Which endocrine hormone is secreted by the beta cells of the islets of Langerhans in the pancreas to lower elevated blood glucose levels?
Answer and explanation
Correct answer: A. Insulin
- Step 1: Insulin promotes glucose uptake into skeletal muscle and adipose tissue via GLUT4 transporters. Step 2. It stimulates glycogen synthesis in the liver and inhibits hepatic gluconeogenesis. Answer: Insulin. Why not the others: Glucagon is secreted by alpha cells to raise blood glucose; somatostatin inhibits both; epinephrine stimulates glycogenolysis.
Practise more Biological Sciences, Genetics and Physiology.
Free questions with an explanation for every one, and full timed Bangladesh Civil Service Preliminary Examination mock tests.
More Biological Sciences, Genetics and Physiology questions
- Which cellular organelle is known as the powerhouse of the cell because it synthesizes the majority of adenosine triphosphate (ATP)?
- Which cellular structures are the primary sites of biological protein synthesis in both prokaryotic and eukaryotic cells?
- During the light-dependent reactions of oxygenic photosynthesis in green plants, where does the photolysis of water molecules occur?
- Which key photosynthetic enzyme catalyzes the fixation of carbon dioxide to ribulose-1,5-bisphosphate in the Calvin cycle?
- Which complex vascular plant tissue is responsible for transporting water and dissolved inorganic minerals upward from roots to leaves?
- Which plant hormone is synthesized in shoot apical meristems and induces phototropic bending by stimulating cell elongation on the shaded si…