2013年3月21日 星期四

中四生物練習: 第8章II


成績:
/34
=   %

 
九龍塘學校(中學部)
中四生物科
第八章練習 (II)

參考答案
1.
a     A                                                                                                                 1
      厚的肌肉組織可改變血管的直徑,                                                          1
      從而調節供應身體各組織細胞的血流量。                                                  1
b     B分支成龐大的網絡,                                                                           1
      增加物質交換的表面積。                                                                            1
     
      B的總橫切面面積很大,                                                                        1
      令血液流動減慢,增加物質交換的時間。                                                  1
c     i     組織液                                                                                                  1
ii    B近管A一端的血壓較體細胞周圍的液體的壓力高。                      1
      這股高血壓把血漿的一些成分逼出微血管壁,形成組織液。               1
d    D/淋巴微管 淋巴管 (前)腔靜脈                                 2

書後練習 (P. 31-35)
M.C
6
7
8
9
10
11
12
B
A
B
C
B
B
B
(7)

書後練習 (P. 34 - 35)
Q.16       
a.     叉燒含有大量脂肪, 消化後以脂肪微粒吸收形式被吸收 (1)
        脂肪微粒被吸收至絨毛內的乳微管, 再轉運至淋巴管 (1)
        脂肪微粒像乳化的溶液, 使淋巴變得乳白 (1)                                                                    3
b.     淋巴管附近的骨骼肌收縮時會擠壓淋巴管, 使淋巴液向前後流動 (1)
        淋巴管內的瓣膜防止淋巴倒流, 肯定淋巴向前流動 (1)                                                    2
c.     因為淋巴管被寄生蟲阻塞, 腿組織內過多的組織液不能回流血液循環系統 (1)                  
        組織液不斷於組織內積聚引致腿組織腫脹 (1)                                                                   2
(7)

Q. 20
    a      肺動脈                                                                                                                    1
        b      S à Dà Cà Pà Xà Qà Bà Aà R全部正確給2分,否則0      2
        c      R管壁較S管壁厚。                                                                                    1
                R的管腔較S的管腔小。                                                                                    1
    d      R中的血液較S中的血液含多氧/較少二氧化碳/較多葡萄糖。
                (任何兩項,每項1                                                                                       2
        e      半月瓣關閉                                                                                                            1
                A C的心肌放鬆                                                                                              1
                A C內的血壓較P R內的血壓低。                                                       1              
(10)

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