Ethylene is a
Ethylene is a Options (a) Gaseous hormone (b) Gaseous enzyme (c) Liquid-gas mixture (d) Solid hormone Correct Answer: Gaseous hormoneExplanation:Ethylene…
4 years ago
BHU1994
Which plants exhibits Kranz anatomy
Which plants exhibits Kranz anatomy? Options (a) C₅ plants (b) C₃ plants (c) C₂ plants (d) C₄ plants Correct Answer:…
4 years ago
The plant hormone controlling fruit ripening is
The plant hormone controlling fruit ripening is Options (a) ethylene (b) kinetin (c) I.A.A. (d) GA Correct Answer: ethyleneExplanation:Ethylene (gaseous…
4 years ago
The organelles involved with photorespiration are
The organelles involved with photorespiration are Options (a) peroxisomes (b) ribosome (c) nucleus (d) plastids Correct Answer: peroxisomesExplanation:Photorespiration is the…
4 years ago
Ballon like outergrowth of parenchyma, into the lumen of vessels is known as
Ballon like outergrowth of parenchyma, into the lumen of vessels is known as Options (a) tunica (b) tyloses (c) phellogen…
4 years ago
Heat of formation of H₂O(g) at 25⁰C is -243 kJ,ΔE for the reaction
Heat of formation of H₂O(g) at 25⁰C is -243 kJ,ΔE for the reaction H₂(g) + 1/2 O₂(g) → H₂O(g) at…
4 years ago
For an endothermic reaction the value of ΔS is positive.The reaction is
For an endothermic reaction the value of ΔS is positive.The reaction is Options (a) feasible when ΔH > TΔS (b)…
4 years ago
Which of the following possible isomers of butanol has a chiral centre
Which of the following possible isomers of butanol has a chiral centre Options (a) CH₃CHOHCH₂CH₃ (b) (CH₃)₂CH.CH₂OH (c) (CH₃)₃C.OH (d)…
6 years ago
A liquid is in equilibrium with its vapour at its boiling point
A liquid is in equilibrium with its vapour at its boiling point.The molecules in the two phases have equal Options…
6 years ago
In flowering plants, a mature male gametophyte is derived from a pollen mother
In flowering plants, a mature male gametophyte is derived from a pollen mother cell by Options (a) two mitotic divisions…
6 years ago