Smartindia Classroom
CONTENTS
English
Physics
Chemistry
Biology
Mathematics
Back to home
Start Practice
Question-1
Phytohormones are
(A)
chemicals regulating flowering
(B)
chemicals regulating secondary growth
(C)
hormones regulating growth from seed is adulthood
(D)
regulators synthesized by plants and influencing physiological processes
Question-2
Phytochrome is involved in
(A)
Phototropism
(B)
Photorespiration
(C)
Photoperiodism
(D)
Geotropism
Question-3
Which one is a long-day plant?
(A)
Tobacco
(B)
Glycine max
(C)
Mirabilis jalapa
(D)
Spinach
Question-4
Which is employed for artificial ripening of banana fruits?
(A)
Auxin
(B)
Cumarin
(C)
Ethylene
(D)
Cytokinin
Question-5
"Foolish seedling" disease of rice led to the discovery of
(A)
GA
(B)
ABA
(C)
2, 4D
(D)
IAA
Question-6
Geocarpic fruits are produced by
(A)
onion
(B)
watermelon
(C)
ground nut
(D)
carrot
Question-7
Hormone primarily connected with cell division
(A)
IAA
(B)
NAA
(C)
cytokinin/zeatin
(D)
gibberellic acid
Question-8
Dwarfness can be controlled by treating the plant with
(A)
cytokinin
(B)
gibberellic acid
(C)
auxin
(D)
antigibberellin
Question-9
Plants deficient of element zinc, show its effect on the biosynthesis of plant growth hormone
(A)
abscisic acid
(B)
auxin
(C)
cytokinin
(D)
ethylene
Question-10
Abscisic acid controls
(A)
cell division
(B)
leaf fall and dormancy
(C)
shoot elongation
(D)
cell elongation and wall formation
Your Score 0/10
Click
here
to see your answersheet and detailed track records.
Plus 2 Biology Science
ICSE/ISC
Practice in Related Chapters
Cell Reproduction
DNA as a Genetic Material
Biomolecules of the Cell
Wild Life
Economic Zoology
Conservation of Natural Resources
Animal Reproduction and Development
Applications of Botany
Animal Tissues
Hormonal Coordination
Excretion and Osmoregulation
Genetics
Nervous Coordination
Morphology and Anatomy of Flowering plants
Orgin of Life Evolution and its maintenance
Circulation of Body Fluids
Water Relations
Plant Growth and Movements
Gas Exchange and Transport
Plant Growth,Growth Regulators,Photo - Morphogenesis and Plant Movements
Absorption and Movement of water in Plants
Nervous System
Cell Structure and and Function
Metabolism
Human Nutrition
Reproduction and Development in Angiosperms
Plant Nutrition
Human Respiration
Circulation in Humans
Applications of Biology
Breathing and Exchange of Gases
Powered By
