BIO 155 Exam 2 Questions And Answers
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Which of the following organelles would only be found within a cell that was both eukaryotic
and autotrophic? - ANS Chloroplast
After being formed by the ribosomes located on the endoplasmic reticulum, what is the next
organelle to which a protein could be transported? - ANS Golgi apparatus
Which of the following help direct the movement of materials or organelles throughout the
cell? - ANS all the choices are true
Which is NOT true about the cell theory? - ANS the general concept of life is cellular still
holds because these organisms still utilize cells sometime in their life, but this shows that cell
membrane partitions can be abandoned.
Which is NOT a reason for the small size of cells? - ANS The increased number of organelles
requires that eukaryotic cells be smaller than prokaryotic cells
A high powered microscope that produces an image from scattered secondary electrons is the -
ANS SEM
A microscope that uses antibodies that glow to reveal the location of a protein in a cell is -
ANS phase contrast light microscope
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A microscope that uses antibodies that glow to reveal the location of a protein in a cell is the -
ANS immuno microscope
Which statement is NOT true about bacteria ? - ANS Their cell wall is made of a slime layer
that is the same as in plant cell walls
Which statement is NOT true about bacterial anatomy? - ANS The glycocalyx sheath is
located inside the cell wall
An amino sugar called N-acetylmuramic acid is an important building block of the cell wall of
some bacteria. Penicillin prevents this amino sugar from being incorporated into the bacterial
cell wall. Therefore, - ANS All of the choices are correct.
Most bacteria live in a solution that is
hypotonic relative to the cytoplasm of the bacteria. The cell wall of a bacterium is a
peptidoglycan polymer that is tightly cross-linked. This would therefore function to -
ANS provide a rigid wall that prevents the cell wall from swelling
Which term is based on the Greek root words for "before" and "kernel"? - ANS prokaryote
Which is NOT true of eukaryotic cells? - ANS They contain ribosomes that are smaller than
those of prokaryotic cells.
Cells that do NOT produce cell walls are - ANS animal cells
The Greek root word that means "true kernel" is - ANS eukaryote
Which of the following is NOT offered as evidence in support of the endosymbotic theory, the
belief that a eukaryotic cell has evolved as a "committee" of prokaryotic cells? -