BIO 353 EXAM STUDY QUESTIONS
AND ANSWERS 100% PASS
Filopodia contain receptors that sense the environment and...
(a) all filopodia stop moving when the cell is about to extend a lamellpodium
(b) as a first step in walking the lamelipodium forms before the filopodium
(c) a lamellipodium extends only from filopodia that continue to move
(d) two of the above
(e) none of the above - ✔✔(e) none of the above.
(T/F) Single-celled organisms have a limited number of biomolecular machines within
them. - ✔✔true.
(T/F) An evolutionary advancement occurred when organisms became multicellular
and acquired a division of labor. - ✔✔true.
(T/F) When a cell is anchorage-dependent for growth, it can then go through the cell
cycle when it is suspended. - ✔✔false.
Contact inhibition is a subset of ________. - ✔✔anchorage dependence for growth.
Katelyn Whitman, All Rights Reserved © 2025 1
, What limits the growth of a tumor? - ✔✔invasion by capillaries.
When the 1mm2 tissue fragment is place in the Erlenmeyer flask to loosen the cells in
the tissue (primary explant), what were the components of the medium? - ✔✔PBS made
0.5% with trypsin and 3mM with MgCl2.
What happens in primary culture? - ✔✔Some cells walk out of chunks and adhere to
the plate.
Some cells escape but don't adhere to the plate.
Some cells die.
(ESSAY) Explain two methods of making a cell line in detail? Assume in this answer
you are starting with the end of secondary culture moving into making up the cell line. -
✔✔(ESSAY)
(ESSAY) What are the limitations of cell culture technology? - ✔✔(ESSAY)
(T/F) Peroxisomes likely originated from endosymbiosis. - ✔✔false.
(T/F) Peroxisomes increase the fitness of the primitive proto-prokaryote by removing
toxic oxygen in the ancient earth. - ✔✔true.
(T/F) The endomembrane system supposedly resulted in the formation of the nuclear
envelope, endoplasmic reticulum, Golgi apparatus and primary lysosomes. - ✔✔true.
Loss of the cell wall:
Katelyn Whitman, All Rights Reserved © 2025 2
AND ANSWERS 100% PASS
Filopodia contain receptors that sense the environment and...
(a) all filopodia stop moving when the cell is about to extend a lamellpodium
(b) as a first step in walking the lamelipodium forms before the filopodium
(c) a lamellipodium extends only from filopodia that continue to move
(d) two of the above
(e) none of the above - ✔✔(e) none of the above.
(T/F) Single-celled organisms have a limited number of biomolecular machines within
them. - ✔✔true.
(T/F) An evolutionary advancement occurred when organisms became multicellular
and acquired a division of labor. - ✔✔true.
(T/F) When a cell is anchorage-dependent for growth, it can then go through the cell
cycle when it is suspended. - ✔✔false.
Contact inhibition is a subset of ________. - ✔✔anchorage dependence for growth.
Katelyn Whitman, All Rights Reserved © 2025 1
, What limits the growth of a tumor? - ✔✔invasion by capillaries.
When the 1mm2 tissue fragment is place in the Erlenmeyer flask to loosen the cells in
the tissue (primary explant), what were the components of the medium? - ✔✔PBS made
0.5% with trypsin and 3mM with MgCl2.
What happens in primary culture? - ✔✔Some cells walk out of chunks and adhere to
the plate.
Some cells escape but don't adhere to the plate.
Some cells die.
(ESSAY) Explain two methods of making a cell line in detail? Assume in this answer
you are starting with the end of secondary culture moving into making up the cell line. -
✔✔(ESSAY)
(ESSAY) What are the limitations of cell culture technology? - ✔✔(ESSAY)
(T/F) Peroxisomes likely originated from endosymbiosis. - ✔✔false.
(T/F) Peroxisomes increase the fitness of the primitive proto-prokaryote by removing
toxic oxygen in the ancient earth. - ✔✔true.
(T/F) The endomembrane system supposedly resulted in the formation of the nuclear
envelope, endoplasmic reticulum, Golgi apparatus and primary lysosomes. - ✔✔true.
Loss of the cell wall:
Katelyn Whitman, All Rights Reserved © 2025 2
