NEET 2019 Biology PYQs

Excretory Products And Their Elimination

1. A Low levels of antidiuretic hormone.
2. B Secretion of erythropoietin by juxtaglomerular complex.
3. C Maintaining hyperosmolarity towards inner medullary interstitium in the kidneys.
4. D Hydrostatic pressure during glomerular filtration.

Excretory Products And Their Elimination

1. A (A) and (B) are correct
2. B (B) and (C) are correct
3. C (A) and (D) are correct
4. D (C) and (D) are correct

Locomotion And Movement

1. A 8th, 9th and 10th pairs of ribs articulate directly with the sternum.
2. B There are seven pairs of vertebrosternal, three pairs of vertebrochondral and two pairs of vertebral ribs.
3. C 11th and 12thpairs of ribs are connected to the sternum with the help of hyaline cartilage.
4. D Each rib is a flat thin bone and all the ribs are connected dorsally to the thoracic vertebrae and ventrally to the sternum.

Locomotion And Movement

1. A Tetany
2. B Myasthenia gravis
3. C Muscular dystrophy
4. D Botulism

Neural Control And Coordination

1. A Hypothalamus
2. B Cerebrum
3. C Corpus callosum
4. D Medulla oblongata

Neural Control And Coordination

1. A Cornea consists of dense connective tissue of elastin and can repair itself.
2. B Cornea is an external, transparent and protective proteinacious covering of the eye-ball.
3. C Cornea is convex, transparent layer which is highly vascularised.
4. D Cornea consists of dense matrix of collagen and is the most sensitive portion of the eye.

Chemical Coordination And Integration

1. A GLUT I
2. B GLUT II
3. C GLUT IV
4. D GLUT III

Chemical Coordination And Integration

1. A (A)-(V), (B)-(I), (C)-(II), (D)-(III)
2. B (A)-(II), (B)-(IV), (C)-(III), (D)-(I)
3. C (A)-(II), (B)-(IV), (C)-(I), (D)-(III)
4. D (A)-(V), (B)-(IV), (C)-(I), (D)-(III)

Chemical Coordination And Integration

1. A Using aquaporin channels as second messenger.
2. B Activating cyclic AMP located on the cell membrane.
3. C Binding to DNA and forming a gene-hormone complex.
4. D Changing the permeability of the cell membrane.

Reproduction In Organisms

1. A Morels and truffles are edible delicacies.
2. B Yeasts have filamentous bodies with long threadlike hyphae.
3. C Claviceps is a source of many alkaloids and LSD.
4. D Conidia are produced exogenously and ascospores endogenously.