Worksheets10A SCIENCE QUIZ
Total questions: 10
Worksheet time: 4mins
1) Giberellins cause
Shortening of genetically tall plants
Elongation of dwarf plants
Promotion of rooting
Yellowing of young leaves
2) The hormone which has positive effect on
apical dominance is:
Cytokinin
Auxin
Gibberellin
Ethylene
3) Which one of the following hormones is
naturally not found in plants:
2, 4-D
GA3
Gibberellin
IAA
4) Avena coleoptile test was conducted by
Darwin
N. Smit
Paal
F.W. Went
5) To increase the sugar production in
sugarcanes they are sprayed with _______
Auxin
Cytokinin
Gibberellins
Ethylene
6) _________ causes cell elongation, apical
dominance and prevents abscission.
Ethylene
Cytokinin
Auxin
Gibberellin
7) _________ is a gaseous hormone involved
in abscission of organs and acceleration of
fruit ripening.
Gibberellin
Auxin
Cytokinin
Ethylene
8) _________ causes stomatal closure.
Abscissic acid
Auxin
Gibberellin
Ethylene
9) Gibberellins induce stem elongation in
_________ plants.
Avena
Rosette
Corn
None
10) The hormone which has negative effect on
apical dominance is _________.
Ethylene
Auxin
Cytokinin
Gibberellin
