Bio 1108 Exam 2 Newest 2025/2026 Complete
Questions And 100% Correct Answers with rationales
|latest update!!
New cells produced by lateral meristems grow in diameter
and length. - ANSWER-Which of the following statements
does not describe a function of the lateral meristem?
root cap - ANSWER-Which portion of the root allows it to
sense water levels?
apical dominance - ANSWER-The condition in which shoot
apical meristems suppress the growth of axillary buds is
called ____________.
,lenticels - ANSWER-___________ allow oxygen to diffuse
through the outer bark of woody plants to supply the
respiratory needs of the underlying cells.
they allowed vascular plants to expand into drier habitats.
- ANSWER-The evolution of roots was an adaptive trait in
early land plants because:
Chemical signals from developing leaf primordia create
regions preventing new primordial growth. - ANSWER-
Which of the following statements describes the
hypothesis proposed to explain the regular arrangement of
leaves around the stem?
,auxin concentration and the movement of starch-filled
organelles called statoliths. - ANSWER-Gravitropism is a
result of:
meristem identity genes - ANSWER-Cells at shoot tips
maintain their totipotency due to the expression of:
what is tropism? - ANSWER-bending or turning of an
organism in response to an external signal
what does a phytochrome allow? - ANSWER-dormant
seeds to detect presence of plants overhead
what is absicic acid - ANSWER-stimulates root elongation
and triggers stomata to close reducing demand for water
, what is photoperiodism? - ANSWER-describe effect of day
length on flowering
what are short day plants? - ANSWER-flower when day
length is less than critical value
what are long day plants? - ANSWER-flower only when
light period exceeds a certain length
what are day neutral plants? - ANSWER-independent of
any change in day length
Questions And 100% Correct Answers with rationales
|latest update!!
New cells produced by lateral meristems grow in diameter
and length. - ANSWER-Which of the following statements
does not describe a function of the lateral meristem?
root cap - ANSWER-Which portion of the root allows it to
sense water levels?
apical dominance - ANSWER-The condition in which shoot
apical meristems suppress the growth of axillary buds is
called ____________.
,lenticels - ANSWER-___________ allow oxygen to diffuse
through the outer bark of woody plants to supply the
respiratory needs of the underlying cells.
they allowed vascular plants to expand into drier habitats.
- ANSWER-The evolution of roots was an adaptive trait in
early land plants because:
Chemical signals from developing leaf primordia create
regions preventing new primordial growth. - ANSWER-
Which of the following statements describes the
hypothesis proposed to explain the regular arrangement of
leaves around the stem?
,auxin concentration and the movement of starch-filled
organelles called statoliths. - ANSWER-Gravitropism is a
result of:
meristem identity genes - ANSWER-Cells at shoot tips
maintain their totipotency due to the expression of:
what is tropism? - ANSWER-bending or turning of an
organism in response to an external signal
what does a phytochrome allow? - ANSWER-dormant
seeds to detect presence of plants overhead
what is absicic acid - ANSWER-stimulates root elongation
and triggers stomata to close reducing demand for water
, what is photoperiodism? - ANSWER-describe effect of day
length on flowering
what are short day plants? - ANSWER-flower when day
length is less than critical value
what are long day plants? - ANSWER-flower only when
light period exceeds a certain length
what are day neutral plants? - ANSWER-independent of
any change in day length
