NEET Biology (Oct)2020 PYQs

Inhibitory substances in dormant seeds cannot be removed by subjecting seeds to:

Match the following concerning the activity/function and the phytohormone involved:

(A)Fruit ripener	(I)Abscisic acid
(B)Herbicide	(II)GA3
(C)Bolting agent	(III)2, 4-D
(D)Stress hormone	(IV)Ethephon

Select the correct option from following:

A species which was introduced for ornamentation but has become a trouble-some weed in India:

Intrinsic factor that helps in the absorption of vitamin B₁₂ is secreted by:

The proteolytic enzyme rennin is found in:

The Total Lung Capacity (TLC) is the total volume of air accomodated in the lungs at the end of a forced inspiration. This includes:

Match the following columns and select the correct option :

Column-I	Column-II
(A)Pneumotaxic Centre	(I)Alveoli
(B)O2 Dissociation curve	(II) Pons region of brain
(C)Carbonic Anhydrase	(III)Haemoglobin
(D)Primary site of exchange of gases	(IV)R.B.C.

According to Central Pollution Control Board [CPCB] what size (in diameter) of particulate is responsible for causing greater harm to human health ?

Which of the following conditions cause erythroblastosis foetalis ?

The increase in osmolarity from outer to inner medullary interstitium is maintained due to:
I. Close proximity between Henle's loop and vasa recta
II. Counter current mechanism
III. Selective secretion of HCO₃^- and hydrogen ions in PCT
IV. Higher blood pressure in glomerular capillaries