Which row identifies the product at each electrode?

Correct Answer: D

Rationale: The correct answer is D because lead is the product at the cathode (negative electrode) during electrolysis, while bromine is the product at the anode (positive electrode). Lead is reduced at the cathode to form lead metal, and bromine is oxidized at the anode to form bromine gas. This is in line with the general rule that cations are attracted to the cathode and are reduced, while anions are attracted to the anode and are oxidized. Choice A is incorrect as bromide ions are reduced at the cathode, not lead ions. Choice B is incorrect because bromine is produced at the anode, not lead. Choice C is incorrect because lead ions are reduced at the cathode, not bromide ions.

Correct Answer: D

Rationale: The correct answer is D: high blood glucose concentration. Insulin is released by the pancreas in response to increased blood glucose levels. High blood glucose signals the body to lower it by facilitating the uptake of glucose into cells. Low blood amino acid, fatty acid, or glucose concentrations would not stimulate insulin release as they do not directly regulate blood sugar levels.

Correct Answer: A

Rationale: Rationale: POMC is processed into various peptide hormones, including adrenocorticotropic hormone (ACTH). ACTH is produced by the pituitary gland and stimulates the adrenal glands to release cortisol. This is why option A is correct. Growth hormone, thyroxin, and insulin are not derived from POMC, making options B, C, and D incorrect.

Correct Answer: D

Rationale: The correct answer is D because the superior mesenteric artery is located posterior to the neck of the pancreas and anterior to the uncinate process. This is anatomically accurate as the artery runs behind the neck of the pancreas and in front of the uncinate process. Choice A is incorrect as it places the artery inferior to the neck of the pancreas. Choice B is incorrect as it positions the artery in front of the neck of the pancreas and behind the uncinate process. Choice C is incorrect as it suggests the artery is above the neck of the pancreas and behind the uncinate process, which is not accurate in anatomical terms.

Correct Answer: a

Rationale: The correct answer is A because hormones and neurotransmitters do not require a synapse to communicate with other cells. Hormones are typically released into the bloodstream and travel throughout the body to target cells with specific receptors. Neurotransmitters, on the other hand, communicate across synapses between nerve cells. Choice B is correct as hormones only affect cells with specific receptors. Choice C is correct as hormones can indeed influence gene expression in target cells. Choice D is correct as G proteins and cAMP are common second messengers that help transmit the hormonal signal within the cell.