CN202939850U

CN202939850U - Teaching model for demonstrating how bacteriophage invades into bacterium

Info

Publication number: CN202939850U
Application number: CN 201220264497
Authority: CN
Inventors: 刘慧芳; 潘一; 杨双春; 王健; 王战勇; 苏婷婷
Original assignee: Liaoning Shihua University
Current assignee: Liaoning Shihua University
Priority date: 2012-06-04
Filing date: 2012-06-04
Publication date: 2013-05-15
Anticipated expiration: 2022-06-04

Abstract

The utility model relates to a simulation teaching device for demonstrating how a bacteriophage invades into a bacterium, which comprises a T4 bacteriophage model and an Escherichia coil strain model, wherein the T4 bacteriophage model is composed of a protein head part module and a hollow protein tail part module, and the protein head part module contains a bacteriophage DNA molecule module; and the Escherichia coil strain model is composed of simulation flagella, a capsule, a cell wall, a cell membrane, an Escherichia coil DNA molecule, a ribosome, and a cytoplasm module, wherein the capsule, the cell membrane and the cell wall are all provided with a small hole, thereby being facilitating the DNA molecule module of the bacteriophage model to move into the Escherichia coil strain model. The overall base plate of the model and the cytoplasm module are provided with a plurality of tracks facilitating movement of the modules, and baffles hiding small protein shell models.

Description

The demonstration model for teaching of bacteriophage invasion bacterium

Technical field

The utility model relates to a kind of teaching demonstration apparatus, especially relates to a kind of simulation teaching device structure of how to invade bacterium for the demonstration bacteriophage.

Background technology

At present, the data that is used for the bacteriophage invasion bacterium of teaching demonstration, it is all character narrate, or simple schematic diagram, make the object of giving lessons beyond one's depth, even may not memory and profound or understood also, and the teacher also needs by facilities such as computer, projector in the process of demonstration, in case these facilities go wrong, just can not demonstrate.

The utility model content

The utility model is that the model that exists true is in kind, and in the process of giving lessons, teacher can be interactive with the student, breaks away from stiff character narrate.The student can do it yourself to operate whole process, both can produce dense learning interest, can deepen visual impression again, makes it thorough to knowledge understanding, memory and profound.

For the quality of instruction that improves the teacher and student's classroom efficiency, the utility model provides the apparatus for demonstrating of a kind of bacteriophage invasion bacterium of emulation, and this apparatus for demonstrating is cheap, and is with manual operation, easy to use.

The utility model is achieved through the following technical solutions: the demonstration model for teaching of bacteriophage invasion bacterium comprises T4 bacteriophage model and coli somatic model, both jointly be embedded on base plate, wherein, the bacteriophage model is coated by the protein coat model, specifically formed by protein head module and protein hollow tail module, described protein head module is the hexahedron of hollow, and the phage DNA that inside comprises the double helix shape divides submodule; The coli somatic model is comprised of flagellum, pod membrane, cell membrane, cell membrane, e. coli dna molecule, ribosomes, the tenuigenin module of simulation, and e. coli dna divides submodule to be comprised of the module fragment of a plurality of double helix shapes; The pod membrane of coli somatic model, cell membrane and cell membrane module have one to allow phage DNA to divide submodule to enter the aperture of coli somatic module; Have on base plate and tenuigenin module and can satisfy the track that bacteriophage model and phage DNA divide submodule, e. coli dna molecular model to move, and the baffle plate of hiding little protein coat model is arranged; Phage DNA divides submodule, can separate along the track on base plate by the protein tail module of hollow; Form the module fragment that e. coli dna divides the double helix shape of submodule, divide submodule the same size with phage DNA, and can be along the rail moving on the tenuigenin module.

The utility model is simple in structure, and material easily obtains, and makes simple, manually easy to use; Can make the student to content stay deeply, vividly, impression intuitively, improve the efficient of giving lessons.

Description of drawings

The utility model is described in further detail below in conjunction with accompanying drawing, and Fig. 1 is structural representation of the present utility model.

In figure, 1-bacteriophage model, 2-coli somatic model, 3-bacteriophage head module, the 4-phage DNA divides submodule, 5-bacteriophage tail module, and the 6-e. coli dna divides submodule, 7-ribosomes module, 8-cell membrane module, 9-cell membrane module, 10-module flagellum, the 11-aperture, 12-blocks paper slip, and 13,14,15,16-track, the 17-base plate, 18-pod membrane, 19-tenuigenin module.

Embodiment

For making the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with the accompanying drawing in the utility model, the technical scheme in the utility model is clearly and completely described.

As shown in the figure, on rectangular device base plate, bacteriophage model (1) and coli somatic model (2) are installed successively, when beginning to demonstrate bacteriophage model (1) invasion coli somatic model (2), can manually be adsorbed onto bacteriophage model (1) on the pod membrane model (8) of Escherichia coli model along track (13); Phage DNA divide submodule (4) just the protein tail module (5) by hollow pass aperture (11) along track (13) and enter in coli somatic model (2); The phage DNA that enters in coli somatic model (2) divides submodule (4) just to begin to utilize e. coli dna to divide submodule (6) to copy, namely manually e. coli dna being divided submodule (6) to be divided into several sections divides submodule (4) size identical module fragment with phage DNA, respectively along track (14,15,16) leave original position, namely become a plurality of phage DNAs that copy formation and divide submodule; A plurality of phage DNAs that copy formation divide submodule, comprise that original phage DNA divides submodule (4), formed the protein coat of oneself by the ribosomes module (7) in the coli somatic model, manually with track (13,14,15,16) scraps of paper (12) that block on side are taken away, thereby make little protein coat model expose; At last, the phage DNA module that manually analoging reproduction is formed enters into protein coat model head along track (13,14,15,16) by the model protein shell hollow afterbody that has just formed, and is assembled into complete bacteriophage.

Claims

1. bacteriophage is invaded the demonstration model for teaching of bacterium, comprise T4 bacteriophage model and coli somatic model, both jointly be embedded on base plate, wherein, the bacteriophage model is coated by the protein coat model, specifically be comprised of protein head module and protein hollow tail module, described protein head module is the hexahedron of hollow, and the phage DNA that inside comprises the double helix shape divides submodule; The coli somatic model is comprised of flagellum, pod membrane, cell membrane, cell membrane, e. coli dna molecule, ribosomes, the tenuigenin module of simulation, and e. coli dna divides submodule to be comprised of the module fragment of a plurality of double helix shapes; Have on base plate and tenuigenin module and can satisfy the track that bacteriophage model and phage DNA divide submodule, e. coli dna molecular model to move, and the baffle plate of hiding little protein coat model is arranged.

2. the demonstration model for teaching of bacteriophage invasion bacterium according to claim 1, is characterized in that pod membrane, cell membrane and the cell membrane module of described coli somatic model has one to allow phage DNA to divide submodule to enter the aperture of coli somatic module.

3. the demonstration model for teaching of bacteriophage invasion bacterium according to claim 1, is characterized in that described phage DNA divides submodule, can separate along the track on base plate by the protein tail module of hollow.

4. bacteriophage according to claim 1 is invaded the demonstration model for teaching of bacterium, it is characterized in that described composition e. coli dna divides the module fragment of the double helix shape of submodule, divide submodule the same size with phage DNA, and can be along the rail moving on the tenuigenin module.