Plant Growth and Development Final Exam
What are the three primary stages of embryogenesis? - correct answersGlobular, Heart, Torpedo
Radicle emergence involves cell growth and rupture of the tissues surrounding the embryo, but typically
does not involve ___________. - correct answerscellular division
The corpus of the apical meristem is divided into three zones. What are they? - correct answerscentral
zone, peripheral zone, and rib meristem
Biennial Growth - correct answersThe plant grows vegetatively the first year, initiates flowers the second
year before flowering, setting seed, and dying the second year.
Determinate growth - correct answersWhen a shoot reaches a predetermined size the plant ceases to
get larger.
Annual growth - correct answersThe plants grow and reach maturity producing flowers and seeds in one
growing season.
perennial growth - correct answersThe cycle of growth and flowering is repeated year after year with
the plant surviving the winter by storage organs or with perenating buds.
Indeterminate growth - correct answersThere is no set endpoint for plant size.
Leaves or leaf primordia are important to stem elongation because they are an important source of
____________________. - correct answersauxins
Growth in plants that exhibit a continuous growth pattern is typically regulated by _________ and
__________. - correct answersseason; temperature
, The two most important environmental factors regulating bud dormancy are - correct
answerstemperature and light
Juvenility can be defined as - correct answersThe initial period of plant growth when apical meristems
will not respond to internal or external cues to initiate flowering.
The rise in mitotic activity precedes the increase DNA synthesis in the central zone during transition to a
reproductive meristem because ______ - correct answersthere are a number of cells in the cell cycle just
following DNA synthesis waiting to divide.
Phytochrome Far Red - correct answersinhibits stem elongation
Phytochrome Far Red to Phytochrome Red - correct answers
Phytochrome Red - correct answerspromotes stem elongation
Phytochrome Red to Phytochrome Far Red - correct answers
Fruit are the structural entities resulting from the development of tissues supporting the
_______________. - correct answers
Plants detect their proximity to neighboring plants by measuring ... - correct answers
Hydrotropism - correct answerswater
Gravitropism - correct answersgravity
Phototropism - correct answerslight
Thigmotropism - correct answerstouch
What are the three primary stages of embryogenesis? - correct answersGlobular, Heart, Torpedo
Radicle emergence involves cell growth and rupture of the tissues surrounding the embryo, but typically
does not involve ___________. - correct answerscellular division
The corpus of the apical meristem is divided into three zones. What are they? - correct answerscentral
zone, peripheral zone, and rib meristem
Biennial Growth - correct answersThe plant grows vegetatively the first year, initiates flowers the second
year before flowering, setting seed, and dying the second year.
Determinate growth - correct answersWhen a shoot reaches a predetermined size the plant ceases to
get larger.
Annual growth - correct answersThe plants grow and reach maturity producing flowers and seeds in one
growing season.
perennial growth - correct answersThe cycle of growth and flowering is repeated year after year with
the plant surviving the winter by storage organs or with perenating buds.
Indeterminate growth - correct answersThere is no set endpoint for plant size.
Leaves or leaf primordia are important to stem elongation because they are an important source of
____________________. - correct answersauxins
Growth in plants that exhibit a continuous growth pattern is typically regulated by _________ and
__________. - correct answersseason; temperature
, The two most important environmental factors regulating bud dormancy are - correct
answerstemperature and light
Juvenility can be defined as - correct answersThe initial period of plant growth when apical meristems
will not respond to internal or external cues to initiate flowering.
The rise in mitotic activity precedes the increase DNA synthesis in the central zone during transition to a
reproductive meristem because ______ - correct answersthere are a number of cells in the cell cycle just
following DNA synthesis waiting to divide.
Phytochrome Far Red - correct answersinhibits stem elongation
Phytochrome Far Red to Phytochrome Red - correct answers
Phytochrome Red - correct answerspromotes stem elongation
Phytochrome Red to Phytochrome Far Red - correct answers
Fruit are the structural entities resulting from the development of tissues supporting the
_______________. - correct answers
Plants detect their proximity to neighboring plants by measuring ... - correct answers
Hydrotropism - correct answerswater
Gravitropism - correct answersgravity
Phototropism - correct answerslight
Thigmotropism - correct answerstouch
