1149 + Interview Questions in TRANSPORT-IN-PLANTS IN GENERAL AWARENESS Page 2 InterviewSolution

51.	Transpiration is high underA. Rainy season/high humidityB. WinterC. High temperatureD. Low wind velocity
Answer» Correct Answer - C

Discussion

52.	In which form the food is translocated from endosperm to plumule of a fatty seed like castor.A. Fatty acidsB. FatC. GlucoseD. Sucrose
Answer» Correct Answer - d

Discussion

53.	Transpiration is high underA. Dry environmentB. Low atmospheric pressureC. High temperatureD. All the above
Answer» Correct Answer - D

Discussion

54.	In rooted plants , transport in __________ essentially unidirectional from roots to stem .
Answer» Correct Answer - Xylem

Discussion

55.	The stomatal are celled sunken whenA. Guard cells are in the line with epidermal cellsB. Guard cells are situated below epidermal cellsC. Guard cells are situated above epidermal cellsD. Guard cells occur in lower epidermal
Answer» Correct Answer - B

Discussion

56.	Stomatal frequency indicatesA. Number of stomata per unit areaB. Rate of water lossC. Rate of gaseous exchangeD. Width of stomatel aperture.
Answer» Correct Answer - A

Discussion

57.	Most of the water lost by the plant through transpiration exist through the stomatal pores . Which of the following statements about transpiration and stomatal functioning is false ?A. Stomata normally open in response to a shift from dark to light conditionsB. When the turgor pressure of guard cells increases , the stomatal aperture opensC. With the shift from dark to light , the osmotic potential becomes less negative resulting in stomatal closureD. The turgor pressure of guard cells increases after the osmotic potential becomes more negative
Answer» Correct Answer - C

Discussion

58.	Name the experiment which was used to identify the tissues through which food is translocated .
Answer» Girdling experiment .

Discussion

59.	Sunken stomateA. Increase transpirationB. Decrease tranpirationC. Hinder transpirationD. Stop transpiration
Answer» Correct Answer - B

Discussion

60.	Given below some properties of transport mechanism. Which of these are true for the facilitated transport (i) Require ATP energy (ii) Highly selective (iii) Uphill transport (iv) Requires special membrane proteins (v) Transport saturatesA. (i),(ii),(iii) ,(iv)B. (ii),(iv),(v)C. (i),(iii),(v)D. (ii),(iii),(iv),(v)
Answer» Correct Answer - B

Discussion

61.	Sinks are related toA. transport of materialsB. stomataC. enzymesD. phytochrome
Answer» Correct Answer - A

Discussion

62.	Sinks are related toA. Transport of mineralsB. StomateC. EnzymesD. Phytochrome
Answer» Correct Answer - a

Discussion

63.	Which of the following equations is correct in respect of osmotic phenomenonA. DPD = OP-TPB. DPD = OP+TPC. `DPD = OP xx TP`D. DPD = OP/TP
Answer» Correct Answer - A

Discussion

64.	Hormones and amino acid are also translocated through ______
Answer» Correct Answer - Phloem

Discussion

65.	Plants with scotoactive stomate performA. C_(4) photosynthesisB. CAM photosynthesisC. C_(3) photosynthesisD. Anoxygenic photosynthesis.
Answer» Correct Answer - B

Discussion

66.	If `DPD` represents diffusion pressure deficit, `OP` is the osmotic pressure and `TP` is the turgor pressure then which of the following equations is coorect?A. `DPD=OP=TP`B. `DPD=OP+TP`C. `DPD=OP-TP`D. `DPD=OP`
Answer» Correct Answer - C The reduction in the diffusion pressure of water in a solution over its pure state is called diffusion pressure defict or DPD. Diffusion pressure deficit is also called suction pressure. Its value is equal ot the osmotic pressure or potential (OP) (positive value taken in bars or atm) of the solution in a cell or system minus the wall pressure (WP) (=turgor pressure , TP) which opposes the entry of water into it provided the external water is pure. DPD = OP - WP (= TP) Water is absorbed by a system having higher DPD from anthor system with lower DPD.

Discussion

67.	Scotoactive stomata are character of which plantsA. HeliophytesB. XerophytesC. CAM PlantsD. All of these
Answer» Correct Answer - C

Discussion

68.	The relationship `piv=nRT` is not obeyed byA. Concentrated solutionB. Dilute solutionC. Extremely dilute solutionD. All the above
Answer» Correct Answer - C

Discussion

69.	Consider the following statements with reference to facilitated transport A. Requires ATP energy B. Transport saturates C. Highly selective D. Requires special membrane properties E. Uphill transport of the above statements.A. A, B and C, are relevant but D and E are irrelevantB. B, C and E, are relevant but A and D are irreleventC. C,D and E are relevant but A and B are irrelevantD. A,D, and E are relevant but B and C are irrelevant
Answer» Correct Answer - d

Discussion

70.	The chief sinks for the minerals elements are the growing regions of the plant.
Answer» Correct Answer - True

Discussion

71.	Food , primarily _______ is transported by the vascular tissue pholem from source to sink.
Answer» Correct Answer - Sucrose

Discussion

72.	Which of the following equations is correct in respect of osmotic phenomenonA. DPD=OP-TPB. DPD=OP+TPC. `DPD=OPxxTP`D. `DPD=OPdivTP`
Answer» Correct Answer - C

Discussion

73.	Osmotic expansion of a cell kept in water is chiefly regulated byA. VacuolesB. PlastidsC. RibosomesD. Mitochondria
Answer» Correct Answer - A

Discussion

74.	Identify the correct relationship with reference to water potential of a plant cell.A. `psi_(w) = psi_(m) + psi_(s) + psi_(p)`B. `psi_(w) = psi_(m) + (psi_(s) - psi_(p))`C. `psi_(w) = psi_(m) - (psi_(s) + psi_(p))`D. `psi_(w) = psi_(m) - psi_(s) - psi_(p)d`
Answer» Correct Answer - A

Discussion

75.	Who explained the scotoactive opening of stomataA. NishidaB. PallsC. EhrlerD. None of the above
Answer» Correct Answer - A

Discussion

76.	Starch gets converted into glucose in guard cells, whenA. pH is lowB. pH is highC. at isoelectric pointD. temperature is high
Answer» Correct Answer - B

Discussion

77.	Unloading of mineral ions occurs at the fine veins ending through diffusion.
Answer» Correct Answer - True

Discussion

78.	Starch degradation activity of enzyme phosphorylase increases underA. High pHB. Low pHC. Neutral mediumD. Not connected with pH.
Answer» Correct Answer - A

Discussion

79.	Influx of `K^(+)` inos into guard cells and efflux of `H^(+)` ions from guard cells lead toA. ExosmosisB. PlasmolysisC. Closing of stomataD. Opening of stomata
Answer» Correct Answer - D Influx of `K^(+)` ions into guard cells and efflux of `H^(+)` inos from guard cells lead to opening of stomata.

Discussion

80.	Osmotic pressure of a solution isA. Greater than pure solventB. Less than pure solventC. Equal to pure solventD. Less than or greater than pure solvent
Answer» Correct Answer - A

Discussion

81.	For photoactive opening of stomata, the proton transport concept was given byA. LevittB. MilborrowC. ZieglerD. None of the above
Answer» Correct Answer - A

Discussion

82.	Theory of starch-glucose interconversion was proposed by Enzyme phosphorylase is first of all discovered in guard cells byA. Yin and TungB. ZelitchC. ImamuraD. None of the above
Answer» Correct Answer - A

Discussion

83.	Unloading of mineral inos ouccurs at the fine vein endings throughA. DiffusionB. Active uptakeC. Both A and BD. Imbibition
Answer» Correct Answer - C Unloading of mineral ions occurs at the fine vein endings through diffusion and active uptake

Discussion

84.	Which of the following would be in insignificant amount in xylem sapA. WaterB. NitrateC. PhosphateD. Suger
Answer» Correct Answer - D

Discussion

85.	Water potential increases due toA. EvaporationB. Addition of solutionC. PressureD. Afforestation
Answer» Correct Answer - C

Discussion

86.	Which pathway involves cell wall and intercellular spaces?A. Vascular pathwayB. Protoplast pathwayC. Symplast pathwayD. Apoplast pathway
Answer» Correct Answer - D

Discussion

87.	Which of the following criteria does not pertain to facillatated transportA. Uphill transportB. Requirement of special membrane proteinsC. High selectivityD. Transport saturation
Answer» Correct Answer - a

Discussion

88.	Which one gives the most valid and recent explanation for stomatal movement?A. Guard cell photosynthesisB. TranspirationC. Potassium influx and effluxD. Starch hydrolysis
Answer» Correct Answer - C

Discussion

89.	Which of the following criteria does not pertain to facillatated transportA. High selectivelyB. Transport saturationC. Uphill transportD. Requirement of special membrane proteins.
Answer» Correct Answer - C

Discussion

90.	Which of the following statement are true/false ?A. a and b are true and c , d and e are falseB. a and c are true and b,d and e are falseC. a a dn d are true and b,c and e are falseD. c,d and e true and a and b are false
Answer» Correct Answer - a

Discussion

91.	Passive absorption of water by the root system of the result ofA. Force created in the cells of the rootB. increases respiratory activity in root cellsC. tension on the cell sap due ot transpirationD. osomotic force in the shoot system
Answer» Correct Answer - c

Discussion

92.	Identify the correct relationship with refernce to water potential of a plant cellA. `Psi_(w)=Psi_(m)+Psi_(s)+Psi_(p)`B. `Psi_(w)=Psi_(m)+(Psi_(s)-Psi_(p))`C. `Psi_(w)=Psi_(m)-(Psi_(s)+Psi_(p))`D. `Psi_(w)=Psi_(m)-Psi_(s)-Psi_(p)`
Answer» Correct Answer - a

Discussion

93.	Strasburger rejected the vital force theory on the ground thatA. Living cells are incapable of translocationB. Water rises in dead cellsC. Respiration occurs in living cellsD. Living cells are capable of growth
Answer» Correct Answer - B

Discussion

94.	Boucherie (1940), rejected to vital force theory on the basis that theA. living cells are capable of growthB. living cells are capable for ascent of sapC. dead cells are capable for ascent of sapD. dead cells are incapable for ascent of sap
Answer» Correct Answer - C

Discussion

95.	The drawback of atmospheric theory of ascent of sap isA. it is not applicable to small vascular plantsB. atmospheric pressure does not affect pull of waterC. it does not account for water column during nightD. it can not raise water beyond 32 feets
Answer» Correct Answer - D

Discussion

96.	The following evidences rejected the atmospheric pressure theory. Which of them is incorrectA. It can raise water to height of 32 feet only if complete vacuum is createdB. Free surface of water is required for proper operation of atmospheric pressure which is readily available in plantsC. Pressure falls below that of atomspheric pressure because of transpirationD. Water rises repidly to compensate the water loss because of atmopheric pressure.
Answer» Correct Answer - B

Discussion

97.	The girdling or ringing experiment is thatA. The metallic ring is tightly tied to a stemB. The ring of tissue external to xylem is removed in a stemC. The area is simply marked in the form of ring in a stemD. None of the above
Answer» Correct Answer - B

Discussion

98.	Assertion : Xylem is principal water conducting tissue. Reason : It has been recognised by girdling or ringing experimentA. Both the Assertion and Reason are true and Reason is the correct explanation of the Assertion.B. Both Assertion and Reason are true, but Reason is not the correct explanation of assertionC. Assertion is true, but Reason is falseD. Assertion is false, but Reason is true
Answer» Correct Answer - A Hartig performed ringing experiment to show path of water throught xylem. Xylem is a basic tissuefor the conduction of water in higher plants. It has vessels and tracheids, which are well adapted for water translocation.

Discussion

99.	Assertion : Xylem is principal water conducting tissue. Reason : It has been recognised by girdling or ringing experiment
Answer» Correct Answer - a

Discussion

100.	Assertion : Water and mineral uptake by root hairs from the soil occurs through apoplast until it reaches edodermis. Reason : Mature sieve tubes have parietal cytoplasm and perforated sieve plates.
Answer» Correct Answer - a

Discussion

Explore topic-wise InterviewSolutions in .

Transpiration is high underA. Rainy season/high humidityB. WinterC. High temperatureD. Low wind velocity

In which form the food is translocated from endosperm to plumule of a fatty seed like castor.A. Fatty acidsB. FatC. GlucoseD. Sucrose

Transpiration is high underA. Dry environmentB. Low atmospheric pressureC. High temperatureD. All the above

In rooted plants , transport in __________ essentially unidirectional from roots to stem .

The stomatal are celled sunken whenA. Guard cells are in the line with epidermal cellsB. Guard cells are situated below epidermal cellsC. Guard cells are situated above epidermal cellsD. Guard cells occur in lower epidermal

Stomatal frequency indicatesA. Number of stomata per unit areaB. Rate of water lossC. Rate of gaseous exchangeD. Width of stomatel aperture.

Name the experiment which was used to identify the tissues through which food is translocated .

Sunken stomateA. Increase transpirationB. Decrease tranpirationC. Hinder transpirationD. Stop transpiration

Sinks are related toA. transport of materialsB. stomataC. enzymesD. phytochrome

Sinks are related toA. Transport of mineralsB. StomateC. EnzymesD. Phytochrome

Which of the following equations is correct in respect of osmotic phenomenonA. DPD = OP-TPB. DPD = OP+TPC. `DPD = OP xx TP`D. DPD = OP/TP

Hormones and amino acid are also translocated through ______

Plants with scotoactive stomate performA. C_(4) photosynthesisB. CAM photosynthesisC. C_(3) photosynthesisD. Anoxygenic photosynthesis.

If `DPD` represents diffusion pressure deficit, `OP` is the osmotic pressure and `TP` is the turgor pressure then which of the following equations is coorect?A. `DPD=OP=TP`B. `DPD=OP+TP`C. `DPD=OP-TP`D. `DPD=OP`

Scotoactive stomata are character of which plantsA. HeliophytesB. XerophytesC. CAM PlantsD. All of these

The relationship `piv=nRT` is not obeyed byA. Concentrated solutionB. Dilute solutionC. Extremely dilute solutionD. All the above

The chief sinks for the minerals elements are the growing regions of the plant.

Food , primarily _______ is transported by the vascular tissue pholem from source to sink.

Which of the following equations is correct in respect of osmotic phenomenonA. DPD=OP-TPB. DPD=OP+TPC. `DPD=OPxxTP`D. `DPD=OPdivTP`

Osmotic expansion of a cell kept in water is chiefly regulated byA. VacuolesB. PlastidsC. RibosomesD. Mitochondria

Identify the correct relationship with reference to water potential of a plant cell.A. `psi_(w) = psi_(m) + psi_(s) + psi_(p)`B. `psi_(w) = psi_(m) + (psi_(s) - psi_(p))`C. `psi_(w) = psi_(m) - (psi_(s) + psi_(p))`D. `psi_(w) = psi_(m) - psi_(s) - psi_(p)d`

Who explained the scotoactive opening of stomataA. NishidaB. PallsC. EhrlerD. None of the above

Starch gets converted into glucose in guard cells, whenA. pH is lowB. pH is highC. at isoelectric pointD. temperature is high

Unloading of mineral ions occurs at the fine veins ending through diffusion.

Starch degradation activity of enzyme phosphorylase increases underA. High pHB. Low pHC. Neutral mediumD. Not connected with pH.

Influx of `K^(+)` inos into guard cells and efflux of `H^(+)` ions from guard cells lead toA. ExosmosisB. PlasmolysisC. Closing of stomataD. Opening of stomata

Osmotic pressure of a solution isA. Greater than pure solventB. Less than pure solventC. Equal to pure solventD. Less than or greater than pure solvent

For photoactive opening of stomata, the proton transport concept was given byA. LevittB. MilborrowC. ZieglerD. None of the above

Theory of starch-glucose interconversion was proposed by Enzyme phosphorylase is first of all discovered in guard cells byA. Yin and TungB. ZelitchC. ImamuraD. None of the above

Unloading of mineral inos ouccurs at the fine vein endings throughA. DiffusionB. Active uptakeC. Both A and BD. Imbibition

Which of the following would be in insignificant amount in xylem sapA. WaterB. NitrateC. PhosphateD. Suger

Water potential increases due toA. EvaporationB. Addition of solutionC. PressureD. Afforestation

Which pathway involves cell wall and intercellular spaces?A. Vascular pathwayB. Protoplast pathwayC. Symplast pathwayD. Apoplast pathway

Which of the following criteria does not pertain to facillatated transportA. Uphill transportB. Requirement of special membrane proteinsC. High selectivityD. Transport saturation

Which one gives the most valid and recent explanation for stomatal movement?A. Guard cell photosynthesisB. TranspirationC. Potassium influx and effluxD. Starch hydrolysis

Which of the following criteria does not pertain to facillatated transportA. High selectivelyB. Transport saturationC. Uphill transportD. Requirement of special membrane proteins.

Which of the following statement are true/false ?A. a and b are true and c , d and e are falseB. a and c are true and b,d and e are falseC. a a dn d are true and b,c and e are falseD. c,d and e true and a and b are false

Passive absorption of water by the root system of the result ofA. Force created in the cells of the rootB. increases respiratory activity in root cellsC. tension on the cell sap due ot transpirationD. osomotic force in the shoot system

Identify the correct relationship with refernce to water potential of a plant cellA. `Psi_(w)=Psi_(m)+Psi_(s)+Psi_(p)`B. `Psi_(w)=Psi_(m)+(Psi_(s)-Psi_(p))`C. `Psi_(w)=Psi_(m)-(Psi_(s)+Psi_(p))`D. `Psi_(w)=Psi_(m)-Psi_(s)-Psi_(p)`

Strasburger rejected the vital force theory on the ground thatA. Living cells are incapable of translocationB. Water rises in dead cellsC. Respiration occurs in living cellsD. Living cells are capable of growth

Boucherie (1940), rejected to vital force theory on the basis that theA. living cells are capable of growthB. living cells are capable for ascent of sapC. dead cells are capable for ascent of sapD. dead cells are incapable for ascent of sap

The drawback of atmospheric theory of ascent of sap isA. it is not applicable to small vascular plantsB. atmospheric pressure does not affect pull of waterC. it does not account for water column during nightD. it can not raise water beyond 32 feets

The girdling or ringing experiment is thatA. The metallic ring is tightly tied to a stemB. The ring of tissue external to xylem is removed in a stemC. The area is simply marked in the form of ring in a stemD. None of the above

Assertion : Xylem is principal water conducting tissue. Reason : It has been recognised by girdling or ringing experiment

Assertion : Water and mineral uptake by root hairs from the soil occurs through apoplast until it reaches edodermis. Reason : Mature sieve tubes have parietal cytoplasm and perforated sieve plates.