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Solve your IGNOU Doubts
Question:

असमतापियों में तापमान नियमन

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Question:

हाइपोथैलमस तथा पीयूष (पिट्यूटरी) ग्रंथि के मध्य तंत्रि-अंतःस्रावी संबंध

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Question:

निम्नलिखित में विभेद कीजिए:

i) मदचक्र तथा रजोचक्र

ii) पेप्टॉइड और स्टेरॉयड हार्मोन

iii)पक्ष्मानी और कशामी गति

iv) ग्वानोउत्सर्जन और यूरिकोउत्सर्जन

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Question:

 

तंत्रिका तंत्र में पाई जाने वाले अंतर्ग्रथन की संरचना का वर्णन कीजिए। क्या होता है जब कोई क्रिया विभव (action potential) अंतर्सथन पर पहुंचता है? उपयुक्त रेखाचित्रों की सहायता से समझाइए।

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Question:

ऑक्सीजन वियोजन वक्रा (oxygen dissociation curve) को परिभाषित करके उसका वर्णन कीजिए। यह वक्र उच्च तापमान तथा अधिक कार्बन डाईऑक्साइड (CO₂) सांद्रता से किस प्रकार प्रभावित होता है?

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Question:

 

Describe the various steps involved in Calvin cycle with the help of a diagram.

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Question:

Define senescence. How is it regulated in plants?

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Question:

Describe the applications of plant hormones.

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Question:

Photorespiration

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Question:

Phytochrome

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Question:

Munch pressure flow model

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Question:

Emerson Enhancement effect

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Question:

 

Name the major macronutrients required for plant growth. Describe the role of any two of them.

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Question:

Describe the mechanism of stomatal opening.

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Question:

Describe the role of proton pump in active transport of protons across plasma-membrane.

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Question:

Describe the ways how plant adapt to biological stresses.

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Question:

 

Where does the absorption of carbohydrates, lipids and amino acids take place in the vertebrate body? Describe the method of glucose absorption.

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Question:

Role of calcium in regulation of muscle contraction

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Question:

Lymphatic system

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Question:

Molluscan kidney

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