Biology - Mock Test 39

Question 381

The action spectrum of transpiration is__________

A) Blue & red B) Blue & far-red C) reen & red D) Green & far-red

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Question 382

Which one of the following is a correct statement

A) Minerals and water are absorbed simultaneously. B) Water is mainly absorbed against the concentration gradient. C) Absorption of water and minerals takes place independently. D) Mineral are absorbed along the ions

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Question 383

Rate of guttation decreases in_________

A) Well watered soil B) Soil with good aeration C) High DPD of atmospheric air D) High atmospheric pressure

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Question 384

Amount of water transpired per unit of dry matter produced during growing seasons of a plant is called________

A) Transpiration flux B) Transpiration index C) Stomatal index D) Transpiration ratio

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Question 385

Find the incorrect statement in relation to passive absorption of water___________

A) Roots are not essential B) Creates a negative pressure in xylem sap C) It is symplastic D) It is dependent on transpiration

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Question 386

Which of the following may be helpful in phenomenon of night recovery in plants

A) Capillary water B) Hygroscopic water C) Chemically combined water D) Water vapours

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Question 387

Which of the following is fully permeable, but does not show imbibition___________

A) Cellulosic cell wall B) Biological membrane C) Lignified cell wall D) Suberised cell wall

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Question 388

If a plant kept in light with a high internal CO2, content transferred to dark CO2, free environment then stomata will__________

A) First close and then open B) Remain closed C) Remain open D) Open first and then close

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Question 389

What is the person with these symptoms suffering from? Outbursts of emotions, unpredictable moods, quarrelsome behavior, conflicts with others

A) Mood disorders B) Addictive disorders C) Schizophrenia D) Borderline personality disorder ( BPD )

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Question 390

Which one of these processes is found in animals only

A) Nervous system B) Hormonal control C) Respiration D) Diffusion

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