Propranolol is a A: M3 receptor agonist B: α receptor agonist C: β receptor antagonist D: α receptor antagonist E: NM receptor antagonist

Propranolol (普萘洛尔) belongs to A: α receptor antagonist B: α receptor agonist C: β receptor antagonist D: β receptor agonist

血管紧张素转化酶2(ACE2)，能够被新冠病毒COVID-19识别，并与之结合从而进入人体细胞，因此ACE2是： A: 病毒吸附蛋白(VAP) B: 细胞受体(receptor) C: 辅助受体(co-receptor) D: 反受体(antireceptor)

CCR5是人体G蛋白偶联因子超家族（GPCR）成员的细胞膜蛋白，它能帮助HIV病毒进入人体细胞，所以CCR5是： A: 病毒吸附蛋白(VAP) B: 细胞受体(receptor) C: 辅助受体(co-receptor) D: 反受体(antireceptor)

新冠病毒COVID-19包膜表面有一种糖蛋白——S蛋白（Spike），它能够与细胞表面的ACE2蛋白结合，所以S蛋白是： A: 病毒吸附蛋白(VAP) B: 细胞受体(receptor) C: 辅助受体(co-receptor) D: 反受体(antireceptor)

The majority of cell-surface receptor is ( ).

名词解释：cardiopulmonary receptor

Mechanism of action: prazosin ()( ) A: alpha-1 receptor blocker B: beta receptor blocker C: phosphodiesterase inhibitor D: calcium channel blocker

Drops of blood pressure can lead to renin release, which is mainly because A: stretch receptor of afferent arteriole B: aortic arch baroreceptor C: osmoreceptor in hypothalamus D: cardiopulmonary receptor

Which form is transformation ( ) A: genetic substance was transmitted from donor bacterium to receptor bacterium by F pilus B: genetic substance was transmitted from donor bacterium to receptor bacterium by vector phage C: Free DNA segment from donor bacterium directly was ingested into receptor bacterium D: prophage was integrated into bacterial chromosome