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Which of the following is a microorganism?
a. Bacteria
b. Plants
c. Viruses CORRECT ANS-bacteria
Which of the following is not a characteristic of life?
a. Respond to stimuli
b. Evolution
c. Being multicellular
d. Homeostasis CORRECT ANS-being multicellular
Which of the following may be a function of proteins within a cell?
a. To be a polypeptide
b. To catalyze chemical reactions
c. To provide instructions for assembly of polypeptides
d. Energy storage CORRECT ANS-to catalyze chemical reactions
, EXAM 1: MCB 2610 Exam 1 Questions and Answers
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True or False: Viruses do not meet the commonly held definition for living organisms
CORRECT ANS-true
Which of the following is not a characteristic that distinguishes living organisms from
nonliving?
a. DNA as the genetic material
b. Metabolism
c. Growth
d. Reproduction CORRECT ANS-DNA as the genetic material
Due to its versatility, many scientists have hypothesized this molecule may have formed the
basis for early life on earth.
a. RNA
b. Amino acids
c. Lipids
d. DNA CORRECT ANS-RNA
What are the three domains of life?
, EXAM 1: MCB 2610 Exam 1 Questions and Answers
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a. Monera, Animals, and Plants
b. Prokaryote, Eukaryote, and Archaea
c. Prokaryote, Eukaryote, and Fungi
d. Bacteria, Archaea, and Eukarya
e. Animals, Plants, and Bacteria CORRECT ANS-Bacteria, Archaea, and Eukarya
Which of the following is NOT likely to be true of primitive microbes?
a. They were aerobic
b. They were photosynthetic
c. They could survive in acidic conditions
d. They had a plasma membrane CORRECT ANS-they were aerobic
What is the likely origin of eukaryal mitochondria and chloroplasts?
a. Membrane invagination
b. Endosymbiosis of bacteria
c. Engulfment of other eukaryal cells
d. Fusion of bacterial and eukaryal cells CORRECT ANS-endosymbiosis of bacteria