（八）细胞的吸水和失水-分子与细胞[高中生物必修一]

(VIII) Cell Water Uptake and Loss - Molecules and Cells [Senior High School Biology Compulsory Module 1]

李宏 湖北省十堰市郧阳中学

Li Hong Yunyang High School， Shiyan City， Hubei Province

1.细胞失水经由中，细胞液浓度增大。（√）

细胞失水经由中，水从细胞液流出，细胞液浓度增大。

During the process of cell water loss， the concentration of cell sap increases. (√)

张开剩余80%

During cell water loss， water flows out of the cell sap， leading to an increase in its concentration.

2.通过不雅察紫色中央液泡体积大小变化，可估量表皮细胞是处于吸水依然失水状况。（√）

By observing the change in the volume of the purple central vacuole， we can infer whether epidermal cells are in a state of water uptake or water loss. (√)

当液泡体积变大，评释细胞吸水，液泡体积变小，评释细胞失水，kaiyun sports是以通过不雅察紫色中央液泡体积大小变化，可估量表皮细胞是处于吸水依然失水状况。

An increase in the vacuole volume indicates cell water uptake， while a decrease indicates cell water loss. Therefore， we can infer whether epidermal cells are taking up or losing water by observing the volume changes of the purple central vacuole.

3.用吸水纸引流使0.3g/mL蔗糖溶液替换净水，可先后不雅察到质壁划分和规复样式。（×）

用吸水纸引流使0.3g/mL蔗糖溶液替换净水，不错不雅察到质壁划分样式，然则要不雅察到规复样式需要重新用净水替换蔗糖溶液。

Replacing clear water with a 0.3 g/mL sucrose solution via drainage with absorbent paper allows for the successive observation of plasmolysis and deplasmolysis. (×)

Replacing clear water with a 0.3 g/mL sucrose solution via drainage with absorbent paper enables the observation of plasmolysis， but to observe deplasmolysis， the sucrose solution needs to be replaced with clear water again.

4.若领受根尖分生区细胞为材料，质壁划分样式更赫然。（×）

根尖分生区细胞无中央打液泡，弗成发生质壁划分样式。

If meristematic cells of the root tip are used as the experimental material， the plasmolysis phenomenon will be more obvious. (×)

Meristematic cells of the root tip lack a large central vacuole and thus cannot undergo plasmolysis.

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Explorer of Innovative Thinking

Author: Li Hong

Yunyang High School， Shiyan City， Hubei Province

February 13， 2026

发布于：湖北省

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