Question67:-Pancreatic « amylase is activated by
A:-Trypsin
8: ion
C:-cr ion
D:-Enteropeptidase
Correct Answer:- Option-C

Question68:-Which of the following statement is/are false about parts of renal
tubule ?

i. Principal cells of collecting duct are large in number and have numerous
mitochondria but intercalated cells of collecting duct are few and contain less
number of mitochondria.

ii. Pars recta of PCT has cuboidal cells with densly packed microvilli called 'brush
border' and high metabolic activity.

iii. The descending and ascending limb of loop of Henle have cells with very low
level of metabolic activity.

iv. Thick ascending limb of loop of Henle has cuboidal epithelial cells with numerous
mitochondria and short microvilli but no brush border.

A:-Only i and ii

B:-Only iii and iv

C:-Only i and iv

D:-Only i and iii

Correct Answer:- Option-A
Question69:-Na-k-2c~ contrasporter is present in which part of renal tubule ?

A:-Distal Convoluted Tubule

B:-Thick Ascending Limb of Loop of Henle

C:-Proximal Convoluted Tubule

D:-Connecting Tubule and Collecting Duct

Correct Answer:- Option-B

Question70:-Which of the following statement is/are true about regulation of body
temperature ?

i. Free nerve endings act as specialized sensors for providing CNS with information
about body's thermal condition.

ii. Hypothalamic cold receptors greatly outnumber warmth receptors.

iii. A one degree change in the core temperature produces a nine fold greater
thermoeffector response.

iv. Increasing local temperature upto 44-46°C causes warmth receptors to increase
their steady firing rate.

A:-Only i and ii

B:-Al the above i, ii, iii and iv
C:-Only i, iii and iv

D:-Only i, ii and iii