Question

Choose the correct sequence of events that occur during regulation of blood glucose
(i) Increase in blood glucose
(ii) Increase in circulating glucagon
(iii) Release in glucose from glycogen
(iv) Decrease in blood glucose level

• A. iv, iii, ii, i
• B. iii, i, ii, iv
• C. iv, ii, iii, i
• D. i, ii, iv, iii

Answer 1

Answer: (C)

iv, ii, iii, i

Glucagon hormone is secreted in response to decreased blood glucose level (iv, ii). Glucagon hormone from pancreas stimulates the liver to break down glycogen into glucose and breakdown of fat into glycerol and fatty acids in adipose tissues to serve as a substrate for glucose formation in liver cells (iii). The overall effect is increased blood glucose level (i). The correct answer is C.