Subject

Biology

Class

NEET Class 12

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NEET Biology Solved Question Paper 2012

Multiple Choice Questions

31.
In higher plants, continuity of cytoplasm from one cell to its neighbouring cells is established through

apoplast

chloroplast

leucoplast

symplast

symplast

Symplast refers to the interconnected protoplasts and their plasmodesmata which effectively result in the cells of different plant organs forming a continuum.

Apoplast is the space outside the plasma membrane within which material can diffuse freely.

Chloroplasts are small organelles inside the cells of plants and algae. They absorb light to make sugar in a process called photosynthesis.

Leucoplast is a colourless organelle found in plant cells, used for the storage of starch or oil.

32.

Who is regarded as the 'Father of Taxonomy'?

John Ray
Carolus Linnaeus
AP de Candolle
Charles Darwin

33.

Muga silk worm feeds on

Shorea
Terminalia
Machilus
Marus

34.

Which one of the following animal phyla possesses spicule?

Annelida
Mollusca
Porifera
Platyhelminthes

35.

Fin rot of fish is caused by

Aeromonas
Pseudomonas
Branchiomyces
Xenopsylla

36.

The vein which is formed from the capillaries of an organ and terminates into capillaries in some other organ before entering the heart is called

pulmonary vein
coronary vein
portal vein
systemic vein

37.

During synaptic transmission of nerve impulse, neurotransmitter (P) is released from synaptic vesicles by the action of ions (Q). Choose the correct P and Q.

P - Acetylcholine; Q - Ca²⁺
P - Acetylcholine; Q - Na⁺
P - GABA; Q - Na⁺
P - Cholinesterase; Q - Ca²⁺

38.

Choose the right sequential phenomena among the following during the delivery of O₂ from blood to tissue.

I. Absorption of CO₂ by the blood.

II. Reaction of absorbed CO₂ with H₂O to form H₂CO₃ within RBC and its conversion into H⁺ and HCO₃^- ions.

III. Reaction of absorbed CO₂ with H₂O in plasma to form H₂CO₃ and its conversion into H⁺ and HCO₃^- ions.

IV. Combination of H⁺ with haeme portion of HbO₂ to release O₂.

V. Combination of HCO₃^- with haeme portion of HbO₂ to form reduced haemoglobin and release of O₂.

I, II and V
I, III and IV
I, II and IV
I, III and V

39.

Match the items in column I with those in column II and choose the correct answer.

Column I	Column II
A. Electroencephalography	1. A graphic recording of the electrical activity of heart
B. Electrocardiography	2. A graphic recording of the electrical activity of brain.
C. Endoscopy	3. A technique that gives image automatically in multiple planes.
D. MRI	4. To view within th body without cutting through the overlaying tissues.