[APBIO] UNIT 1 AP CLASSROOM
EXAM QUESTIONS AND ANSWERS
an amino acid must have which of the following properties in order to be incorporated
into a polypeptide? - Correct Answers -The ability to form a covalent bond with both its
NH2 group and its COOH group.
Which of the following would most likely occur if cattle lost the ability to maintain a
colony of microorganisms in their digestive tract? - Correct Answers -Cattle would no
longer be able to use cellulose as a primary source of glucose.
which describes why starch and cellulose provide different functions in plants? - Correct
Answers -The difference in assembly and organization of the monomers of these two
polymers result in different chemical properties.
how is water pulled up through the xylem to the leaves of the plants? - Correct Answers
-as water exits the lead, H bonding between water molecules pulls more water up from
below.
which of the following describes a key difference among the 20 amino acids that are
used to make proteins? - Correct Answers -some amino acids are hydrophobic.
difference in leaf growth? - Correct Answers -phosphorus-starved plant was unable to
synthesize both required nucleic acids and lipids, limiting growth.
which of the following best compares the atomic structures of starch and cellulose? -
Correct Answers -Starch and cellulose are composed of repeating glucose monomers,
however in cellulose, every other glucose monomer is rotates 180 degrees.
which of the following describes reactions of linking of monomers of to form
macromolecules? - Correct Answers -monomers are joined by a covalent bond, and a
water molecule is produced.
which of the following models best demonstrates the arrangement hydrogen bonds
between adjacent water molecules? - Correct Answers -H--O
DNA nucleotides? - Correct Answers -Cytosine (C), thymine (T), adenine (A), guanine
(G)
EXAM QUESTIONS AND ANSWERS
an amino acid must have which of the following properties in order to be incorporated
into a polypeptide? - Correct Answers -The ability to form a covalent bond with both its
NH2 group and its COOH group.
Which of the following would most likely occur if cattle lost the ability to maintain a
colony of microorganisms in their digestive tract? - Correct Answers -Cattle would no
longer be able to use cellulose as a primary source of glucose.
which describes why starch and cellulose provide different functions in plants? - Correct
Answers -The difference in assembly and organization of the monomers of these two
polymers result in different chemical properties.
how is water pulled up through the xylem to the leaves of the plants? - Correct Answers
-as water exits the lead, H bonding between water molecules pulls more water up from
below.
which of the following describes a key difference among the 20 amino acids that are
used to make proteins? - Correct Answers -some amino acids are hydrophobic.
difference in leaf growth? - Correct Answers -phosphorus-starved plant was unable to
synthesize both required nucleic acids and lipids, limiting growth.
which of the following best compares the atomic structures of starch and cellulose? -
Correct Answers -Starch and cellulose are composed of repeating glucose monomers,
however in cellulose, every other glucose monomer is rotates 180 degrees.
which of the following describes reactions of linking of monomers of to form
macromolecules? - Correct Answers -monomers are joined by a covalent bond, and a
water molecule is produced.
which of the following models best demonstrates the arrangement hydrogen bonds
between adjacent water molecules? - Correct Answers -H--O
DNA nucleotides? - Correct Answers -Cytosine (C), thymine (T), adenine (A), guanine
(G)
