Answers26-27 Biology ALab: Building Proteins from RNA

Week 11: Bacteria Characteristics Answers

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Which best describes mitochondrial DNA (mtDNA)?

A
Mitochondrial DNA is the same as nuclear DNA.
B
Mitochondrial DNA is inherited through the father.
C
Mitochondrial DNA can be traced for generations.
D
Mitochondrial DNA requires large amounts for testing.
2
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A diseased cell is no longer able to produce proteins. Which cell structure is most likely malfunctioning?

A
cell membrane
B
cytoplasm
C
ribosome
D
mitochondrion
3

Gina is studying a cell under a powerful microscope. The cell does not contain membrane-bound organelles.Which cell is Gina most likely studying?

A
an animal cell
B
a bacterial cell
C
a plant cell
D
a protist cell
4

A student wonders whether removing the nucleus from a cell would result in a new prokaryotic cell. Why would this procedure fail to produce a prokaryotic cell?

A
The cell would lack genetic information.
B
The cell would lack the structure that is needed to produce energy.
C
The cell would lack the structure that is needed to protect the cell’s organelles.
D
The cell would lack control over materials that move into and out of the cell.
5

Which cell structure serves the stated function in both eukaryotic and prokaryotic cells?

A
nucleus: stores genetic material
B
cytoplasm: protects cell structures
C
ribosomes: regulate cell processes
D
DNA: surrounds cell contents
6

Which structure is unique to eukaryotic cells?

A
DNA
B
cell membrane
C
ribosomes
D
nucleus
7

Which discovery supported the endosymbiotic theory?

A
DNA in mitochondria
B
DNA in the cell nucleus
C
DNA in ribosomes
D
DNA in the cytoplasm
8

Based on the endosymbiotic theory, what cell would result from the endosymbiosis of a cell with a cyanobacterium?

A
a eukaryotic cell that can make its own food
B
a prokaryotic cell that can make its own food
C
an aerobic bacterium
D
an anaerobic bacterium
9

A scientist is studying a cell and can clearly see that it has ribosomes and mitochondria. Which statement best describes how the cell could be classified?

A
The cell is prokaryotic because it contains ribosomes.
B
The cell is prokaryotic because it contains mitochondria.
C
The cell is eukaryotic because it contains ribosomes.
D
The cell is eukaryotic because it contains mitochondria.
10

The discovery of mitochondrial DNA (mtDNA) had no effect on which area of scientific investigation?

A
endosymbiotic theory
B
inheritance research
C
forensic science
D
study of cork bark

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