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Biochemistry Test
ch. 5
40
Biology
9th Grade
10/20/2008

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Term
polymers are made up of _______
Definition
monomers
Term
all organic compunds are made of _____
Definition
carbon
Term
what organic compound is the main fuel supply for cellular work?
Definition
carbohydrates
Term
name 3 functions of proteins
Definition
1. carry out chemical reactions
2.cell defence
3.provide long term neurient storage and muscle
Term
Amino acids form _____. _____ form proteins
Definition
polypeptides
Term
name 3 types of carbohydrates and list examples.
Definition
1. monosaccharides- glucose
2. disaccharides- sucrose
3. polysaccharides- glycogen
Term
Is cholesterol useful? Why or why not?
Definition
yes. it surrounds cells and keeps them flexible.
Term
a _______ forms 4 fused rings; cholesterol is an example of one.
Definition
steroid
Term
carbon can form how many bonds with other atoms?
Definition
4
Term
a substrate that accelerates the rate of a chemical reaction is a(n) _______
Definition
catalysts
Term
enzymes are specific types of catalysts that affect the reactions in living cells by lowering the ____________
Definition
activation energy
Term
what enzyme was present in the liver during the liver lab?
Definition
catalase
Term
what is the term used to describe the energy needed to get a reaction started?
Definition
activation energy
Term
a carbohydrate made up of 2 sugar units is a(n) _____
Definition
disaccharide
Term
Amino acids are different by their ____ ______
Definition
side groups
Term
the reaction that adds a monomer to a chain by removing water is called a(n) _________________
Definition
dehydration reaction
Term
the reaction that breaks down the polymer chain by removing water is called a(n) _________
Definition
hydrolysis reaction
Term
what is denaturation?
Definition
unfavorable change in tempature, pH, or anything else that changes its shape
Term
denaturation example from book
Definition
frying an egg
Term
when in the liver lab did you notice denaturation?
Definition
when the liver was boiled
Term
name 4 characteristics of enzymes
Definition
1. organic
2. specific tempature and pH when working
3. proteins
4. catalysts
Term
what are the 3 common atoms in your body?
Definition
Hydrogen, Oxygen, and carbon
Term
plants store energy in the form of what polysaccharide?
Definition
starch
Term
animals store energy in the form of what polysaccharide?
Definition
glycogen
Term
what is the building block of proteins?
Definition
amino acids
Term
what is the building block for carbohydrates?
Definition
sugar monosaccharide, or simple sugar
Term
carbohydrates are composed of a _:_:_ ratio of carbon to hydrogen to oxygen
Definition
1,2,1
Term
which atom is found in proteins but not in carbohydrates?
Definition
nitrogen
Term
cellulose is a type of ______ and used for _______________
Definition
polysaccharide, cell prtection and support
Term
what is a lipid?
Definition
water avioding compound
Term
give examples of unsaturated fats.
Definition
1. olive oil
2. corn oil
3. veggie oil
Term
give examples of saturated fats.
Definition
1. lard
2. butter
Term
a lipid molecule does not mix well with water. a term used to describe lipids is ____
Definition
hydrophobic
Term
a chemical formula tells us what 3 things?
Definition
1. atoms
2. proportions of atoms
3. # of atoms
Term
the chemical formula C6H12O6 represents _____
Definition
glucose
Term
proteins that speed up or catalyze chemical reations are called _____
Definition
enzymes
Term
the substrate that fits into a particular region of an enzyme called the _____
Definition
active site
Term
an enzyme acts upon its _____
Definition
substrate
Term
in the enzyme lab, the enzyme was present in the ____
Definition
liver
Term
in the liver enzyme lab, which of the following should have given the greatest reation?
Definition
room tempature
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