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Why Chl-a (Chlorophyll-a) is Called Essential Pigment?
Concept: Plant Mineral Nutrition
What is photorespiration?
Concept: Conditions Necessary for Plant Growth
Define chemoautotrophs.
Concept: Biogeochemical Cycles (Nutrient Cycles) >> Nitrogen Cycle
Give the applications of gibberellins.
Concept: Plant Hormones >> Gibberellins
The principle pathway of water translocation in angiosperms is ______
Concept: Plant Growth
Gibberellins are synthesised from ______.
Concept: Plant Hormones
First natural cytokinin was obtained from ______.
Concept: Plant Hormones
Name the phytohormone related with the given phenomenon.
- Apical dominance
- Bolting of Cabbage
- Artificial ripening of fruit
- Acts as Anti-transpirant by closing stomata
Concept: Plant Hormones
______ hormone is responsible for the efflux of K+ ions from guard cells and acts as an antitranspirant.
Concept: Plant Hormones >> Abscisic Acid (ABA)
Which is the primary precursor of IAA in plants?
Concept: Plant Hormones >> Auxins
Name the cell which is responsible for nitrogen fixation in cyanobacteria.
Concept: Biogeochemical Cycles (Nutrient Cycles) >> Nitrogen Cycle
Abscisic acid is the common name given to two identical substances isolated separately. Name them.
Concept: Plant Hormones >> Abscisic Acid (ABA)
Give the chemical features of abscisic acid.
Concept: Plant Hormones >> Abscisic Acid (ABA)
Which hormone is responsible for fruit ripening?
Concept: Plant Hormones >> Ethylene
Abscission means ______.
Concept: Plant Mineral Nutrition
Write two applications of Auxins.
Concept: Plant Hormones >> Auxins
What is nitrification?
Concept: Biogeochemical Cycles (Nutrient Cycles) >> Nitrogen Cycle
Name any two nitrifying bacteria in soil.
Concept: Biogeochemical Cycles (Nutrient Cycles) >> Nitrogen Cycle
What are long-day plants (LDP)? Give two examples.
Concept: Photoperiodism
Which of the following is the only gaseous plant growth regulator?
Concept: Plant Hormones >> Ethylene
