34 terms by dzandsb

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Lipids are ______ because they have no negative and positive poles.


Lipids are soluble in _______.


A phospholipid molecule contains all of the following except:
a. phosphate group
b. glycerol
c. two fatty acids
d. three fatty acids

three fatty acids

Which organic molecule below is most closely related to nucleic acids?
a. amino acids
b. nucleotides
c. CH2 chains
d. sugars


A model of enzyme action is the _______.

induced fit model

Long chains of amino acids are found in _______.


Which of the following is a carbohydrate?
a. wax
b. DNA
c. insulin
D. sucrose


Which organic molecule below is most closely related to lipids?
a. CH2 chains
b. sugars
c. amino acids
d. nucleotides

CH2 chains

Which of the following is not true of alcohols? (put the letter)
a. They are the only kind of functional group in organic molecule that contains oxygen
b. They contain a hydroxyl group (-OH)
c. They can affect processes in living things, either positively or negatively
d. They are polar molecules


Which organic molecule below is classified as a carbohydrate?
a. nucleotide
b. amino acids
c. CH2 chain
d. sugar


All of the following are examples of lipids except
a. earwax
b. cholesterol
c. starch
d. saturated fats


Because carbon atoms have four electrons in their outermost energy level, they can form up to _________ covalent bonds with other atoms.


Energy is released when the bond between (put letter)
a. carbon atoms in ATP is broken
b. two ATP molecules is broken
c. ribose and adenine in ATP is broken
d. phosphate groups in ATP is broken


All organic compounds contain the element ________.


Amino acids are monomers of _________.


Polysaccharides are
a. proteins
b. lipids
c. unsaturated fats
d. carbohydrates


A substrate attaches to the _____________ of an enzyme

active site

A long centipede looking chain is found in:
a. carbs
b. proteins
c. nucleic acids
d. lipids


In a triple bond, __ pairs of electrons (are) shared between two atoms


Lipids are:
a. protein molecule
b. nonpolar molecules
c. similar to water molecules
d. polar molecules


Carbon atoms can bond together to form all of the following except
a. inorganic structures
b. branched structures
c. straight chain structures
d. ring structures

inorganic structures

Nuclei acids include:
a. lipids and sugars
b. glucose and glycogen
c. chlorophyll and retinal
d. DNA and RNA


Saturated fatty acids contain: (letter)
a. carbon atoms linked by double bonds
b. more than 100 carbon atoms
c. no carboxyl
d. carbon atoms that are each bonded to four other atoms


The formation of ADP and inorganic phosphate from ATP and water is an example of which kind of reaction?
a. polymerization
b. oxidation
c. condensation
d. hydrolysis


All of the following are functional groups except:
a. the hydroxyl group
b. a carbonate group
c. an amino group
d. a carboxyl group

a carbonate group

In the molecule that has the chemical formula C2H4, the carbon atoms are bonded together with a _______ bond.


Which organic molecule below is most closely related to proteins?
a. amino acids
b. CH2 chains
c. sugars
d. nucleotides

amino acids

Carbon is different from many other elements in that: (letter)
a. it readily bonds with other carbon atoms
b it has four electrons in its outermost energy level
c. it can form single,double, or triple bonds
d. all of the above


In a condensation reaction, two molecules become linked together and a molecule of _____ is produced


ATP contains ___ phosphate groups


Without enzymes, the chemical reactions in the body would: (letter)
a. occur at much the same rate as they do with enzymes
b. happen too fast
c. occur too slowly to support life processes
d. require a different pH.


Animals store glucose in the form of:
a. wax
b. glycogen
c. lipids
d. cellulose


The formation of polymers from monomers occurs as a resuly of _________ reactions, and the breakdown of polymers into monomers occurs as a result of __________ reactions.

condensation, hydrolysis

ALl of the following are examples of carbs except:
a. glycogen
b. steroids
c. cellulose
d. sugar


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