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1 / 30

The metal ion involved in the stomatal regulation is
पर्ण रन्ध्रों के नियमन में सम्मिलित धातु आयन है:

2 / 30

Which chemical is used to detect transpiration comparatively ?
किस रसायन की सहायता से वाष्पोत्सर्जन की तुलना की जाती है

3 / 30

The conduction of water from root hair to root xylem is :-
मूलरोम से जड़ के जाइलम तक जल का संवहन होता है:

4 / 30

Shape of guard cells in gramineae family :-
ग्रेमीनी कुल में पायी जाने वाली रक्षक कोशिकाओं का आकार होता है:

5 / 30

Which of the following side of wall of guard cells is thick ?
रक्षक कोशिकाओं की कौनसी भित्ति मोटी होती है। :

6 / 30

The change in turgor pressure which causes the opening and closing of Stomata is caused by :-
रन्ध्रों के खुलने तथा बन्द होने में द्वार कोशिकाओं के स्फीति दाब में परिवर्तन निम्न कारणों से होता है:

7 / 30

The continuity of water column in xylem is maintained due to :-
जाइलम में जल स्तम्भ की निरन्तरता बनी रहती है:

8 / 30

Which of the following substance serve as an anti-transpirant in plant ?
निम्न लिखित में से किसका उपयोग पादपों में वाष्पोत्सर्जनरोधी के रूप में किया जाता है :

9 / 30

Potometer is used to study :-
पोटोमीटर का उपयोग किस क्रिया के अध्ययन में किया जाता है:

10 / 30

Ringing experiment can not be done on a sugar cane plant because :-
मेखला प्रयोग गन्ने पर लागू नहीं होता क्योंकि गन्ने के पौधे में:

11 / 30

Dixon and Jolly are associated with :-
डिक्सन तथा जौली सम्बन्धित है :

12 / 30

Before opening of stomata accumulation of the following ion is seen in :-
रन्ध्र खुलने से पहले उसकी रक्षक कोशिकाओं में किस आयन का स्तर (संचय) बढ़ जाता है:

13 / 30

Which would do maximum harm to a tree ?
किनके हटा लेने से एक पेड़ को सबसे ज्यादा हानि होती है: (1) (3) (2) (4)

14 / 30

Opening of stomata is due to :-
पर्ण रन्ध्रों के खुलने का कारण है:

15 / 30

Conversion of starch to organic acid is essential for
शर्करा का कार्बनिक अम्ल में परिवर्तन किसके लिए आवश्यक है:

16 / 30

Leaves which appear wilted in the day time recover at night because :-
पत्तियां जो दिन के समय मुरझा जाती है रात्रि में वापस ठीक हो जाती है क्योंकि

17 / 30

Processes occur in leaves, which may lower their temperature is :-
पत्तियों में जो क्रियायें होती है उनमें से एक है जो उनके ताप को कम करती है:

18 / 30

In plants the translocation of organic solutes take place through :-
कार्बनिक पदार्थों का पौधों में स्थानान्तरण किस उत्तक द्वारा होता है:

19 / 30

Increase in CO2 concentration around leaf results in :-
पत्ती के चारो ओर CO2 की मात्रा बढ़ने पर निम्न प्रभाव क्ष होगा:

20 / 30

Removal of a ring of bark from the trunk of a tree eventually kills it because :-
तने पर मेखला निर्माण के उपरान्त पौधा अन्ततः मर क्यों जाता है:

21 / 30

The following percentage of water absorbed by herbaceous plants is lost in transpiration :-
शाकीय पौधों के द्वारा अवशोषित जल का निम्नलिखित प्रतिशत वाष्पोत्सर्जित हो जाता है:

22 / 30

Ascent of sap in woody stem occurs mainly due to:-
काष्ठीय तनों में रसारोहण मुख्यतः किसके कारण होता है?

23 / 30

Which of the following is produced during water stress condition ?
जल की कमी आने से क्या बनता है:

24 / 30

Which type of transpiration is more common –
किस प्रकार का वाष्पोत्सर्जन अधिक होता है :

25 / 30

With decrease in atmospheric pressure the rate of transpiration will :-
वायुमण्डलीय दाब गिरने पर वाष्पोत्सर्जन की दर पर क्या प्रभाव पड़ेगा:

26 / 30

The spray of PMA causes :-
PMA के छिड़काव से क्या प्रभाव उत्पन्न होता है :

27 / 30

For plants transpiration is :-
पादपों के लिए वाष्पोत्सर्जन :

28 / 30

Which one of the following will reduce the rate of transpiration ?
निम्न लिखित में से कौनसा कारक वाष्पोत्सर्जन की दर को घटा देता है:

29 / 30

The most important factor affecting transpiration is
वाष्पोत्सर्जन को सर्वाधिक प्रभावित करने वाला कारक कौनसा है:

30 / 30

Attractive forces of cell walls for water molecules is termed as :-
जल के अणुओं व कोशिका भित्ति के मध्य आकर्षण बल को क्या कहते है :

Your score is

The average score is 48%



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