MCB 2610 Exam 1 Questions With Correct
Answers
Which of the following is a microorganism?
a. Bacteria
b. Plants
c. Viruses - answerbacteria
Which of the following is not a characteristic of life?
a. Respond to stimuli
b. Evolution
c. Being multicellular
d. Homeostasis - answerbeing multic...
Which of the following is a microorganism?
a. Bacteria
b. Plants
c. Viruses - answer✔✔bacteria
Which of the following is not a characteristic of life?
a. Respond to stimuli
b. Evolution
c. Being multicellular
d. Homeostasis - answer✔✔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 - answer✔✔to catalyze chemical reactions
True or False: Viruses do not meet the commonly held definition for living organisms -
answer✔✔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 - answer✔✔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 - answer✔✔RNA
What are the three domains of life?
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 - answer✔✔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 - answer✔✔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 - answer✔✔endosymbiosis of bacteria
True or False: The appearance of plants in evolutionary history led to the abundance of
molecular oxygen in the atmosphere and the rise of aerobic organisms. - answer✔✔false
Transcription is
a. Protein synthesis from an mRNA template.
b. Lipid synthesis from fatty acids and glycerol.
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