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1What four groups of macromolecules will you study in today's lab?


2In a macromolecule, subunits are linked by a process called ________, in which energy is required to join two subunits with a covalent bond and a molecule of water is removed.


3In a macromolecule, the process of _______ occurs when a bond is broken between subunits, energy is released, and a molecule of water is required.


4Circle the correct answer. A positive / negative control contains the variable for which you are testing; it reacts positively and demonstrates the test's ability to detect what you expect.
A)positive
B)negative


5How many subunits are in a monosaccharide? disaccharide? polysaccharide?


6In proteins, a ________ bond links the amino group of one amino acid with the carboxyl group of another amino acid.
A)peptide
B)polar
C)hydrogen
D)valine


7Lipids are soluble in water.
A)True
B)False


8Triglycerides are made up of one ________ molecule for every three ________molecules.


9What are the three building-blocks of a nucleotide?


10What molecules form the bond holding nucleotides together?


11Amino acids, the subunits of proteins, are made of what three parts?


12What are the differences between RNA and DNA?


13A Biuret test detects the presence of ________.
A)starch
B)triglycerides
C)DNA
D)protein
E)reducing sugars


14A Dische diphenylamine test detects the presence of ________.
A)starch
B)triglycerides
C)DNA
D)protein
E)reducing sugars


15


hair
16


triglycerides
17


RNA
18


cellulose
Answer choices:
A)glucose
B)amino acids
C)nucleotides
D)glycerol and three fatty acids





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