Cytosine).
HW: Review text  sec. 2.1and check webpage...

Why chemistry is important to the study of anatomy and physiology may not be obvious if you're just looking at your body as a collection of organs. But all the cells in your organs are composed of chemicals, and chemical reactions are involved in all of your body's movements and cycles. Chemistry explains how your cells produce energy and proteins, why you breathe and have blood and what sorts of foods and vitamins are important for nutrition. With a basic understanding of chemistry, you can understand why your organs function the way they do and how the systems of your body work together."
***4 Major elements in our body by percentage:
Atoms composed of a brain(nucleus), protons-neutrons...around the atom are electrons...
***Quick review: protons have + charge
                           electrons have - charge
                           neutrons have no charge
 Atomic # = number of protons
Atomic Mass(Wt) = protons + neutrons...
Below is Atomic structure video from today...WS is below but will not be graded...WS is for review/reinforcement unless specified otherwise...

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