BIO 353 EXAM STUDY UPDATED
ACTUAL Exam Questions and CORRECT
Answers
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 - CORRECT ANSWER -(e) none of the above.
(T/F) Single-celled organisms have a limited number of biomolecular machines within them. -
CORRECT ANSWER -true.
(T/F) An evolutionary advancement occurred when organisms became multicellular and acquired
a division of labor. - CORRECT ANSWER -true.
(T/F) When a cell is anchorage-dependent for growth, it can then go through the cell cycle when
it is suspended. - CORRECT ANSWER -false.
Contact inhibition is a subset of ________. - CORRECT ANSWER -anchorage
dependence for growth.
What limits the growth of a tumor? - CORRECT ANSWER -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? - CORRECT ANSWER -
PBS made 0.5% with trypsin and 3mM with MgCl2.
, What happens in primary culture? - CORRECT ANSWER -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. - CORRECT
ANSWER -(ESSAY)
(ESSAY) What are the limitations of cell culture technology? - CORRECT ANSWER -
(ESSAY)
(T/F) Peroxisomes likely originated from endosymbiosis. - CORRECT ANSWER -false.
(T/F) Peroxisomes increase the fitness of the primitive proto-prokaryote by removing toxic
oxygen in the ancient earth. - CORRECT ANSWER -true.
(T/F) The endomembrane system supposedly resulted in the formation of the nuclear envelope,
endoplasmic reticulum, Golgi apparatus and primary lysosomes. - CORRECT ANSWER -
true.
Loss of the cell wall:
(a) is unique to plants
(b) occurs only for the endosymbiosis theory
(c) occurs both for the endosymbiosis theory and for the endomembrane system
(d) made the plasma membrane become rigid
(e) occurred due to love levels of oxygen - CORRECT ANSWER -(c) occurs both for the
endosymbiosis theory and for the endomembrane system
(T/F) The primitive protoprokaryote likely acquired motility before it lost the cell wall. -
CORRECT ANSWER -false.
ACTUAL Exam Questions and CORRECT
Answers
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 - CORRECT ANSWER -(e) none of the above.
(T/F) Single-celled organisms have a limited number of biomolecular machines within them. -
CORRECT ANSWER -true.
(T/F) An evolutionary advancement occurred when organisms became multicellular and acquired
a division of labor. - CORRECT ANSWER -true.
(T/F) When a cell is anchorage-dependent for growth, it can then go through the cell cycle when
it is suspended. - CORRECT ANSWER -false.
Contact inhibition is a subset of ________. - CORRECT ANSWER -anchorage
dependence for growth.
What limits the growth of a tumor? - CORRECT ANSWER -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? - CORRECT ANSWER -
PBS made 0.5% with trypsin and 3mM with MgCl2.
, What happens in primary culture? - CORRECT ANSWER -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. - CORRECT
ANSWER -(ESSAY)
(ESSAY) What are the limitations of cell culture technology? - CORRECT ANSWER -
(ESSAY)
(T/F) Peroxisomes likely originated from endosymbiosis. - CORRECT ANSWER -false.
(T/F) Peroxisomes increase the fitness of the primitive proto-prokaryote by removing toxic
oxygen in the ancient earth. - CORRECT ANSWER -true.
(T/F) The endomembrane system supposedly resulted in the formation of the nuclear envelope,
endoplasmic reticulum, Golgi apparatus and primary lysosomes. - CORRECT ANSWER -
true.
Loss of the cell wall:
(a) is unique to plants
(b) occurs only for the endosymbiosis theory
(c) occurs both for the endosymbiosis theory and for the endomembrane system
(d) made the plasma membrane become rigid
(e) occurred due to love levels of oxygen - CORRECT ANSWER -(c) occurs both for the
endosymbiosis theory and for the endomembrane system
(T/F) The primitive protoprokaryote likely acquired motility before it lost the cell wall. -
CORRECT ANSWER -false.
