CN203931266U - Mitotic chromosome change demonstration teaching aid - Google Patents
Mitotic chromosome change demonstration teaching aid Download PDFInfo
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- CN203931266U CN203931266U CN201420261185.7U CN201420261185U CN203931266U CN 203931266 U CN203931266 U CN 203931266U CN 201420261185 U CN201420261185 U CN 201420261185U CN 203931266 U CN203931266 U CN 203931266U
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- chromosome
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- square framework
- analog cell
- simulation
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Abstract
The utility model discloses a kind of mitotic chromosome change demonstration teaching aid, comprise analog cell wall (1), simulation chromosome (2), analog cell plate (4), it is characterized in that: described analog cell wall (1) is set to square framework, be that the middle part of square framework left and right edge is provided with draw-tube (5), the upper connecting analog cell plates (4) of described left side draw-tube (5), on described draw-tube (5), be provided with the duct that connects square framework inside, on described right side draw-tube (5), be provided with the duct that analog cell plate (4) passes through, the middle part of the edge up and down of described square framework is provided with stay hook (6), described square framework inside is provided with simulation chromosome (2), described simulation chromosome (2) is set to the plastic strip that middle part is connected by double buckle (7), described is the silk thread of the upper connecting analog spindle fiber of double buckle (7).The utility model has mainly been demonstrated chromosomal change procedure in mitosis, demonstrates more intuitively, helps classmates better to understand.
Description
Technical field
The utility model relates to teaching aid field, is specially a kind of mitotic chromosome change demonstration teaching aid.
Background technology
in Senior Biology course, mitosis is one of important content, mitosis is a content that microcosmic is abstract, in present teaching, the general figure that draws each period that adopts helps classmates' understand and master, but figure is static map, can not present chromosomal dynamic change, student understands still certain difficulty.
Summary of the invention
The utility model, for above weak point, provides a kind of mitosis demonstration teaching aid, has mainly demonstrated chromosomal change procedure in mitosis, demonstrates more intuitively, helps classmates better to understand.
The utility model solves the technical scheme that its technical matters adopts: a kind of mitotic chromosome change demonstration teaching aid, include analog cell wall, simulation chromosome, analog cell plate, described analog cell wall is set to square framework, be that the middle part of square framework left and right edge is provided with draw-tube, connecting analog cell plates on the draw-tube of described left side, on described draw-tube, be provided with the duct that connects square framework inside, on the draw-tube of described right side, be provided with the duct that analog cell plate passes through, the middle part of the edge up and down of described square framework is provided with stay hook, described square framework inside is provided with simulation chromosome, described simulation chromosome is set to the plastic strip that middle part is connected by double buckle, described is the silk thread of connecting analog spindle fiber on double buckle.
The utility model is provided with cell membrane, simulation chromosome, the analog cell plate of simulation, has well demonstrated chromosomal change procedure in mitosis process.
Be provided with draw-tube, can facilitate analogsimulation cell membrane to increase, simulation chromosome is set to be connected by double buckle, and convenient simulation chromosome replication is with separated;
The utility model by the demonstration that in mitosis, chromosomal change procedure is complete out, helps student better to understand mitotic process, more directly perceived, concrete, understands well.
Accompanying drawing explanation
It shown in Fig. 1, is structural representation of the present utility model;
It shown in Fig. 2, is schematic diagram during chromosome separation in mitosis.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in detail:
As shown be a specific embodiment of the present utility model, a kind of mitotic chromosome change demonstration teaching aid, include analog cell wall 1, simulation chromosome 2, analog cell plate 4, described analog cell wall 1 is set to square framework, be that the middle part of square framework left and right edge is provided with draw-tube 5, connecting analog cell plates 4 on described left side draw-tube 5, on described draw-tube 5, be provided with the duct that connects square framework inside, on described right side draw-tube 5, be provided with the duct that analog cell plate 4 passes through, the middle part of the edge up and down of described square framework is provided with stay hook 6, described square framework inside is provided with simulation chromosome 2, described simulation chromosome 2 is set to the plastic strip that middle part is connected by double buckle 7, described is the silk thread of connecting analog spindle fiber on double buckle 7.
Mitosis prophase, simulation chromosome 2 connects two chromatids by double buckle 7, at random in analog cell wall 1, mid-term, analog cell wall 1 increases, during simulation, by the flexible of draw-tube 5, realize, simulation chromosome 2 is arranged on equatorial plate, there is the position of cell plates in the later stage namely, by silk thread, haul and hang on stay hook 6, then, the chromatid being connected by double buckle 7 is separated, the spindle fiber of being simulated by silk thread slowly pulls to both sides, finally, form cell plates, analog cell plate 4 is divided into two parts by the hole being arranged on draw-tube 5 by analog cell, simulation process is simple, intuitively, good understanding.
Certainly; above-mentioned explanation is not to restriction of the present utility model; the utility model is also not limited in above-mentioned giving an example, and the variation that those skilled in the art make in essential scope of the present utility model, remodeling, interpolation or replacement, also should belong to protection domain of the present utility model.
Claims (1)
1. a mitotic chromosome change demonstration teaching aid, include analog cell wall (1), simulation chromosome (2), analog cell plate (4), it is characterized in that: described analog cell wall (1) is set to square framework, be that the middle part of square framework left and right edge is provided with draw-tube (5), the upper connecting analog cell plates (4) of described left side draw-tube (5), on described draw-tube (5), be provided with the duct that connects square framework inside, on described right side draw-tube (5), be provided with the duct that analog cell plate (4) passes through, the middle part of the edge up and down of described square framework is provided with stay hook (6), described square framework inside is provided with simulation chromosome (2), described simulation chromosome (2) is set to the plastic strip that middle part is connected by double buckle (7), the silk thread of the upper connecting analog spindle fiber of described double buckle (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420261185.7U CN203931266U (en) | 2014-05-21 | 2014-05-21 | Mitotic chromosome change demonstration teaching aid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420261185.7U CN203931266U (en) | 2014-05-21 | 2014-05-21 | Mitotic chromosome change demonstration teaching aid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203931266U true CN203931266U (en) | 2014-11-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420261185.7U Expired - Fee Related CN203931266U (en) | 2014-05-21 | 2014-05-21 | Mitotic chromosome change demonstration teaching aid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203931266U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105825753B (en) * | 2016-05-17 | 2018-08-24 | 郭士安 | A kind of fissional teaching mode of demonstration |
| CN109272825A (en) * | 2018-11-08 | 2019-01-25 | 贵州师范学院 | A kind of teaching aids making method of stomata folding |
-
2014
- 2014-05-21 CN CN201420261185.7U patent/CN203931266U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105825753B (en) * | 2016-05-17 | 2018-08-24 | 郭士安 | A kind of fissional teaching mode of demonstration |
| CN109272825A (en) * | 2018-11-08 | 2019-01-25 | 贵州师范学院 | A kind of teaching aids making method of stomata folding |
| CN109272825B (en) * | 2018-11-08 | 2020-08-04 | 贵州师范学院 | Manufacturing method of teaching aid for air hole opening and closing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141105 Termination date: 20150521 |
|
| EXPY | Termination of patent right or utility model |