UW Madison Bio 101 Exam 1 Questions and
Answers 100% Pass
What is a covalent bond? - ANS When two atoms share electrons
What are the three key polar covalent bonds (for the sake of this class)? - ANS O-H, N-H, S-H
What can H bond to? - ANS Other polar molecules and water.
How are polymers built? - ANS Through dehydration reactions (Monomer in, water out)
How are polymers broken down? - ANS Through hydrolysis reactions (Water in, monomer
out)
What is the identifying shape of a carbohydrate? - ANS Ring-shaped
What is the function of a disaccharide? - ANS To be broken down for quick energy.
What is the function of glucose? - ANS Glucose is a monosaccharide that is used as fuel to
make ATP.
T/F: All polysaccharides are composed of glucose. - ANS True
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What is the function of a starch? Where is it found? - ANS Function: Energy Storage
Found: in plants
What is the function of glycogen? Where is it found? - ANS Function: energy storage
Found: animals
What is the function of cellulose? Where is it found? - ANS Function: Structural
Found: Plant cells
What is the function of chitin? Where is it found? - ANS Function: Structural
Found: Insects, some animals, fungi
Can animals break down cellulose? - ANS No. Cows can only break down cellulose because of
microorganisms within their stomach that can.
Describe what a protein structure looks like? - ANS A central carbon is bonded to an amino
group, a hydrogen, a carboxyl group, and a varying R group.
Which end of a polypeptide is read first; the carboxyl terminus or amino terminus? - ANS The
amino terminus
What must happen to a polypeptide before it can become a functioning protein? - ANS It
must fold.
What is the first level (degree) of protein structure? - ANS It is the linked series of amino
acids and their unique sequence.
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