Tuesday, September 15, 2015

no title

I don't think I every mention this, but my cat Ivy die the month I graduated high school. Three years went by so fast; I'm 22yrs old now. Went to collage, transfer schools, drop out, was a bum on my parent's couch for awhile, join the navy, did two years of my four contract, went back home, got a job (min wage), and brought a car... plan on moving back to Texas before this year is over too.
I have nothing else to say
Still not sure what to do with my life though
Oh! I'm female and my name is Marisa    see me as zeppelin4790 or FoxCatGirl on YouTube and FoxCatGirl on Disqus

The Role of Enzymes

Cells are possibly the smallest chemical factories in the world and yet they are exquisitely efficient and productive. They build chemical compounds (anabolism) from imported raw materials and break down larger molecules (catabolism) to access the necessary elements and energy to help maintain proper function. Cellular chemical processes are referred to as metabolism.

Metabolic reactions require a great amount of energy to take place (activation energy or EA). One way cells manage metabolic reactions is through the presence of enzymes. Enzymes are a type of protein that helps control and manage cell metabolism by making chemical reactions happen more efficiently than if the cell functioned without them. Enzymes lower the activation energy normally required for chemical reactions to take place.

Enzymes compounds are three-dimensional molecules that have special bonding areas called active sites. At the active site of some enzymes, large molecules are broken into smaller molecules (catabolism). Other enzymes bond small molecules together to make larger compounds (anabolism). The molecules and enzymes metabolizes are known as substrates.

The shape of an enzyme's active site is matched to the shape of the molecule it metabolizes. The substrate bonds to the active site and the enzyme molecule firms up the attachment. If possible, take a moment to shake hands with someone. The way hands fit together and firm up in a hand shake is similar to how an enzyme-substrate complex bonds. This is called an "induced fit."

Enzymes function best in specific conditions; environmental factors within the cell can affect how well an enzyme functions. High temperatures can denature (break down) an enzyme, changing its shape. Most enzymes work best in environments where pH range is 6 - 8. Higher or lower values in cells negatively affect enzyme function and thus cell function. An exception is digestive enzymes in the human stomach, which work best in pH 2. Some enzymes work only in the presence of two other type of compounds, cofactors (such as zinc or iron) and coenzymes (such as vitamins). Other compounds inhibit enzyme function by either blocking the active site (competitive inhibitor) or bonding to the enzyme and changing its shape (noncompetitive inhibitor).

Enzymes are often referred to as catalysts because they increase efficiency in chemical reactions without being affected. Because of enzymes, cells can manage millions of chemical reactions per second without breaking a sweat. Because of enzymes, cells can harvest energy and raw materials from the food you eat to build a better you.

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Organic Compounds

1. What is a organic compound?
      contains a carbon-hydrogen bond Examples: glucose, methane
2. What is an inorganic compound?
      Does not contain a carbon-hydrogen bond Examples: carbon dioxide, water
3. What is the most important inorganic compound?
4. What is the monomer (building block) of carbohydrates?
5. What is the function of carbohydrates?
     Provide energy
6. What is the carbon: hydrogen: oxygen ratio of carbohydrates?
7. What are some examples of monosaccharide?
       Glucose, fructose, galactose
8. What are some examples of polysaccharides?
        Surcrose, starch, cellulose
9. What elements make up lipids?
        C, H, O
10. What are the functions of lipids?
        Hormones, make up the cell membrane, energy storage
11. Are lipids soluble or insoluble in water?
      Based on your previous answer, what does that tell you about lipid polarity?
      Lipids are nonpolar
12. How are lipids classified?
        Saturated or unsaturated
13. What are some examples of lipids?
         Fats oils. waxes, steroids
14. What molecules make up lipids?
         Glycerol and fatty acids
15. What is the monomer of proteins?
        Amino Acids
16. What are the functions of proteins?
        Proper body function
17. What is an enzyme?
         Proteins that control the rate of chemical reactions
18. What are some examples of proteins within the body?
       Muscles, hair, cartilage, nails
19. What are the functions of nucleic acids?
        Store genetic info, make proteins
20. What is the monomer for nucleic acids?
21. What is a nucleotide made of?
         Sugar, phosphate, nitrogen base
22. What are two examples of nucleic acids?
         DNA and RNA

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Wednesday, May 29, 2013


I had to delete over 100 comments that were spam! Now you have to be a register user of some kind of ID account to post a comment. Seriously pissed off here!

Sunday, December 18, 2011

Things to do at Walmat

Things to do at Walmart:

1. Get 24 boxes of condoms and randomly put them in people's carts when they aren't looking.
2. Set all the alarm clocks in Electronics to go off at 5-minute intervals.
3. Make a trail of tomato juice on the floor leading to the rest rooms.
4. Walk up to an employee and tell him/her in an official tone, "Code 3' in housewares"... and see what happens.
5. Go the Service Desk and ask to put a bag of M&M's on lay away.
6. Move a 'CAUTION - WET FLOOR' sign to a carpeted area.
7. Set up a tent in the camping department and tell other shoppers you'll invite them in if they'll bring pillows from the bedding department.
8. When a clerk asks if they can help you, begin to cry and ask, "Why can't you people just leave me alone?"
9. Look right into the security camera & use it as a mirror, and pick your nose.
10. While handling guns in the hunting department, ask the clerk if he knows where the anti - depressants are.
11. Dart around the store suspiciously loudly humming the "Mission Impossible" theme.
12. In the auto department, practice your "Madonna look" using different size funnels.
13. Hide in a clothing rack and when people browse through, say "PICK ME!" "PICK ME!"
14. When an announcement comes over the loud speaker, assume the fetal position and scream..
"NO! NO! It's those voices again!!"

15. Go into a fitting room and shut the door and wait a while and then yell, very loudly, "There is no toilet paper in here!
16. Get several bouncy balls and throw them down an aisle shouting "pikachu, I choose you!"

Re-post this if you laughed...
Or are planning to do any of these things...

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