BIOD 171 MODULE 1 EXAMINATION REVIEW
2026 QUESTIONS AND VERIFIED SOLUTIONS
◉ True or False: The smallest biological unit of life is the molecule.
Answer: False
◉ At a generalized level, all cells are comprised of what? Answer:
Macromolecules
A student may also answer: Proteins, Lipids, Nucleic acids and
Polysaccharides but they must answer with all four to be fully
correct.
◉ Proteins are formed from various combinations of _______ of which
there are ______ known forms. Answer: 1. Amino acids
2. 20
◉ How many amino acids are classified as being essential amino
acids? Answer: 9
◉ The plasma membrane (select all that are true):
A. Restricts movement of materials in and out of the cell
, B. Is often a triple layer comprised of lipids
C. Prevents essential nutrients from escaping
D. Contains hydrophobic tails pointing outward Answer: A;C
◉ Complete the following DNA strand, and indicate how many bonds
are formed for each complementary pair:
3' GGTCATCG 5'
5' CC _____AGC 3' Answer: 3' GGTCATCG 5'
5' CCAGTAGC 3'
There are 2 bonds formed between A and T, and 3 bonds between G
and C.
◉ True of False: The genetic material within a prokaryotic cell is
contained within a membrane-enclosed region. Answer: False
◉ How many carbon atoms are present in the monosaccharide
glucose? Answer: 6
◉ Describe the 4 basic bacterial morphologies. Answer: Coccus
(round/spherical), bacillus (rod), vibrio (curved rod) or spirillum
(spiral/corkscrew).
2026 QUESTIONS AND VERIFIED SOLUTIONS
◉ True or False: The smallest biological unit of life is the molecule.
Answer: False
◉ At a generalized level, all cells are comprised of what? Answer:
Macromolecules
A student may also answer: Proteins, Lipids, Nucleic acids and
Polysaccharides but they must answer with all four to be fully
correct.
◉ Proteins are formed from various combinations of _______ of which
there are ______ known forms. Answer: 1. Amino acids
2. 20
◉ How many amino acids are classified as being essential amino
acids? Answer: 9
◉ The plasma membrane (select all that are true):
A. Restricts movement of materials in and out of the cell
, B. Is often a triple layer comprised of lipids
C. Prevents essential nutrients from escaping
D. Contains hydrophobic tails pointing outward Answer: A;C
◉ Complete the following DNA strand, and indicate how many bonds
are formed for each complementary pair:
3' GGTCATCG 5'
5' CC _____AGC 3' Answer: 3' GGTCATCG 5'
5' CCAGTAGC 3'
There are 2 bonds formed between A and T, and 3 bonds between G
and C.
◉ True of False: The genetic material within a prokaryotic cell is
contained within a membrane-enclosed region. Answer: False
◉ How many carbon atoms are present in the monosaccharide
glucose? Answer: 6
◉ Describe the 4 basic bacterial morphologies. Answer: Coccus
(round/spherical), bacillus (rod), vibrio (curved rod) or spirillum
(spiral/corkscrew).
