Which transport of protein's import belongs to gated transport?

Na+ channel on endplate membrane is an ( ) oin channel A: voltage-gated B: chemically-gated C: mechanically-gated D: non-gated

Chemically induced colon carcinogenesis in rodents is also suppressed by _____ of NSAIDs.

Food is broken down both physically and chemically in the process called____.

( ) are organic compounds that are chemically based on carbon, hydrogen and other nonmetallic elements.

When different elements are chemically combined, with the atoms held together by chemical bonds, they form chemical__5___.

Which of these is the most complete list of the agents of metamorphism, the agents that drive metamorphic transformations in rocks? A: pressure, temperature, heat B: chemically active fluids, pressure, differential stress C: heat, differential stress, chemically active fluids D: heat, pressure, parent rock

在PubMed中查找阿司匹林诱发消化道出血的文献,应采用的检索式为 ( ) A: ("Aspirin/adverse effects"[Mesh]) AND "Gastrointestinal Hemorrhage/chemically induced"[Mesh] B: ("Aspirin/adverse effects"[Mesh]) AND "Gastrointestinal Hemorrhage/etiology"[Mesh] C: ("Gastrointestinal Hemorrhage/adverse effects"[Mesh]) AND "Aspirin/chemically induced"[Mesh] D: ("Aspirin/therapeutic use "[Mesh]) AND "Gastrointestinal Hemorrhage/chemically induced"[Mesh] E: ("Aspirin/adverse effects"[Mesh]) AND "Gastrointestinal Hemorrhage/therapy"[Mesh]

Fuel is (any) substance or material (that reacts) chemically (with) another substance or material to produce (hot). A: any B: that reacts C: with D: hot

Which of the following best describes the behavior of a gated channel A: It stays open continuously when stimulated. B: It opens more frequently in response to a given stimulus. C: It opens more widely as the stimulus becomes stronger. D: It remains closed if unstimulated.