1. Title Page (10 points) – on a page by itself
Title :Chemistry of life/microscope use/cell structure & function
Your Name
Lab partner names
Instructors name
Period
Date

2. Purpose / hypothesis (10 points)
CHEMISTRY
To be able to review the organization of atoms and molecules, types of chemical interactions, and basic categories of organic compounds and to differentiate between types of organic compounds.
CELL STRUCTURE
To review the structure and functions of major cellular components and to observe examples of human cells.
MICROSCOPE USE
To be able to identify the parts of a microscope, focus a microscope and give record magnification

3. HYPOTHESIZE pH station – If I test the pH of
Vinegar, apple cider, baking soda, water, lemon juice, soda
Then I infer that ________ will be most acidic and _______ will be the most alkaline (basic).
Mono-saccharides (simple sugars) – If I test the presence of mono-saccharides in
Water, glucose, soda, egg albumin, starch
Then I infer that _________ will show the presence of mono-saccharides
Which solution will show the presence of polysaccharides (starch)
Water, glucose, soda, egg albumin, starch
SAME AS ABOVE

4. Materials (10 Points) Test tubes Beakers Tongs Hot plate Pipettes
SOLUTIONS: glucose, starch, water, lemon, soda, egg albumin, vinegar, apple cider, baking soda water
SOLUTION INDICATORS: benedict, iodine, pH indicator papers
Microscopes
Slides
Coverslips
toothpicks
Methylane blue

5. Methods/procedure (10 points)
In a normal experiment you would describe in detail every step of the experiment so anyone looking at your notes would be able to repeat it.
For this lab you will
Briefly explain what was done at each station!
This should end up being about 1-2 good paragraphs.
Example – At the chemistry lab stations we tested for the presence of proteins, mono-saccharides and starches using the following substances and an indicator solution. (egg white, water, soda, starch, and glucose). We also tested the pH of water, lemon, vinegar, apple cider, baking soda and soda.
There was a station were we labeled the microscope and viewed tissue slides at 3 magnifications. We also stained cheek cells, sketched results and compared other tissue slides.

6. Data (10 points) put this data only in your lab book and put a + in the column where the organic molecule was present. If you have any different results it would be due to cross-contamination with the pipettes or graduated cylinders.
SUBSTANCE
protein
monosaccharides
starch +
Glucose solution
water
Egg albumin
soda

7. Discussion/analysis (20 points)
Question? Write the question or restate the question in your answer.
1. What substance did you find to be the lowest pH. What does this mean in terms of H+?
2. What is the hardest part about viewing a slide through the microscope?
3. Why did the egg albumin become solid?
4. Why would mono-saccharides not be indicated in the starch solution?

8. Conclusion (10 points)
Accept or reject hypothesis. Make sure to restate it!

9. Graphs (10 Points) Ph scale graph
Your graphing your results on a pH scale.
Refer to your text to create the graph

10. Check your answers for worksheet questions
Chemistry of life B E H J F I C D K G A L
Molecules and bonding
1, 1
17, 7
Drawing No
Covalent see next slide

11. Answer to number 5 & 6 on molecules and bonding
Covalent bond
The sharing of the electrons in the H-Cl bond is not even. This is due to the high electronegativity of Chlorine, which results in the Chlorine nucleus pulling the electrons in that pair closer to it than does the Hydrogen atom. In fact, the electrons from that bond spend virtually no time around the Hydrogen nucleus.
This means that the Hydrogen nucleus, which is just a single proton, is very loosely held to the Chlorine atom. As soon as the HCl molecule encounters any other atom or ion that has even a slight tendency to pull positively charged particles (such as protons) towards it, the proton will detach and so the HCl molecule will break up into a free proton (+ charge) and a negatively charged Chloride ion:

12. Part B pH scale
3. No 4. Chlorine is added to tap water to kill bacteria and it is a basic solution. So tap water may be more like 7 or pH scale should go in the graph portion of your lab report

13. Critical thinking
A person on a high protein, low carb diet should consume egg white and drink lots of water.

14. Cell structure & funciton
Part A A G K L I F C B D E H J
Part B
Lipids, proteins & carbs.
Double lipid bi-layer
Water soluble
Protein
??? Proteins
Part C
Easier to see nucleus and border
Same size and shape
Part D
Membrane & nucleus
Shape, stucture