討論兩題Brooker的題目~ - 考試

Regina avatar
By Regina
at 2011-04-26T02:12

Table of Contents


1.Which of the following is common to both extracellar and intracellular
digestion?

A> the ability to phagocyte food particles.
B> the speed of digestion
C> the presence of a digestive cavity
D> the ability to consume both large and small food items
E> none of all

這題答案為A

想請問一下,對攝食而言在胞內消化有吞食作用我可以理解,但胞外消化會有
吞食作用嗎?

食物在消化道消化為小分子後不就送如血管,之後由血液運輸到各細胞,在經主被動運
輸入細胞內做代謝以供能嗎?(Marcophage雖有吞食作用但與胞內外消化是兩碼子,暫不
論之)



2.Which of the following is not an advantage of extracellular digestion?

A> The interior of cells is protected from hydrolytic enzymes.
B> Very large portion of food can be consumed at once and digested over a
long period of hours to weeks.
C> Specialized regions of the cavity can segregate the digested food from
nondigested food.
D> Digestion can be regulated by hormones.
E> Vacuoles allow for direct phagocytosis by individual cells.

這題答案為E;但我想不出解釋的理由~

希望和大家討論看看喔~ 謝謝大家~

--
Tags: 考試

All Comments

生物問題請教

Yuri avatar
By Yuri
at 2011-04-24T21:51
1.Which process hinder clarification of the deepest branchings in a phylogenetic tree that depicts the origins of the tree domains? (A)binary fission ( ...

黃志清老師的書

Ingrid avatar
By Ingrid
at 2011-04-24T19:44
黃志清老師的 普通生物學精輯 普通生物學試題集錦上下 欲出售者請站內信 並告知價錢 謝謝 - ...

後中歷屆試題(含詳解)

Odelette avatar
By Odelette
at 2011-04-24T19:17
如題 因為我人在花蓮 所以不知道要去哪裡拿這個資訊 索性直接用徵求的方式 如果有人願意割愛的 麻煩請站內信給我 我會跟你聯絡~ - ...

考後醫的勝算?

Tracy avatar
By Tracy
at 2011-04-22T00:26
※ 引述《ckmarkoh (阿傑)》之銘言: : 小弟冒昧在此發問 想知道自己在眾多考生中的定位如何 : 我是台大電機系的學生 : 有修過生命科學院及醫學院(非醫科牙科)開的課程 : 例如 普通生物學 動物生理學 有機化學... : 成績都在95分以上 : 即將升大四 正在猶豫未來要做甚麼 : 由於對生醫工 ...

hi~大家好我叫阿甘

Linda avatar
By Linda
at 2011-04-21T02:20
~( ̄▽ ̄)~HELLO~( ̄▽ ̄)~        ID:hyuck        暱稱:阿甘        拿手科目:普通生物學        目標:兩年考上        現況:台大博士班休學中        心裡的話:念了4年護理 兩年 ...