專(zhuān)題4生命活動(dòng)的調(diào)節(jié)

1、專(zhuān)題四專(zhuān)題四熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析生物生物(QG)(QG)專(zhuān)題四專(zhuān)題四熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析生物生物(QG)(QG)專(zhuān)題四專(zhuān)題四熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析生物生物(QG)(QG)【解析】?jī)?nèi)環(huán)境指細(xì)胞外液。抗體、Ca2+、激素均可存在于細(xì)胞外液中;血紅蛋白存在于紅細(xì)胞內(nèi),屬于細(xì)胞內(nèi)液成分。【答案】B2.一次性過(guò)量飲水會(huì)造成人體細(xì)胞腫脹,功能受損,可靜脈注射高濃度的生理鹽水(質(zhì)量分?jǐn)?shù)為 1.8%的 NaCl 溶液)對(duì)患者進(jìn)行治療。其原理是()。A.升高細(xì)胞外液的離子濃度B.促進(jìn)抗利尿激素的分泌C.降低細(xì)胞內(nèi)液的離子濃度D.減少細(xì)胞外液液體總量專(zhuān)題四

2、專(zhuān)題四熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析生物生物(QG)(QG)【解析】細(xì)胞腫脹是由細(xì)胞內(nèi)液濃度相對(duì)增大,導(dǎo)致細(xì)胞內(nèi)液增多。治療時(shí)可靜脈滴注高濃度的生理鹽水,以提高細(xì)胞外液的滲透壓,使細(xì)胞內(nèi)液恢復(fù)正常?！敬鸢浮緼3.右圖所示為動(dòng)物的某組織示意圖。其中 1 是毛細(xì)血管壁,2 是紅細(xì)胞,3 是血漿,4 是細(xì)胞內(nèi)液,5 是組織液。下列有關(guān)說(shuō)法正確的是()。A.1 的直接生活環(huán)境是 3B.二氧化碳濃度最高的部位是 5C.葡萄糖由 3 進(jìn)入 2 的過(guò)程是主動(dòng)運(yùn)輸專(zhuān)題四專(zhuān)題四熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析生物生物(QG)(QG)專(zhuān)題四專(zhuān)題四熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析生物生物(

3、QG)(QG)專(zhuān)題四專(zhuān)題四熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析生物生物(QG)(QG)專(zhuān)題四專(zhuān)題四熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析生物生物(QG)(QG)專(zhuān)題四專(zhuān)題四熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析生物生物(QG)(QG)專(zhuān)題四專(zhuān)題四熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析生物生物(QG)(QG)專(zhuān)題四專(zhuān)題四熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析生物生物(QG)(QG)【解析】興奮可從一個(gè)神經(jīng)元的軸突傳到另一個(gè)神經(jīng)元的細(xì)胞體或樹(shù)突;興奮通過(guò)突觸前膜釋放神經(jīng)遞質(zhì)經(jīng)突觸間隙傳遞到突觸后膜,可以根據(jù)突觸小泡位置進(jìn)行判斷;興奮在神經(jīng)纖維上的傳導(dǎo)方向與膜內(nèi)電流方向一致?！敬鸢浮緾專(zhuān)

4、題四專(zhuān)題四熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析生物生物(QG)(QG)9.上圖為神經(jīng)-肌肉連接示意圖。黑點(diǎn)()表示神經(jīng)元細(xì)胞體,表示神經(jīng)纖維。肌肉受到刺激不由自主地收縮,大腦也能產(chǎn)生感覺(jué)。下列說(shuō)法不正確的是()。A.大腦支配肌肉運(yùn)動(dòng)的興奮傳導(dǎo)途徑依次是B.肌肉受到刺激不由自主收縮的興奮傳導(dǎo)途徑依次是C.興奮只能由傳遞至而不能由傳遞至D.肌肉受到刺激,大腦產(chǎn)生感覺(jué)的興奮傳導(dǎo)途徑依次是【解析】肌肉受到刺激不自主地收縮是低級(jí)反射,不由大腦皮層支配,應(yīng)是經(jīng)過(guò)途徑完成反射;通過(guò)突觸結(jié)構(gòu)判斷,興奮在和兩個(gè)神經(jīng)元上的傳遞是單向的,只能專(zhuān)題四專(zhuān)題四熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析生物生物(QG)(

5、QG)專(zhuān)題四專(zhuān)題四熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析生物生物(QG)(QG)專(zhuān)題四專(zhuān)題四熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析生物生物(QG)(QG)專(zhuān)題四專(zhuān)題四熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析生物生物(QG)(QG)專(zhuān)題四專(zhuān)題四熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析生物生物(QG)(QG)專(zhuān)題四專(zhuān)題四熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析生物生物(QG)(QG)專(zhuān)題四專(zhuān)題四熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析生物生物(QG)(QG)專(zhuān)題四專(zhuān)題四熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析生物生物(QG)(QG)專(zhuān)題四專(zhuān)題四熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析生物生物(

6、QG)(QG)專(zhuān)題四專(zhuān)題四熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析生物生物(QG)(QG)專(zhuān)題四專(zhuān)題四熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析生物生物(QG)(QG)專(zhuān)題四專(zhuān)題四熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析生物生物(QG)(QG)專(zhuān)題四專(zhuān)題四熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析生物生物(QG)(QG)專(zhuān)題四專(zhuān)題四熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析生物生物(QG)(QG)專(zhuān)題四專(zhuān)題四熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析生物生物(QG)(QG)專(zhuān)題四專(zhuān)題四熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析生物生物(QG)(QG)專(zhuān)題四專(zhuān)題四熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析生

7、物生物(QG)(QG)專(zhuān)題四專(zhuān)題四熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析生物生物(QG)(QG)專(zhuān)題四專(zhuān)題四熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析生物生物(QG)(QG)專(zhuān)題四專(zhuān)題四熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析生物生物(QG)(QG)專(zhuān)題四專(zhuān)題四熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析生物生物(QG)(QG)專(zhuān)題四專(zhuān)題四熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析生物生物(QG)(QG)專(zhuān)題四專(zhuān)題四熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析生物生物(QG)(QG)專(zhuān)題四專(zhuān)題四熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析生物生物(QG)(QG)專(zhuān)題四專(zhuān)題四熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)

8、題透析生物生物(QG)(QG)專(zhuān)題四專(zhuān)題四熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析生物生物(QG)(QG)專(zhuān)題四專(zhuān)題四熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析生物生物(QG)(QG)專(zhuān)題四專(zhuān)題四熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析生物生物(QG)(QG)專(zhuān)題四專(zhuān)題四熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析生物生物(QG)(QG)專(zhuān)題四專(zhuān)題四熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析生物生物(QG)(QG)專(zhuān)題四專(zhuān)題四熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析生物生物(QG)(QG)專(zhuān)題四專(zhuān)題四熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析生物生物(QG)(QG)專(zhuān)題四專(zhuān)題四熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析熱點(diǎn)重

9、點(diǎn)難點(diǎn)專(zhuān)題透析生物生物(QG)(QG)專(zhuān)題四專(zhuān)題四熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析生物生物(QG)(QG)專(zhuān)題四專(zhuān)題四熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析生物生物(QG)(QG)專(zhuān)題四專(zhuān)題四熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析生物生物(QG)(QG)專(zhuān)題四專(zhuān)題四熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析生物生物(QG)(QG)專(zhuān)題四專(zhuān)題四熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析生物生物(QG)(QG)專(zhuān)題四專(zhuān)題四熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析生物生物(QG)(QG)專(zhuān)題四專(zhuān)題四熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析生物生物(QG)(QG)專(zhuān)題四專(zhuān)題四熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透

10、析熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析生物生物(QG)(QG)專(zhuān)題四專(zhuān)題四熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析生物生物(QG)(QG)專(zhuān)題四專(zhuān)題四熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析生物生物(QG)(QG)專(zhuān)題四專(zhuān)題四熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析生物生物(QG)(QG)專(zhuān)題四專(zhuān)題四熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析生物生物(QG)(QG)專(zhuān)題四專(zhuān)題四熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析生物生物(QG)(QG)專(zhuān)題四專(zhuān)題四熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析生物生物(QG)(QG)專(zhuān)題四專(zhuān)題四熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析生物生物(QG)(QG)專(zhuān)題四專(zhuān)題四熱點(diǎn)重點(diǎn)難

11、點(diǎn)專(zhuān)題透析熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析生物生物(QG)(QG)專(zhuān)題四專(zhuān)題四熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析生物生物(QG)(QG)專(zhuān)題四專(zhuān)題四熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析生物生物(QG)(QG)專(zhuān)題四專(zhuān)題四熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析生物生物(QG)(QG)專(zhuān)題四專(zhuān)題四熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析生物生物(QG)(QG)專(zhuān)題四專(zhuān)題四熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析生物生物(QG)(QG)專(zhuān)題四專(zhuān)題四熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析生物生物(QG)(QG)專(zhuān)題四專(zhuān)題四熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析生物生物(QG)(QG)專(zhuān)題四專(zhuān)題四熱

12、點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析生物生物(QG)(QG)專(zhuān)題四專(zhuān)題四熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析生物生物(QG)(QG)專(zhuān)題四專(zhuān)題四熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析生物生物(QG)(QG)專(zhuān)題四專(zhuān)題四熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析生物生物(QG)(QG)專(zhuān)題四專(zhuān)題四熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析生物生物(QG)(QG)專(zhuān)題四專(zhuān)題四熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析生物生物(QG)(QG)專(zhuān)題四專(zhuān)題四熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析生物生物(QG)(QG)專(zhuān)題四專(zhuān)題四熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析生物生物(QG)(QG)專(zhuān)題四

13、專(zhuān)題四熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析生物生物(QG)(QG)專(zhuān)題四專(zhuān)題四熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析生物生物(QG)(QG)專(zhuān)題四專(zhuān)題四熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析生物生物(QG)(QG)專(zhuān)題四專(zhuān)題四熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析生物生物(QG)(QG)專(zhuān)題四專(zhuān)題四熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析生物生物(QG)(QG)專(zhuān)題四專(zhuān)題四熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析生物生物(QG)(QG)5.下圖所示的是反射弧的模式圖,有關(guān)敘述正確的是()。A.如果從 b 點(diǎn)施加一強(qiáng)刺激,a、c、d 中只有 d 能檢測(cè)到膜內(nèi)外電位變化B.興奮以電信號(hào)形

14、式在離體神經(jīng)纖維上傳導(dǎo)時(shí),其特點(diǎn)為單方向C.神經(jīng)元之間傳遞興奮時(shí)一定是從一個(gè)神經(jīng)元的軸突傳到下一個(gè)神經(jīng)元的樹(shù)突D.反射弧是反射的結(jié)構(gòu)基礎(chǔ),若反射弧中只有一個(gè)環(huán)節(jié)結(jié)構(gòu)受損,反射仍可以完成【解析】興奮在神經(jīng)元之間的傳遞是單向的,所以當(dāng)刺激 b時(shí),只有 d 能檢測(cè)到膜內(nèi)外電位變化。興奮在離體神經(jīng)纖維上的傳導(dǎo)是雙向的?？蓮囊粋€(gè)神經(jīng)元的軸突傳到下一專(zhuān)題四專(zhuān)題四熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析生物生物(QG)(QG)專(zhuān)題四專(zhuān)題四熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析生物生物(QG)(QG)專(zhuān)題四專(zhuān)題四熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析生物生物(QG)(QG)專(zhuān)題四專(zhuān)題四熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析

15、熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析生物生物(QG)(QG)專(zhuān)題四專(zhuān)題四熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析生物生物(QG)(QG)專(zhuān)題四專(zhuān)題四熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析生物生物(QG)(QG)專(zhuān)題四專(zhuān)題四熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析生物生物(QG)(QG)專(zhuān)題四專(zhuān)題四熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析生物生物(QG)(QG)專(zhuān)題四專(zhuān)題四熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析生物生物(QG)(QG)專(zhuān)題四專(zhuān)題四熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析生物生物(QG)(QG)專(zhuān)題四專(zhuān)題四熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析生物生物(QG)(QG)專(zhuān)題四專(zhuān)題四熱點(diǎn)重點(diǎn)難點(diǎn)

16、專(zhuān)題透析熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析生物生物(QG)(QG)專(zhuān)題四專(zhuān)題四熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析生物生物(QG)(QG)專(zhuān)題四專(zhuān)題四熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析生物生物(QG)(QG)專(zhuān)題四專(zhuān)題四熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析生物生物(QG)(QG)專(zhuān)題四專(zhuān)題四熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析生物生物(QG)(QG)【解析】F1雌雄小鼠數(shù)量比為 21,說(shuō)明親本的雌鼠是雜合子。若致死基因?yàn)?d,則 F1雌鼠基因型為 XDXd和XDXD。若致死基因?yàn)?D,則 F1雌鼠的兩種基因型分別為XDXd、XdXd。若致死基因?yàn)?D,則 F1小鼠隨機(jī)交配,F2存活的個(gè)體中

17、 d 基因頻率為 10/11?！敬鸢浮緾5.右圖表示有限環(huán)境中某一種群數(shù)量增長(zhǎng)的曲線(xiàn)。下列有關(guān)敘述不正確的是()。A.K是環(huán)境條件所能維持的種群數(shù)量最大值B.在K值之前,種群的數(shù)量逐漸增大專(zhuān)題四專(zhuān)題四熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析生物生物(QG)(QG)專(zhuān)題四專(zhuān)題四熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析生物生物(QG)(QG)專(zhuān)題四專(zhuān)題四熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析生物生物(QG)(QG)專(zhuān)題四專(zhuān)題四熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析生物生物(QG)(QG)專(zhuān)題四專(zhuān)題四熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析生物生物(QG)(QG)專(zhuān)題四專(zhuān)題四熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析熱點(diǎn)重點(diǎn)難點(diǎn)專(zhuān)題透析生物生物(QG)(QG)某同學(xué)研究植物向光性的原因時(shí),進(jìn)行了如圖所示的實(shí)驗(yàn),你從實(shí)驗(yàn)中獲得的結(jié)論是。你獲得這一結(jié)論的理由是。實(shí)驗(yàn)二:甲圖為某反射弧結(jié)構(gòu)模式圖,乙圖是對(duì)甲圖中部分結(jié)構(gòu)的放大圖。甲乙(1)甲圖中代表效應(yīng)器,乙圖結(jié)構(gòu)中突觸小泡釋放出的神經(jīng)遞質(zhì)將通過(guò)(填內(nèi)環(huán)境成分