ASU BIO 181 EXAM 1 QUESTIONS WITH
CORRECT ANSWERS 2025-2026
The association of ribosomes with invaginations would support the theory.
CORRECT ANSWER membrane, endomembrane
After a cell is pancake shaped in a cell culture dish, the order of events that occurs as a cell walks is?
CORRECT ANSWER filapodia, lamellipodia, cell muscle, retraction fiber
T/F It is presumed that the peroxisomes evolved in these primitive, proto-
eukaryotes to remove oxygen, which was toxic to the primitive cells. CORRECT ANSWER true
T/F In an extant prokaryotic cell the outer boundary of life is the capsule. CORRECT ANSWER false
T/F When cancer cells are crowded by surrounding cells, the cancer cells become spherical and they can
still go through cell division. CORRECT ANSWER true
T/F Loss of the cell wall was required for the endomembrane system theory. CORRECT ANSWER true
T/F Fluorescence microscopy is form of light microscopy CORRECT ANSWER true
T/F Loss of the cell wall is required for the endosymbiotic theory. CORRECT ANSWER true
T/F TEM provides a thin, two-dimensional section of the object being studied. CORRECT ANSWER true
T/F The sytoskeleton enabled the primitive cell to become motile. CORRECT ANSWER true
T/F the ancient earth did not contain much oxygen CORRECT ANSWER true
A normal cell is and for growth. CORRECT ANSWER mortal, anchorage dependent
, T/F Ribosomes bound to some of the membrane invaginations in the endomembrane theory
CORRECT ANSWER true
T/F the cytoskeleton gave rise to the nuclear envelope CORRECT ANSWER false
What limits how big a cell can be? CORRECT ANSWER the surface area to volume ratio
T/F DNA in extant prokaryotic cells is circular. CORRECT ANSWER True
Why did Motility improved the fitness of these early cells? CORRECT
ANSWER it allowed them to move away from predators and towards food
T./F the end of the retraction fiber touching the cell culture plate still contains the cell equivalent of sup
er glue. CORRECT ANSWER true
T/F the presumed first step in the transition of the primitive, proto-
prokaryotic cell into the primitive, proto-eukaryotic cell was the loss of the cell wall.
CORRECT ANSWER true
1n order to examine cellsRwhich are smaller than can be detected by the human senses what needs to b
e used ? CORRECT ANSWER technology
A cell that is itself an organism must have a minimum of four needs presented in lecture
CORRECT ANSWER find food, find shelter, find mate, and reproduce.
compared to bacteria which of the cell types below are not responsible for finding food?
CORRECT ANSWER lymphocyte, macrophage, and fibroblast
T/F In your own mulitcellular body, different cells in your body have a division of labor between them.
CORRECT ANSWER true
CORRECT ANSWERS 2025-2026
The association of ribosomes with invaginations would support the theory.
CORRECT ANSWER membrane, endomembrane
After a cell is pancake shaped in a cell culture dish, the order of events that occurs as a cell walks is?
CORRECT ANSWER filapodia, lamellipodia, cell muscle, retraction fiber
T/F It is presumed that the peroxisomes evolved in these primitive, proto-
eukaryotes to remove oxygen, which was toxic to the primitive cells. CORRECT ANSWER true
T/F In an extant prokaryotic cell the outer boundary of life is the capsule. CORRECT ANSWER false
T/F When cancer cells are crowded by surrounding cells, the cancer cells become spherical and they can
still go through cell division. CORRECT ANSWER true
T/F Loss of the cell wall was required for the endomembrane system theory. CORRECT ANSWER true
T/F Fluorescence microscopy is form of light microscopy CORRECT ANSWER true
T/F Loss of the cell wall is required for the endosymbiotic theory. CORRECT ANSWER true
T/F TEM provides a thin, two-dimensional section of the object being studied. CORRECT ANSWER true
T/F The sytoskeleton enabled the primitive cell to become motile. CORRECT ANSWER true
T/F the ancient earth did not contain much oxygen CORRECT ANSWER true
A normal cell is and for growth. CORRECT ANSWER mortal, anchorage dependent
, T/F Ribosomes bound to some of the membrane invaginations in the endomembrane theory
CORRECT ANSWER true
T/F the cytoskeleton gave rise to the nuclear envelope CORRECT ANSWER false
What limits how big a cell can be? CORRECT ANSWER the surface area to volume ratio
T/F DNA in extant prokaryotic cells is circular. CORRECT ANSWER True
Why did Motility improved the fitness of these early cells? CORRECT
ANSWER it allowed them to move away from predators and towards food
T./F the end of the retraction fiber touching the cell culture plate still contains the cell equivalent of sup
er glue. CORRECT ANSWER true
T/F the presumed first step in the transition of the primitive, proto-
prokaryotic cell into the primitive, proto-eukaryotic cell was the loss of the cell wall.
CORRECT ANSWER true
1n order to examine cellsRwhich are smaller than can be detected by the human senses what needs to b
e used ? CORRECT ANSWER technology
A cell that is itself an organism must have a minimum of four needs presented in lecture
CORRECT ANSWER find food, find shelter, find mate, and reproduce.
compared to bacteria which of the cell types below are not responsible for finding food?
CORRECT ANSWER lymphocyte, macrophage, and fibroblast
T/F In your own mulitcellular body, different cells in your body have a division of labor between them.
CORRECT ANSWER true
