Give one function and one deficiency symptom of the following :�

Subject

Biology

Class

ICSE Class 12

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 Multiple Choice QuestionsShort Answer Type

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41.

Give one function and one deficiency symptom of the following : 

Magnesium


Function : Activates enzymes in phosphate metabolism, is a constituent of chlorophyll and also maintains ribosome structure.

Deficiency symptom — Chlorosis

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42.

Give one function and one deficiency symptom of the following :

Sulphur

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43.

Give one function and one deficiency symptom of the following :

Molybdenum

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44.

Define the following:

(i) Parthenocarpy
(ii) Root Pressure.

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45. Draw a labelled diagram of the longitudinal section of the human kidney. 
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46. Briefly describe the events that occur during the luteal phase of the menstrual cycle.
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47.

Define:

(i) Peristalsis

(ii) Multiple fruits

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48. Explain the elongation of giraffe’s neck according to the theories of Lamarck and Darwin. 
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49.

Define:

(i) Reproductive Isolation

(ii) Homologous Organs.

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50. Enlist the basic modes of transmission of AIDS.
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