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Demonstrator for plant cytoplasm flowing

A technology of cytoplasm and demonstrator, applied in the field of teaching supplies, to achieve the effect of improving learning interest and teaching effect

Inactive Publication Date: 2015-07-08
何小科
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] In middle school biology teaching, there is no plant cytoplasm flow demonstration instrument as visual teaching aid

Method used

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  • Demonstrator for plant cytoplasm flowing

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Experimental program
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Effect test

Embodiment Construction

[0010] Refer to attached figure 1 Cell 1 is made of transparent plexiglass plate material with a thickness of 2 mm and is 15 × 20 × 30 cm. Chloroplast 2 is made of green plastic with a specific gravity of 0.9. The mixed solution of 0.9 is filled with cell 1, and the vacuole 4 is made into an ellipse with a short axis of 10 centimeters and a long axis of 20 centimeters with a specific gravity of 0.9 transparent plastic, the nucleus 11 is a hollow plastic ball of φ5 centimeters, and the electric heating tube 5 is a common 300-watt electric heating tube. The electric wire 6 is an ordinary 4 square millimeter two-wire electric wire, the electric plug 7 is a 10-amp second-wire electric plug, the seat plate 8 is a 4×20×30 cm wooden board, the liquid injection pipe 9 is a φ1 cm long 2 cm plastic tube, and the rubber plug 10 is The rubber stopper of distribution liquid pipe 9, power regulator 12 is 0-1000 ohm variable resistance.

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Abstract

A demonstrator for plant cytoplasm flowing belongs to the field of teaching aids. A hollow cuboid cell made of transparent organic glass plates is filled with a cell sap, namely a transparent tetrachloroethylene and ethanol mixed liquor; green cylindrical plastic-grain chloroplasts of the same proportion and an oval spherical plastic vacuole are suspended in the cell sap; a bright-yellow plastic hollow sphere as a nucleus is fixed at the upper end of the vacuole; an electrothermal tube is fixed at one side of the internal lower portion of the cell, connected with two wires and thus led out of one side of the cell; the tail ends of the wires include a two-wire electric plug; a cylindrical liquid inject tube with a rubber plug is arranged at a bottom corner of the cell; the bottom of the cell is fixed to a rectangular wooden base board; and an electric quantity regulator which is connected in series to a circuit is mounted on the base board. The demonstrator as a teaching aid can be used to visually demonstrate flowing of plant cytoplasm, the chloroplasts flow in a cycled manner in the cell sap, and the learning interests of students and the teaching effect can be both improved.

Description

1. Technical field [0001] A plant cytoplasmic flow demonstrator belongs to the field of teaching supplies, and relates to the structure of a cytoplasmic flow model, in particular to the structure of a cytoplasmic flow model that is heated by an electric heating tube to realize cytoplasmic flow. 2. Background technology [0002] In middle school biology teaching, there is no plant cytoplasm flow demonstration instrument as visual teaching aid. 3. Contents of the invention [0003] This product is a demonstration instrument invented by electric heating tube to realize cytoplasmic flow, which is used as visual teaching aid in biology teaching. [0004] 1. Technical solution [0005] The plant cytoplasm flow demonstration instrument is to use a transparent plexiglass plate to fill the empty rectangular cylindrical cells with a transparent and colorless mixture of tetrachlorethylene and ethanol as the cell liquid, and suspend many green cylindrical plastics with the same speci...

Claims

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Application Information

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IPC IPC(8): G09B23/38
CPCG09B23/38
Inventor 何小科
Owner 何小科
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