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Zorluk: OrtaGrowth, Development, and Metamorphosis

Match each plant growth feature or developmental phenomenon on the left with its correct biological description on the right.

  • Apical meristemTissue responsible for primary growth and extension in length at root and shoot tips
  • Hypogeal germinationGermination type where cotyledons remain below the soil surface due to epicotyl elongation
  • EcdysisPeriodic shedding of the chitinous exoskeleton to enable increase in body size
  • Sigmoid growth curveGrowth pattern comprising lag, exponential, decelerating, and stationary phases

Cevap

Apical meristem matches with tissue responsible for primary growth at root and shoot tips; Hypogeal germination matches with germination where cotyledons remain below soil level; Ecdysis matches with periodic shedding of exoskeleton; Sigmoid growth curve matches with S-shaped growth pattern consisting of lag, exponential, decelerating, and stationary phases.
Each developmental term correctly pairs with its unique physiological mechanism: apical meristems facilitate primary terminal elongation, hypogeal germination maintains cotyledons sub-surface, ecdysis allows arthropod growth by molting the exoskeleton, and the sigmoid curve represents the standard four-stage growth kinetic trajectory.

Adım Adım Çözüm

1
Identify the primary function of apical meristems
Apical meristems cause primary lengthening at root and shoot apexes.
Terminal growing points produce cells via mitosis for vertical plant growth.
2
Distinguish hypogeal from epigeal germination
Hypogeal germination keeps cotyledons beneath the soil surface.
Rapid growth of the epicotyl lifts the plumule while cotyledons remain buried.
3
Analyze the process of ecdysis in arthropod development
Ecdysis involves shedding the rigid exoskeleton.
Arthropod cuticles are non-living and unyielding, requiring periodic replacement to accommodate tissue growth.
4
Characterize the phases of a standard sigmoid curve
A sigmoid curve features lag, log/exponential, deceleration, and stationary phases.
It models overall developmental rate in finite environment conditions.

Anahtar Kavram

Plant meristems, germination modes, ecdysis, and growth curve kinetics
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