2015年11月22日 星期日

中五生物科練習WS10 參考答案

WS10 參考答案

1.       
a      支持身體:脊柱/下肢等/
                運動:肢骨/帶/
                製造紅血細胞:骨髓/
                儲存礦物質:指明任何骨(任何兩項)                                            2 x 2
        b      椎骨:脊髓                                                                                            1
                顱骨:腦                                                                                                1
                肋骨籃:心和肺                                                                                    1

2.
        a      P:韌帶                                                                                                  0.5
                它把骨連接。                                                                                        0.5
                Q:滑液膜                                                                                             0.5
                它分泌滑液。                                                                                        0.5
                R:軟骨                                                                                                 0.5
                它減少骨的磨損。                                                                                0.5
        b      滑液膜                                                                                                    1
                潤滑關節/減少活動時的摩擦。                                                        1
        c      肘關節/膝關節等                                                                                1

                容許骨在一個平面上活動。                                                                1

中五生物科練習WS09參考答案

WS09參考答案


中五生物科練習WS08參考答案

WS08參考答案
1.       
        a      負反饋機制                                                                                            1
        b      感受器                                                                                                    1
                控制中心                                                                                                1
                效應器                                                                                                    1
        c      當激素 X 的水平過低,抑制腦和腦內的腺的作用減少,             1
                使腺促進激素和促進激素的分泌增加。                                            1

                這些激素最終刺激激素 X 的分泌,使激素 X 的水平升高。      1

中五生物科練習WS07參考答案

WS07參考答案

中五生物科練習WS06參考答案

1.
a     感受器皮膚的溫度感受器                                                                        1
      效應器手臂肌肉                                                                                        1
b     皮膚的溫度感受器探測到高溫,產生神經脈衝。                                          1
      神經脈衝沿P傳遞至脊髓,然後經QR,傳遞至手臂肌肉。                        1
      手臂肌肉收縮,令手臂抽起。                                                                       1
c     大腦                                                                                                           1
d     神經脈衝不能到達手臂肌肉,因此美妮不會把手縮回。                                1
      神經脈衝仍能到達腦/大腦,因此她會感到痛楚。                                         1
e     這個動作是沒有意識的不隨意的,而隨意動作是有意識的。                   1
      這個動作是天生的,而隨意動作是經學習得來的。                                     1
      這個動作是有固定形式的,而隨意動作可產生不同的反應。                        1
      這個動作較快,而隨意動作則可快可慢。任何兩項)                                  1

2.
a      P:灰質                                                                                                  1
                Q:白質                                                                                                 1
                R:小腦                                                                                                 1
                S:延髓                                                                                                  1
        b      脊髓                                                                                                        1
c      S/延髓                                                                                                  1

3.
a      突觸                                                                                                        1
        b      神經遞質從軸突末端釋放出來,                                                        1
                然後藉擴散越過突觸。                                                                        1

                神經遞質刺激下一個神經元的樹突產生神經脈衝。                        1

中五生物科練習WS05參考答案

WS05參考答案

1      a     
 










                繪圖正確顯示胚芽鞘X垂直向上生長                                                               1
                繪圖正確顯示胚芽鞘Y彎向左方生長                                                               1
b      光導致胚芽鞘頂端裏控制向光反應的物質不平均地分佈。                            1
        瓊脂塊背光一側裏該物質的濃度較高。                                                            1
        由於該物質的濃度較高,胚芽鞘背光一側生長得較快,於是胚芽鞘彎向光源生長。                                                                                                                                1

2      a      生長素濃度上升時,胚芽鞘的彎曲角度增加至頂點。                                          1
瓊脂塊內生長素的濃度愈高,進入胚芽鞘左側的生長素愈多,結果左側生長得較快,
胚芽鞘較彎。                                                                                                          1
生長素濃度進一步上升時,胚芽鞘的彎曲角度開始減少。                                  1
更高濃度的生長素刺激胚芽鞘左側生長的作用較高濃度的生長素小。                        1

b    避免光影響生長素在胚芽鞘的運動。                                                                    1



中五生物科練習WS03參考答案

1      a      虹膜的環肌放鬆而放射肌收縮,                                                                        1
                使瞳孔擴張。                                                                                                        1
        b      讓更多光線進入眼球,                                                                                        1
                以刺激感光細胞產生神經脈衝。                                                                        1

        c
                每個時段的曲線形狀正確                                                                               1 ´ 4
2
       
感光細胞的種類
沒有感光細胞
視錐細胞
在視網膜上的位置
視神經離開眼球的位置
視網膜中央
影像在這裏形成後會怎樣?
不會發出神經脈衝
發出神經脈衝,神經脈衝傳遞到腦
                                                                                                                                           1 ´ 3

3      a      i       我們可以看見在位置P形成的影像,但不能看見在位置Q形成的影像。    1
                        視網膜上的位置P(黃點)含有感光細胞,可以探測影像,但位置Q(盲點)
沒有任何感光細胞。                                                                                      1
ii      我們可以清楚看見在位置P形成的影像的顏色,但不能清楚看見在位置R形成
的影像的顏色。                                                                                              1
視網膜上的位置P(黃點)含有大量視錐細胞,可以有效地探測顏色,但位置R
只有少量視錐細胞。                                                                                      1
        b      i       晶體                                                                                                                 1
ii      變得混濁的構造Y(晶體)會把光散射,/較少光聚焦在視網膜上,                1
                影像因此變得模糊不清。                                                                               1
                iii     人工替代品的曲率是固定的,在看近物時曲率不能增加,
把物件的光線聚焦。                                                                                      1

佩戴凹透鏡可以使來自近物的光線在進入眼球前先會聚。                          1