Answer:
The correct answer will be option-B
Explanation:
Locus coeruleus is a nucleus composed of neurons in the pons region of the brainstem. The pons and brainstem are involved in the physiological responses of panic and the stress conditions.
Nor-epinephrine is the hormone which is produced in the stress and fear conditions and produces fight or flight response. The nor-epinephrine is produced from the adrenal medulla in the kidney and the brain. The part of the brain involved in the production of Nor-epinephrine is locus coeruleus.
Thus, Option-B is the correct answer.
Lateral meristem is responsible for the secondary growth of the plant.
Answer C, I think. Hope to help :)
Answer:
d) A constitutively active mutant form of PKA in skeletal muscle cells would lead to an excess in the amount of glycogen available.
Explanation:
This occurs in the process of Glycogenolysis. The process involves breaking down of glycogen to glucose -1- phosphate and glycogen which helps in the release of glucose into the blood stream to prevent hypoglycemia(low blood sugar). The glucose-1-phosphate is later converted to glucose -6-phosphate. The latter enters the glycolytic pathway in which the reaction is catalysed by the enzyme phosphoglucomutase.
This homeostatic glucose regulation is regulated by the protein kinase(PKA)/ cAMP pathway in the skeletal muscles, the liver and the pancreas.
