Smartindia Classroom
CONTENTS
English
Physics
Chemistry
Biology
Mathematics
Back to home
Start Practice
Question-1
Gibberellins induce
(A)
flowering
(B)
production of hydrolyzing enzymes in germinating seeds
(C)
cell division
(D)
hasten leaf senescence
Question-2
Which is stress hormone or the hormone produced during adverse environmental condition?
(A)
benzyl aminopurine
(B)
dichlorophenoxy acetic acid
(C)
ethylene
(D)
abscisic acid
Question-3
What reason will you assign for coconut milk used in tissue culture?
(A)
Gibberellins
(B)
Cytokinins
(C)
Auxins
(D)
Ethylene
Question-4
Geocarpic fruits are produced by
(A)
onion
(B)
watermelon
(C)
ground nut
(D)
carrot
Question-5
The hormone responsible for apical dominance is
(A)
IAA
(B)
GA
(C)
ABA
(D)
florigen
Question-6
Which combination of gases is suitable for fruit ripening?
(A)
80% CO 2 and 20%CH2
(B)
80%CH4 and 20% C02
(C)
80%COz and 20% O2
(D)
80% C2H4 and 20% C02
Question-7
Leaf fall can be prevented with the help of
(A)
abscisic acid
(B)
auxins
(C)
florigen
(D)
cytokinins
Question-8
How does pruning help in making the hedge dense?
(A)
It frees axillary buds from apical dominance
(B)
The apical shoot grows faster after pruning
(C)
It releases wound hormones
(D)
It induces the differentiation of new shoots from the rootstock
Question-9
Hormone responsible for senescence is
(A)
ABA
(B)
auxin
(C)
GA
(D)
cytokinin
Question-10
Ethylene gas is used for
(A)
growth of plants
(B)
delaying fruit's abscission
(C)
ripening of fruits
(D)
stopping the leaf abscission
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