BHU1994

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…

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:…

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…

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…

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…

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…

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)…

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)…

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…

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…