31.

Which one of the following does'nt help in molecule transport?

• Diffusion

• Osmosis

• Surface tension

• Active transport

Stomatal opening in plants occurs due to influx of

• Na

• K

• ABA

• Auxins

Energy transfer in photosynthesis occurs as

• Phycoerythrin $\to$Phycocyanin $\to$Carotenoid $\to$Chlorophyll a

• Chlorophyll b $\to$Carotenoid $\to$Phycoerythrin $\to$Chlorophyll a

• Phycocyanin $\to$Phycoerythrin $\to$Carotenoid $\to$Chlorophyll a

• Chlorophyll b $\to$Carotenoid $\to$Phycocyanin $\to$Chlorophyll a

Litmus is obtained from

• Rocella montagnei

• Lasallia postulata

• Both (a) and (b)

• Cladonia crispata

Commercial cork is obtained from

• Flax

• Juglans regia

• Hevea brassiliansis

• Quercus suber

Tea and coffee are affected by

• Phytophthora

• Cephaleuros

• Herviella

• Albugo candida

In photosynthesis what occurs in PS-II?

• It takes longer wavelength of light and e^- from H₂O

• It takes shorter wavelength of light and e^- from H₂O

• It takes longer wavelength of light and e^- from NADP

• It takes shorter wavelength of light and e^- from NADP

Which are sensitive to SO₂ pollution?

• Mosses

• Algae

• Lichen

• Ferns

Though Cycas has 2 cotyledons, this is not included in dicot because

• naked ovule

• they have megaspore

• appears as palm tree

• has compound leaves

In meiosis division is

• Ist reductional and IInd equational

• Ist equational and IInd reductional

• both reductional

• both equational