CHILD DEVELOPMENT PEDAGOGY

GROWTH DEVELOPMENT CHILD

GROWTH AND DEVELOPMENT

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Function of Auxin, except
A
promote seed germination
B
Stimulate differentiation of xylem and phloem
C
stimulate cell elongation
D
delaying leaf senescence
Explanation: 

Detailed explanation-1: -Answer: Auxin promotes cell growth and elongation of the plant. In the elongation process, auxin alters the plant wall plasticity making it easier for the plant to grow upwards. Auxin also influences rooting formations.

Detailed explanation-2: -Auxin promotes dormancy and inhibits germination by enhancing ABA action, thereby adding another protective level of control in the regulation of seed dormancy.

Detailed explanation-3: -Auxins also play a role in cell division and differentiation, in fruit development, in the formation of roots from cuttings, in the inhibition of lateral branching (apical dominance), and in leaf fall (abscission).

Detailed explanation-4: -Auxin is the plant hormone concerned with apical dominance, phototropism and growth. Whereas photosynthesis is a light dependent anabolic process which is never dependent on auxin hormone.

Detailed explanation-5: -Among the different plant hormones, abscisic acid (ABA) and gibberellin (GA) are considered as major players in the regulation of dormancy and germination; ABA regulates dormancy induction and maintenance positively while GA promotes seed germination (Kucera et al., 2005; Finkelstein et al., 2008).

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