BS 161 Exam #3 with correct answers
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During |photosynthesis,__________ |is |reduced |to |_____________ |- |correct |answersCO2 |is |
reduced |to |sugar
In |plants, |the |ultimate |electron |donor |in |photosynthesis |is |- |correct |answerswater
Which |of |the |following |sequences |correctly |represents |the |flow |of |energy |through |living |
systems? |- |correct |answerslight |- |photosynthesis |- |carbohydrate |- |cellular |respiration |- |ATP |- |
heat
In |animal |cells, |most |ATP |synthesis |takes |place |in
mitochondria, |but |in |plant |cells, |most |of |the |ATP |used |by |plant |cells |is |made |in |the |
chloroplasts. |- |correct |answersfalse
A |new |experimental |pesticide |is |being |tested |by |a |large |agricultural
chemical |company. |An |unfortunate |side |effect |in |plants |treated |with
this |new |product |is |a |decrease |in |ATP |production |in |the |chloroplasts.
(Interestingly, |production |of |ATP |in |the |mitochondria |is |unaffected.)
Given |this |observation, |which |of |the |following |would |you |expect |to |be
directly |affected |by |the |new |pesticide?
A. |the |synthesis |of |triose |phosphates |from |3-phosphoglycerate
B. |the |transport |of |electrons |along |the |photosynthe |- |correct |answersA. |the |synthesis |of |triose
|phosphates |from |3-phosphoglycerate
Which |of |the |following |is |not |part |of |the |general |response |of |cells
during |cellular |communication?
A. |The |cell |does |not |return |to |its |normal |activities |after |the |signal |has
, exerted |its |effect.
B. |Receptors |on |the |outside |of |the |cell |bind |to |specific |signal |molecules.
C. |A |cell-surface |receptor |molecule |becomes |activated |by |binding |to |a
molecular |signal.
D. |An |activated |cell-surface |receptor |transfers |the |signal |to |the |interior
of |the |cell.
E. |The |signal |is |transmitted |inside |the |cell |and |amplifi |- |correct |answersA. |The |cell |does |not |
return |to |its |normal |activities |after |the |signal |has
exerted |its |effect.
Choose |from |the |following |terms |to |fill |in |the |blanks |in |the |correct |order.
A. |ligand
B. |signaling |cell
C. |receptor
D. |responding |cell
In |communication |between |cells, |the |_____________________ |produces |the
signaling |molecule, |also |known |as |the |________________; |the
______________________ |produces |the |_______________, |to |which |the |signaling
molecule |binds.
A. |B, |A, |D, |C
B. |A, |B, |C, |D
C. |B, |C, |A, |D
D. |D, |C, |B, |A |- |correct |answersA. |B, |A, |D, |C
Which |of |the |following |types |of |cellular |activities |can |be |a |response |to |cell |signaling?
A. |Cell |division |is |triggered.
B. |Gene |expression |patterns |are |changed.
C. |Enzyme |activities |are |changed.
| | | | | |
During |photosynthesis,__________ |is |reduced |to |_____________ |- |correct |answersCO2 |is |
reduced |to |sugar
In |plants, |the |ultimate |electron |donor |in |photosynthesis |is |- |correct |answerswater
Which |of |the |following |sequences |correctly |represents |the |flow |of |energy |through |living |
systems? |- |correct |answerslight |- |photosynthesis |- |carbohydrate |- |cellular |respiration |- |ATP |- |
heat
In |animal |cells, |most |ATP |synthesis |takes |place |in
mitochondria, |but |in |plant |cells, |most |of |the |ATP |used |by |plant |cells |is |made |in |the |
chloroplasts. |- |correct |answersfalse
A |new |experimental |pesticide |is |being |tested |by |a |large |agricultural
chemical |company. |An |unfortunate |side |effect |in |plants |treated |with
this |new |product |is |a |decrease |in |ATP |production |in |the |chloroplasts.
(Interestingly, |production |of |ATP |in |the |mitochondria |is |unaffected.)
Given |this |observation, |which |of |the |following |would |you |expect |to |be
directly |affected |by |the |new |pesticide?
A. |the |synthesis |of |triose |phosphates |from |3-phosphoglycerate
B. |the |transport |of |electrons |along |the |photosynthe |- |correct |answersA. |the |synthesis |of |triose
|phosphates |from |3-phosphoglycerate
Which |of |the |following |is |not |part |of |the |general |response |of |cells
during |cellular |communication?
A. |The |cell |does |not |return |to |its |normal |activities |after |the |signal |has
, exerted |its |effect.
B. |Receptors |on |the |outside |of |the |cell |bind |to |specific |signal |molecules.
C. |A |cell-surface |receptor |molecule |becomes |activated |by |binding |to |a
molecular |signal.
D. |An |activated |cell-surface |receptor |transfers |the |signal |to |the |interior
of |the |cell.
E. |The |signal |is |transmitted |inside |the |cell |and |amplifi |- |correct |answersA. |The |cell |does |not |
return |to |its |normal |activities |after |the |signal |has
exerted |its |effect.
Choose |from |the |following |terms |to |fill |in |the |blanks |in |the |correct |order.
A. |ligand
B. |signaling |cell
C. |receptor
D. |responding |cell
In |communication |between |cells, |the |_____________________ |produces |the
signaling |molecule, |also |known |as |the |________________; |the
______________________ |produces |the |_______________, |to |which |the |signaling
molecule |binds.
A. |B, |A, |D, |C
B. |A, |B, |C, |D
C. |B, |C, |A, |D
D. |D, |C, |B, |A |- |correct |answersA. |B, |A, |D, |C
Which |of |the |following |types |of |cellular |activities |can |be |a |response |to |cell |signaling?
A. |Cell |division |is |triggered.
B. |Gene |expression |patterns |are |changed.
C. |Enzyme |activities |are |changed.
