A.蛋白質(zhì)的變性與復(fù)性                       B.核酸的變性與復(fù)性
C.蛋白質(zhì)—蛋白質(zhì)相互作用               D.蛋白質(zhì)—核酸相互作用
22.若某一酶的國(guó)際編號(hào)為 EC.6.1.1.27，則該酶應(yīng)為【     】
A.合成酶類                                           B.轉(zhuǎn)移酶類
C.水解酶類                                           D.氧化還原酶類
23.口服葡萄糖耐量實(shí)驗(yàn)用于【   】
A.糖尿病早期診斷                               B.高膽固醇血癥早期診斷
C.高脂血癥早期診斷                           D.冠心病早期診斷
24.臨床上急性胰腺炎發(fā)病，胰腺組織壞死是由于消化液返流入胰腺激活【       】
A.磷脂酶 A                                          B.磷脂酶 B
C.磷脂酶 C                                          D.磷脂酶 D
25.下述氨基酸中屬于必需氨基酸的是【 】
A.丙氨酸                                               B.絲氨酸
C.亮氨酸                                               D.谷氨酸
26.代表組成蛋白質(zhì)的 20 種氨基酸的密碼子數(shù)是【    】
A.16                                                      B.46
C.61                                                       D.64
27.促進(jìn)成骨、促進(jìn)鈣磷吸收，使血清鈣上升的因子是【    】
A.抗利尿激素                                       B.降鈣素
C.維生素 D                                          D.血管緊張素