Cell membrane flow mosaic dynamic model capable of being split and combined

Abstract

The utility model relates to a detachable and combinable cell membrane flow inlay dynamic model, which comprises a plurality of arc-shaped substrates which are detachably connected end to end to form an annular structure; the first aluminum strips are arranged on the arc-shaped base plates in the circumferential direction of the arc-shaped base plates at equal intervals and are close to the inner side edges of the arc-shaped base plates; and the second aluminum strips are arranged on the arc-shaped substrates at equal intervals in the circumferential direction of the arc-shaped substrates and are close to the outer side edges. According to the detachable and combinable cell membrane flow inlay dynamic model designed by the utility model, through the plurality of detachable and combinable arc-shaped substrates, components of a cell membrane can be intuitively and three-dimensionally displayed, and each arc-shaped substrate unit can be independently assembled, so that group teaching and student practice operation are facilitated; meanwhile, all the arc-shaped substrate units can be quickly and conveniently spliced and combined into a complete cell membrane model of an annular structure, overall display can be conveniently carried out on magnetic surfaces such as a blackboard in a classroom, and the overall structure of the cell membrane is visually presented.

Description

TECHNICAL FIELD

[0001] The utility model relates to teaching demonstration model technical field, especially a cell membrane flow mosaic dynamic model of split combination. BACKGROUND

[0002] The cell membrane is an important component of the cell, and its structure and function are crucial to the normal physiological activities of the cell. The cell membrane flow mosaic model is a widely accepted theoretical model for describing the structure of the cell membrane. The model believes that the cell membrane is composed of a phospholipid bilayer, and protein molecules are distributed in the phospholipid bilayer in the form of mosaic, chimeric or penetration, and there are also molecules such as cholesterol, which together constitute the complex structure of the cell membrane.

[0003] In traditional biology teaching, teachers usually explain the cell membrane flow mosaic model in the following ways:

[0004] Two-dimensional pictures in textbooks: Textbooks usually provide two-dimensional pictures of the cell membrane flow mosaic model, supplemented by written descriptions, to help students understand its structure. However, two-dimensional pictures are difficult to clearly show the three-dimensional structure and dynamic characteristics of the cell membrane, making it difficult for students to form a clear impression.

[0005] Oral explanation by teachers: Teachers explain the composition and structural characteristics of the cell membrane through oral explanation, but due to the abstract and complex structure of the cell membrane, oral description is difficult for students to understand deeply. INVENTION CONTENT

[0006] To solve the above problems, the utility model provides a split combination cell membrane flow mosaic dynamic model that can visually and stereoscopically show the composition of the cell membrane.

[0007] To achieve the above purpose, the split combination cell membrane flow mosaic dynamic model designed by the utility model comprises:

[0008] A plurality of arc-shaped substrates, which are detachably connected at the head and tail to form a ring structure;

[0009] A plurality of first aluminum strips are arranged equidistantly along the ring direction of the arc-shaped substrate on each arc-shaped substrate near the inner side edge;

[0010] A plurality of second aluminum strips are arranged equidistantly along the ring direction of the arc-shaped substrate on each arc-shaped substrate near the outer side edge;

[0011] A plurality of phospholipid molecule units, each of which comprises a foam ball and two twisted rods, the foam ball is inserted on the first aluminum strip and the second aluminum strip as the hydrophilic head of the phospholipid molecule, the twisted rod is inserted on the foam ball as the hydrophobic tail of the phospholipid molecule, and the twisted rod is located between the first aluminum strip and the second aluminum strip to form a phospholipid bilayer model;

[0012] A plurality of protein models made of super-light clay are plastically arranged on the phospholipid bilayer model.

[0013] A plurality of cholesterol models made of color card paper cutting are fixed on the phospholipid bilayer model.

[0014] Wherein, each of the arc-shaped base plates is provided with a first magnetic sticker on the side away from the first aluminum strip and the second aluminum strip.

[0015] Preferably, a ball socket is formed on the opposite side wall of each adjacent arc-shaped base plate, and a double-ball head connecting rod is rotatably connected in the two ball sockets.

[0016] Preferably, the ball socket is formed near the inner edge of the arc-shaped base plate.

[0017] Preferably, a second magnetic sticker is attached to the surface of the cholesterol model, and a first magnet is arranged in the foam ball to attract the second magnetic sticker.

[0018] Preferably, the number of arc-shaped base plates is eight, and the eight arc-shaped base plates are connected end to end to form a circular ring structure.

[0019] Preferably, a second magnet is embedded in the opposite side wall of each adjacent arc-shaped base plate, and the second magnet is arranged near the outer edge of the arc-shaped base plate.

[0020] Preferably, a cloth cover is provided on the surface of the foam ball.

[0021] Preferably, the arc-shaped base plate is made of transparent material.

[0022] The detachable and combined cell membrane flow mosaic dynamic model can intuitively and stereoscopically display the components of the cell membrane, each arc-shaped base plate unit can be independently assembled, which is convenient for small group teaching and student practical operation; meanwhile, each arc-shaped base plate unit can be quickly and conveniently spliced and combined into a complete cell membrane model with a ring structure, which is convenient for overall display on the blackboard or other magnetic surfaces in the classroom, and intuitively presents the overall structure of the cell membrane. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 is a detachable combination cell membrane flow mosaic dynamic model structure schematic diagram provided by the embodiment of the application.

[0024] Figure 2 is an arc-shaped substrate structure schematic diagram provided by the embodiment of the application.

[0025] Figure 3 is a ball socket and double ball head connecting rod cooperation structure schematic diagram provided by the embodiment of the application.

[0026] Figure 4 is a foam ball structure cross-sectional view provided by the embodiment of the application.

[0027] Among them: arc-shaped substrate 10, first magnetic paste 11, ball socket 12, double ball head connecting rod 13, second magnet 14, first aluminum strip 20, second aluminum strip 30, phospholipid molecule unit 40, foam ball 41, first magnet 411, cloth cover 412, twist stick 42, protein model 50, cholesterol model 60, second magnetic paste 61. DETAILED DESCRIPTION

[0028] The preferred embodiments of the application are described below with reference to the accompanying drawings, and it should be understood that the preferred embodiments described herein are only used to illustrate and explain the application, and are not used to limit the application.

[0029] As shown in Figure 1 The detachable combination cell membrane flow mosaic dynamic model described in the embodiment is mainly used to display the structure and function of the cell membrane in biological teaching. The model comprises a plurality of arc-shaped substrates 10, a plurality of first aluminum strips 20, a plurality of second aluminum strips 30, a plurality of phospholipid molecule units 40, a plurality of protein models 50, a plurality of cholesterol models 60 and a first magnetic paste 11.

[0030] Among them, the plurality of arc-shaped substrates 10 are detachably connected at the head and tail to form a ring structure. In the embodiment, the arc-shaped substrate 10 can be made of transparent acrylic plate material to facilitate students to observe the internal structure of the model. The connection structure of the detachable connection between the arc-shaped substrates 10 will be described in subsequent embodiments.

[0031] A plurality of first aluminum strips 20 are arranged equidistantly along the circumferential direction of each arc-shaped substrate 10 near the inner side edge; a plurality of second aluminum strips 30 are arranged equidistantly along the circumferential direction of each arc-shaped substrate 10 near the outer side edge. In this embodiment, the aluminum strips have a certain flexibility, which can effectively fix the phospholipid bilayer and make the entire model have a certain fluidity, simulating the structural characteristics of the cell membrane. In specific implementation, the first aluminum strips 20 and the second aluminum strips 30 can be fixed on the arc-shaped substrate 10 by means of screws, glue, etc. The equidistant arrangement of the first aluminum strips 20 and the second aluminum strips 30 is to make the structure more regular.

[0032] A plurality of phospholipid molecule units 40, each of which includes a foam ball 41 and two twisted rods 42, the foam ball 41 being inserted on the first aluminum strip 20 and the second aluminum strip 30 as the hydrophilic head of the phospholipid molecule, the twisted rod 42 being inserted on the foam ball 41 as the hydrophobic tail of the phospholipid molecule, and the twisted rod 42 being located between the first aluminum strip 20 and the second aluminum strip 30 to form a phospholipid bilayer model. In specific implementation, the foam ball 41 is made of light polystyrene (EPS) material, and the twisted rod 42 is made of iron wire coated with flannel material, which not only simulates the structure of the phospholipid molecule, but also facilitates operation and assembly.

[0033] A plurality of protein models 50 made of super-light clay are plastically arranged on the phospholipid bilayer model. Super-light clay has good plasticity and can be kneaded into various shapes, facilitating the simulation of different forms of proteins on the phospholipid bilayer, including inlay, chimeric and penetration, etc., and the color of the protein model can be set to multiple different colors to highlight its diversity.

[0034] A plurality of cholesterol models 60 are made of colored card paper cuttings and are fixed on the phospholipid bilayer model to simulate the role of cholesterol molecules in the cell membrane, i.e. to regulate the fluidity of the cell membrane. In this embodiment, the colored card paper is made of hard card paper, which is convenient for cutting and shaping.

[0035] Each of the arc-shaped substrates 10 is provided with a first magnetic sticker 11 on the side away from the first aluminum strip 20 and the second aluminum strip 30. The first magnetic sticker 11 is used to attract the arc-shaped substrate 10 to a magnetic blackboard or other magnetic display surface, facilitating teaching display.

[0036] In summary, the structure design of the first aluminum strip 20 and the second aluminum strip 30 penetrating and fixing the foam ball 41 makes the thickness section of the phospholipid bilayer model exhibit in a way parallel to the plate surface of the arc-shaped base plate 10, which not only has a wider exhibition area but also has a more stable structure. At the same time, through the multiple detachable and combinable arc-shaped base plates 10, this model can intuitively and stereoscopically show the components of the cell membrane, which is convenient for group teaching and student practical operation, thereby effectively improving the teaching effect and learning experience

[0037] In some embodiments, as shown in Figure 2 、 Figure 3 Each of the opposite side walls of adjacent arc-shaped base plates 10 is provided with a ball socket 12, and a double-ball joint connecting rod 13 is rotatably connected in the two ball sockets 12. The two ends of the double-ball joint connecting rod 13 are ball heads matched with the ball sockets 12. In this embodiment, as shown in Figure 1 The number of arc-shaped base plates 10 is eight, and the eight arc-shaped base plates 10 are connected end to end to form a circular ring structure.

[0038] Specifically, the design of this double-ball joint connecting rod 13 realizes the movable connection between adjacent arc-shaped base plates 10, so that the originally flat ring structure can be changed into a three-dimensional structure similar to a spherical cap or a circular truncated cone. In actual teaching scenarios, especially in group cooperative learning, this design has more advantages. For example, when students sit around a round table for group discussion, the originally flat ring model can be adjusted to a three-dimensional structure similar to a spherical cap or a circular truncated cone, so that the model faces all students, and each student can clearly observe each part of the cell membrane model, which facilitates their discussion, exchange and interaction.

[0039] In some embodiments, as shown in Figure 2 The ball socket 12 is arranged near the inner side edge of the arc-shaped base plate 10. Arranging the ball socket 12 near the inner side edge of the arc-shaped base plate 10 can reduce the radius when the double-ball joint connecting rod 13 rotates. Under the same rotation angle, a smaller rotation radius means that the edge of the arc-shaped base plate 10 can produce greater displacement, so that the entire model can form a more significant three-dimensional shape (for example, closer to the shape of a spherical cap or a circular truncated cone), which facilitates students to observe from various angles.

[0040] In some embodiments, as shown in Figure 1 、 Figure 4As shown, the surface of the cholesterol model 60 is pasted with a second magnetic sticker 61, and the foam ball 41 is provided with a first magnet 411 which is attracted to the second magnetic sticker 61.

[0041] In some embodiments, as shown in Figure 1 、 Figure 2 As shown, the opposite side walls of the adjacent arc-shaped substrate 10 are embedded with a second magnet 14, which is arranged at a position close to the outer side edge of the arc-shaped substrate 10. When it is necessary to connect a plurality of arc-shaped substrates 10 together to form a ring-shaped structure, the adjacent arc-shaped substrates 10 can be directly brought close to each other, and the adjacent arc-shaped substrates 10 can be firmly connected by the magnetic attraction between the second magnets 14. When it is necessary to disassemble the arc-shaped substrates 10, the arc-shaped substrates 10 only need to be separated by force. This magnetic attraction connection method does not require any tools or complex assembly steps, and not only is simple and convenient to operate, but also enables the model to be quickly unfolded and folded.

[0042] In some embodiments, as shown in Figure 4 As shown, the surface of the foam ball 41 is provided with a cloth cover 412. The cloth cover 412 can effectively protect the foam ball 41 from being squeezed, worn or broken during long-term use and operation, thereby prolonging the service life.

[0043] The detachable and combined cell membrane flow mosaic dynamic model provided by the embodiment can intuitively and stereoscopically show the components of the cell membrane, each arc-shaped substrate unit of which can be independently assembled into a model, facilitating small-group teaching and student practical operation. Meanwhile, the arc-shaped substrate units can be quickly and conveniently spliced and combined into a complete cell membrane model in a ring-shaped structure, which is convenient for overall display on a blackboard or other magnetic surfaces in a classroom, and intuitively presents the overall structure of the cell membrane.

[0044] In the description of the present application, it should be explained that the terms "vertical", "upper", "lower", "horizontal" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0045] In the description of the utility model, still need to explain, unless another explicit provision and limitation, term " set ", " install ", " link ", " connect " should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can indirectly connect through the intermediate medium, can be two elements inside the communication。For ordinary skilled person in the art, can understand the specific meaning of the above-mentioned terms in the utility model according to specific circumstances.

[0046] Finally, it should be noted that: the above only for the preferred embodiments of the utility model and does not limit the utility model, although the utility model is described in detail with reference to the foregoing embodiments, for those skilled in the art, it still can modify the technical scheme recorded in the foregoing embodiments, or equivalent replacement for part of the technical features。Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A detachable and combinable dynamic model of cell membrane fluid mosaic, characterized in that, include: Multiple arc-shaped substrates, which are detachably connected end to end, form a ring structure; Multiple first aluminum strips are equidistantly arranged on each of the arc-shaped substrates near the inner edge along the circumferential direction; Multiple second aluminum strips are equidistantly arranged along the circumference of the arc-shaped substrate near the outer edge of each arc-shaped substrate; multiple phospholipid molecular units, each phospholipid molecular unit including a foam ball and two twisted rods, the foam ball being inserted into the first and second aluminum strips as the hydrophilic head of the phospholipid molecule, and the twisted rods being inserted into the foam ball as the hydrophobic tail of the phospholipid molecule, and the twisted rods being located between the first and second aluminum strips to form a phospholipid bilayer model; Multiple protein models, made of ultralight clay, are plastically mounted on the phospholipid bilayer model; Multiple cholesterol models, cut from colored cardstock, are fixed onto the phospholipid bilayer model; Each of the arc-shaped substrates has a first magnetic sticker on the side opposite to the first aluminum strip and the second aluminum strip.

2. The detachable and combinable dynamic model of cell membrane fluid mosaic according to claim 1, characterized in that, Each of the adjacent arc-shaped substrates has a ball socket on its opposite sidewall. A double ball joint is rotatably connected to each of the two ball sockets. The two ends of the double ball joint are ball heads that match the ball sockets respectively.

3. The detachable and combinable dynamic model of cell membrane fluid mosaic according to claim 2, characterized in that, The ball socket is located near the inner edge of the arc-shaped substrate.

4. The detachable and combinable dynamic model of cell membrane fluid mosaic according to claim 1, characterized in that, The surface of the cholesterol model is covered with a second magnetic sticker, and a first magnet that attracts the second magnetic sticker is disposed inside the foam ball.

5. The detachable and combinable dynamic model of cell membrane fluid mosaic according to claim 1, characterized in that, The number of arc-shaped substrates is eight, and the eight arc-shaped substrates are connected end to end to form a circular structure.

6. The detachable and combinable dynamic model of cell membrane fluid mosaic according to claim 1, characterized in that, A second magnet is embedded on the opposite sidewall of the adjacent arc-shaped substrate, and the second magnet is located near the outer edge of the arc-shaped substrate.

7. The detachable and combinable dynamic model of cell membrane fluid mosaic according to claim 1, characterized in that, The surface of the foam ball is covered with a cloth sleeve.

8. The detachable and combinable dynamic model of cell membrane fluid mosaic according to claim 1, characterized in that, The curved substrate is made of a transparent material.

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