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5
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Much to my chagrin, my wife has made me cook with Olive Oil instead of butter. Why is this chemical a liquid at room temperature?
Olive oil is mostly unsaturated fatty acids. The double bonds create bent chains of carbons and hydrogens that cannot be packed into a solid.
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thief
Give points!
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25
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fairy
Take points!
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25
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gift
Win 15 points!
Okay!
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thief
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25
5
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In proteins, what is the difference between primary and secondary structure?
If you just chemically bond single amino acids together, you get primary structure. When hydrogen bonds are added, you get secondary structure.
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A long chain of amino acids chemically bonded together is called a ____________.
polypeptide.
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What is the difference between essential amino acids and nonessential amino acids?
Your body can synthesize (or construct) nonessential amino acids. Essential amino acids must be obtained from your food.
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What are the elements that carbohydrates contain?
Carbon, Hydrogen, Oxygen (Typically in a 1:2:1 ratio)
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In the picture and two different types of chemicals. Can you name and describe them?
The top chemical is a saturated fatty acid. The bottom chemical is an unsaturated fatty acid.
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boom
Lose 50 points!
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shark
Other team loses 15 points!
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rocket
Go to first place!
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lifesaver
Give 25 points!
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lifesaver
Give 25 points!
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magnet
Take 20 points!
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shark
Other team loses 25 points!
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lifesaver
Give 25 points!
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5
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Which is better for your health? The steak or the vegetables?
Both are healthy to eat. However, it is the AMOUNT that you eat, which might make steak a bit less healthy due to the fat composition and content.
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What is a polysaccharide?
A giant molecule, such as starch, or cellulose, made of hundreds, or thousands, or hundreds of thousands of monosaccharides such as glucose.
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This highly branched polysaccharide allows animals to store excess glucose in their liver. What is it?
Glycogen
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What is this molecule? Can you describe it with three different terms?
This is sucrose. It is a carbohydrate. It is a disaccharide. It is the product of a reaction that chemically bonds glucose and fructose together.
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What is an isomer?
Isomers are compounds with the same chemical formula but a different arrangement of atoms in the molecule and different properties.
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Can you describe four functions of proteins?
1) Enzymes that speed up chemical reactions 2) Antibodies for your immune system 3) Structure (muscles) 4) Transportation (hemoglobin)
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5
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This delicious food is solid at room temperature. Can you explain why.
Butter is mostly saturated fatty acids. These molecules form straight chains of carbons and hydrogens that can be packed together into a solid.
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