Question 1 :
If the disease lasts for more than ........... then it is said to be chronic.

Question 4 :
Which of the following is the initial step towards good health?

Question 5 :
Which of the following is used to treat both fungal and bacterial infection?

Question 8 :
Which of the following diseases is due to anallergic reaction ?

Question 20 :
Time required for <i>Plasmodium</i>&#160;to complete it's life cycle in mosquito is&#160;

Question 21 :
The type of epithelium found in places where transportation of substances occurs through selectively permeable is&#160;

Question 28 :
Which of the following substances is absent in the cell walls of sclerenchyma?

Question 29 :
The epithelium which forms the inner wall of blood vessels is_____________

Question 31 :
The surface of the skin, that is heavily used becomes thicker and tougher, and is full of durable ........... protein.

Question 32 :
Which of the following structures or materials is incorrectly matched with a tissue?

Question 36 :
Match the following simple epithelial tissues in column I with their occurrence in column II and choose the correct combination from the options given.<br/><table class="wysiwyg-table"><tbody><tr><td><br/></td><td>Column I&#160;</td><td></td><td>Column II</td></tr><tr><td>A</td><td>Squamous</td><td>1</td><td>Intestinal glands</td></tr><tr><td>B</td><td>Cuboidal</td><td>2</td><td>Trachea</td></tr><tr><td>C</td><td>&#160;Columnar</td><td>3</td><td>Ovary</td></tr><tr><td>D</td><td>Ciliated&#160;</td><td>4</td><td>Alveoli</td></tr><tr><td>E</td><td>Pseudo stratified</td><td>5</td><td>Oviduct</td></tr></tbody></table>

Question 37 :
The pH of the blood is maintained by balancing the ratio of<br>

Question 40 :
Single layer of flattened calls with boundaries is observed in all of the following except.

Question 45 :
Assertion: Presence of connective tissue inside the brain is essential for conduction of nerve impulse. Reason: Connective tissue hold together the nerve cells of brain

Question 47 :
Read the given statements and select the correct option.<br>Statement 1 : Blood is colourless in the insects.<br>Statement 2 : Insect blood has no role in $O_2$ transport.

Question 51 :
Krause's membrane or Z-line is a myofibril, which separates two adjacent<br>

Question 52 :
The interval between the beginning of electrical response and peak of tension recorded is the<br>

Question 53 :
Assertion: Connective tissue inside the brain is essential for conduction of nerve impulse. Reason: Connective tissue hold together the nerve cells of brain.

Question 54 :
The bundle of axons in the central nervous system is known as

Question 55 :
Microtubules were discovered from axoplasm of myelinated nerve fibers by DeRobertis and Franchi and termed as

Question 58 :
In the thin filament of skeletal muscle fibre, a small globular protein, that masks the active sites on the F-actin is<br>

Question 59 :
Assertion: Nerve cells arise from the neural plate of embryonic endoderm and serve as the structural and functional units. Reason: Nerve cells are highly excitable cells specialized for impulse conduction known as neurons.