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Biology

PLANT PHYSIOLOGY : TRANSPORT IN PLANTS TEST - 04

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Water vapour comes out from the plant leaf through the stomatal opening. Through the same stomatal opening carbon dioxide diffuses into the plant during photosynthesis. Reason out the above statements using one of following option :-
पादप पत्ती से जल वाष्प रन्ध्रों के द्वारा बाहर आता है। प्रकाशसंश्लेषण के दौरान उसी रन्ध्र से कार्बन डाइऑक्साइड पादप में विसरित होती है। उपर्युक्त कथनों में (कारणों पर विचार कर) एक विकल्प चुनिए :

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Guttation is the result of :
बिन्दुस्त्राव किसका परिणाम होता है ?

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Due to more wind velocity, the transpiration rate will be:-
वायु का वेग बढ़ने के साथ-साथ वाष्पोत्सर्जन की दर:

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Foliar transpiration :-
पर्णिल वाष्पोत्सर्जन होता है :

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The hydathodes are related with :-
जल रन्ध्र या हाइडेथोड का सम्बन्ध किससे है :

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Guttation take place during night when :-
बिन्दू स्त्रवण रात में होता है जब :

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A column of water within xylem vessels of tall trees does not break under its weight because of :
एक लम्बे वृक्ष की दारू वाहिकाओं में जल का स्तम्भ अपने भार से नहीं टूटता। इसका कारण है:

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A few drops of sap were collected by cutting across a plant stem by a suitable method. The sap was tested chemically. Which one of the following test results indicates that it is phloem sap ?
एक उपयुक्त विधि द्वारा एक पादप के तने को आरपार काटकर की कुछ बूँदें एकत्रित की गय रस का रासायनिक परीक्षण किया गया। निम्नलिखित में से कौनसा परीक्षण परिणाम यह दर्शायेगा कि यह फ्लोएम रस हैं ?

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If temperature remains constant then with increasing alttitude, the transpiration will :-
यदि तापक्रम वही रहे तो समुद्र तल से ऊँचाई बढ़ने के साथ-साथ वाष्पोत्सर्जन :

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Due to increasing temperature, transpiration :-
तापक्रम बढ़ने पर, वाष्पोत्सर्जन:

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Guard cells differ from other epidermal cells in having :-
रक्षक कोशिकाऐं किसकी उपस्थिति के कारण अन्य अधिचर्मी कोशिकाओं से भिन्न होती है:

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Hydathodes open during :-
जल रन्ध्र खुलते हैं :

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Water of guttation is :–
बिंदुस्त्राव का पानी होता है :

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The osmotic expansion of a cell kept in water is chiefly regulated by :
जल में रखी एक कोशिका का परासरणीय फैलाव मुख्यतः किसके द्वारा नियन्त्रित होता है ?

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The process by which toddy is obtained :-
किस प्रक्रिया द्वारा ताड़ी प्राप्त की जाती है।

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Root pressure develops due to :
मूलदाब किसकी वजह से विकसित होता है ?

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Specialised epidermal cells surrounding the guard cells are called :-
द्वार कोशिकाओं के घेरने वाली विशिष्टीकृत बाह्यत्वचीय कोशिकाओं को क्या कहा जाता हैं :

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Cells present below hydathodes are –
जल रन्ध्रों के नीचे उपस्थित कोशिकायें है

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Which of the following facilitates opening of stomatal aperture ?
रंध्र छिद्र के खुलने में निम्नलिखित में से क्या सहायता करती है?

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Potometer works on the principle of :
पोटोमीटर किस सिद्धान्त पर कार्य करता है।

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In a ring girdled plant:
एक वलय बंधित पादप में:

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Root pressure can be measured by the instrument
मूलदाब को किस यन्त्र के द्वारा मापा जाता है :

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Two cells A and B are contiguous. Cell A has osmotic pressure 10 atm, turgor pressure 7 atm and diffusion pressure deficit 3 atm. Cell B has osmotic pressure 8 atm, turgor pressure 3 atm and diffusion pressure deficit 5 atm. The result will be :-
दो संलग्न कोशिकाएं A और B हैं। A का परासरण दाब 10atm, स्फीति दाब 7 atm और विसरण दाब B का परासरण दाब 8 atm, स्फीति न्यूनता 3 atm है। दाब 3 atm और विसरण 5 atm है। परिणाम होगा ?

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Function of companion cells is :
सहकोशिकाओं का क्या कार्य होता है ?

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In land plants, the guard cells differ from other epidermal cells in having :-
थलीय पौधों में, द्वार-कोशिकाएँ अन्य उपचर्म कोशिकाओं से किसके मौजूद होने में भिन्न होती है :

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When stem of a herbaceous plant is cut, water or sap oozes out, this is due to ?
जब एक शाकीय तने को काटा जाता है तो उसके कटे हुये भाग से रस या जल का निकलना किसके कारण होता है:

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Root pressure is maximum, when :-
मूल दाब उच्चतम होता है, जबकि:

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The translocation of organic solutes in sieve tube members is supported by
चालनी नलिका सदस्यों के द्वारा कार्बनिक विलेयी के स्थानान्तरण में क्या सहायक होता / होते हैं?

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Transpiration increases when atmospheric temperature rises, due to:-
वायुमंडलीय तापक्रम बढने पर वाष्पोत्सर्जन अधिक होने का कारण है:

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The water potential of pure water is :
शुद्ध जल का जल विभव कितना होता है ?

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The average score is 42%

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