When stimulated, the stomach's environment is characterized as acidic. It secretes protease enzymes and hydrochloric acid to assist digestion. The hydrochloric acid keeps the pH low, enabling protease enzymes to effectively break down proteins. Following digestion, the stomach returns to its normal pH level. Therefore, acid secretion coincides with food presence to support proper digestion.
Answer:
Exocrine glands are characterized by discharging their secretions into duct systems.
Explanation:
Exocrine glands:
These glands transport their secretions through a network of ducts that ultimately connect to the body's exterior. This means there is a direct continuity between the interior surfaces of the glands and their duct system with the external surfaces of the body (like the skin).
Examples of exocrine glands include gastric glands, salivary glands, and sweat glands.
Answer:
a. Anabolic pathways synthesize molecules, necessitate energy, and are endergonic.
Explanation:
Anabolic pathway refers to the metabolic processes that synthesize intricate molecules from simpler ones, generally through condensation (where monomers are linked covalently, generating water as a by-product). It demands energy for forming new bonds, which indicates that it is endergonic.
Conversely, the catabolic pathway pertains to metabolic reactions that dismantle complex moleculesinto simpler components, typically through hydrolysis (where water is utilized to sever bonds within the polymer). It liberates energy during the bond-breaking process, this indicates it is exergonic.
Based on this information we can ascertain that the correct answer is a. Anabolic pathways synthesize molecules, necessitate energy, and are endergonic.
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