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NEET Biology Solved Question Paper 2010

Multiple Choice Questions

11.

What are Singer and Nicolson known for?

One-gene-one-enzyme hypothesis
Plasma membrane modifications
Fluid-mosaic model of plasma membrane
Structure of DNA

12.

Which of the following have porous body and are diploblastic?

Aurelia and Obelia
Adamsia and Euplectella
Leucosolenia and Spongilla
Sycon and Hydra

13.

Which one is correct regarding electrocardiograph (ECG)?

P- wave represents the electrical excitation of the ventricle.
QRS complex represents repolarisation of the ventricles
T- wave represents repolarisation of the atria
By counting the number of QRS complexes one can determine the pulse rate

14.

Animals take phosphorus from

water
plants
rock
soil

15.

What is the effect of GnRH produced by hypothalamus?

Stimulates the synthesis and secretion of androgens
Stimulates secretion of milk in mammary glands
Stimulates foetal ejection reflex
Stimulates synthesis of carbohydrates from non- carbohydrates in liver

16.

Chemosensitive area of respiratory centre in medulla is affected by

less CO₂ and H⁺ ions
less O₂ and H⁺ions
excess CO₂ and H⁺ ions
excess O₂ and H⁺ions

17.

Microvilli of intestinal epithelium are similar in function with

typhlosole in earthworm
hepatic caecae in cockroach
intestinal caecum in earthworm
Malpighian tubules in coackroach

18.
The type of epithelial cells which line the inner surface of Fallopian tubes, bronchioles and bronchi are known as

squamous epithelium

ciliated epithelium

columnar epithelium

cubical epithelium

ciliated epithelium

The cells of ciliated epithelium consists of numerous delicate hair like outgrowths, called cilia. It lines most of the respiratory tract and Fallopian tubes. It is also present in the tympanic cavity of middle ear and auditory tube.

Squamous epithelium is made of a single thin layer of flattened cells with irregular boundaries. It is found in the walls of blood vessels and air sacs of lungs.

Columnar epithelium is composed of a single layer of tall and slender cells. It is found in the lining of stomach and intestine.

Cuboidal epithelium is composed of a single layer of cube- like cells. It is found in the ducts of glands and tubular parts of nephrons in kidney.