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Lecture 3: Food
N/A
22
Biology
Undergraduate 3
04/13/2013

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Term
Carbon usually forms how many bonds with other atoms?
Definition
4
Term
The atom diagnostically associated with organic compounds is...
Definition
carbon
Term
Each carbon atom can share pairs of electrons with as many as _____ other atoms.
Definition
4
Term
An -OH group is a(n) __________ group.
Definition
hydroxyl
Term
An -NH2 group is a(n) __________ group.
Definition
amino
Term
A -COOH group is a(n) __________ group.
Definition
carboxyl
Term
The following is composed of a 1:2:1 ratio of carbon to hydrogen to oxygen?
Definition
carbohydrate
Term
_____ is a simple sugar (monosaccharide).
a. Glucose
b. Sucrose
c. Ribose
d. Chitin
e. both a and c
Definition
e
Term
Glycogen is a polysaccharide used for energy storage by ___
Definition
animals
Term
What is starch?
Definition
A polysaccharide formed by a series of condensation reactions
Term
Which of the following is true of monosaccharides?
a. Monosaccharides include starch, cellulose, and glycogen.
b. Monosaccharides are the monomers of polysaccharides.
c. Monosaccharides do not dissolve appreciably in water.
d. Monosaccharides contain carbon, hydrogen, and oxygen in about a 1:1:1 ratio.
e. None of the above statements are true.
Definition
b
Term
Triglycerides are ___
Definition
fats
Term
Plasma membranes are characterized by the presence of ___
Definition
phospholipids
Term
All steroids have ___
Definition
four rings of carbon to which are attached other atoms
Term
A fatty acid with one or more double bonds in its hydrocarbon chain is said to be
Definition
unsaturated
Term
In unsaturated fats, fatty acid tails have one or more _____.
Definition
double covalent bonds
Term
Amino acids are the building blocks for ___
Definition
proteins
Term
Amino acids are the building blocks for ___
Definition
peptide
Term
The secondary structure of proteins can be
a. helical.
b. sheetlike.
c. globular.
d. the sequence of amino acids.
e. both helical and sheetlike.
Definition
e
Term
Nucleotides contain what kind of sugars?
Definition
five-carbon
Term
_____ are to nucleic acids as monomers are to polymers
Definition
Nucleotides
Term
A denatured protein or DNA molecule has lost its _____
a. hydrogen bonds
b. shape
c. function
d. all of the above
Definition
d
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