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Exam (elaborations)

USABO PLANT FORM AND FUNCTION QUESTIONS AND ANSWERS

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USABO PLANT FORM AND FUNCTION QUESTIONS AND ANSWERS

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  • September 21, 2024
  • 72
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • USABO
  • USABO
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81 Multiple choice questions

Definition 1 of 81
a vascular plant organ consisting of an alternating system of nodes and internodes that
support the leaves and reproductive structures

petiole


bark

stem

tuber

Definition 2 of 81
a root that grows from an unexpected region of the plant, such as from a stem or leaf;
characteristic of a fibrous root system

lateral root


adventitious root

taproot

buttress root

Definition 3 of 81
an enlarged end of a rhizome or stolon that is specialized for storing food

stem


stolon

tuber


vascular cambium

,Definition 4 of 81
a component of water potential that is inversely proportional to the molarity of the solution

gravity potential


water potential

solute potential


apical dominance

Definition 5 of 81
ground tissue internal to the vascular tissue

pith

axillary bud

cortex


vascular cambium

Definition 6 of 81
the tendency for primary plant growth to be concentrated at the tip of the shoot, a property
stemming from the inhibitory activity of the apical bud on axillary bud growth

phyllotaxy


apical dominance

primary growth

vascular bundle

Definition 7 of 81
a major vein characteristic of eudicots that runs down the center of the blade of a leaf

midrib

periderm

petiole

node

,Definition 8 of 81
flowers when night exceeds a critical dark period; a flash of light interrupting the dark period
prevents flowering

long-night plant


day-neutral plant

cork cambium

short-day plant

Definition 9 of 81
stimulates seed germination and lateral branching and inhibits vertical growth

Pfr

Stele

Psr


Lenticel

Definition 10 of 81
the potential energy of water per unit volume relative to pure water in reference conditions;
predicts the direction in which water will flow

primary growth

root cap

water potential

root pressure

, Definition 11 of 81
a root that develops from the pericycle of an established root

taproot


lateral root

primary root

adventitious root

Definition 12 of 81
a sugar or other product of photosynthesis

photosynthate

chloroplast

xylem

carbohydrate

Definition 13 of 81
a blue-light sensitive flavoprotein responsible for the light-induced inhibition of stem
elongation in seedlings

internode

phototropin


cryptochrome

cytokinin

Definition 14 of 81
in plants, the continuum of cytoplasm connected by plasmodesmata between cells.

bark


symplast

endodermis

apoplast

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