CN204650877U - The oxygenous experimental provision of photosynthesis - Google Patents
The oxygenous experimental provision of photosynthesis Download PDFInfo
- Publication number
- CN204650877U CN204650877U CN201520171043.6U CN201520171043U CN204650877U CN 204650877 U CN204650877 U CN 204650877U CN 201520171043 U CN201520171043 U CN 201520171043U CN 204650877 U CN204650877 U CN 204650877U
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- syringe
- rubber plug
- clear vial
- oxygenous
- experimental provision
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Abstract
The oxygenous experimental provision of a kind of photosynthesis, is characterized in that: described experimental provision is made up of clear vial, rubber plug and syringe; Described clear vial is in order to fill water and pasture and water, described rubber stopper seal is at the bottleneck of described clear vial, the thickness of described rubber plug is less than the length of described syringe needle, and the syringe needle puncture of described syringe, on described rubber plug, communicates to make the inner chamber of syringe and clear vial.The piston of syringe is outwards passed by the gas produced, oxygenous how many directly perceived visible; Take off syringe, aim at the batten of band Mars, slowly extrapolated gas, can verify whether be oxygen, the gas in syringe does not need once to be finished, and also can continue the oxygen in receiving bottle, and very convenient many classes are repeated experiment; Pluggable two syringes on rubber plug, collect gas and the more convenient operation verifying oxygen.Have device simple, be easy to assemble, easy to operate, be beneficial to the many classes of advantages repeating to test, promotion prospect is wide.
Description
Technical field
The utility model relates to a kind of Bioexperiment instruments used for education, particularly verifies the oxygenous experimental provision of photosynthesis.
Background technology
In existing biology teaching in junior middle school, the oxygenous experimental provision of checking photosynthesis is such, appropriate hornwort (or the pasture and water such as black algae, water silk floss) is placed in the beaker of filled with water, a glass funnel on hornwort falls to cover, filler neck overlaps the test tube of a filled with water, after illumination a period of time, take off test tube, test tube mouth is inserted with the batten of band Mars, the gas collected can make the batten resume combustion of band Mars, illustrate that the gas collected in test tube is oxygen, prove that photosynthesis produces oxygen.This experiment overall process need complete in water, and when collecting oxygen with test tube, the air discharge process of test tube interior is difficult to operation; When taking off test tube, live test tube mouth, inverted tubes by thumb press, test tube mouth upwards just can be tested, and the amount of oxygen needed is more, more time-consuming, this experimental implementation process is loaded down with trivial details, not easily success.
Utility model content
For the deficiency of troublesome poeration in above-mentioned prior art, the purpose of this utility model is to provide a kind of easy to operate photosynthesis oxygenous experimental provision.
The technical scheme that the utility model adopts is: the oxygenous experimental provision of a kind of photosynthesis, is characterized in that: described experimental provision is made up of clear vial, rubber plug and syringe; Described clear vial is in order to fill water and pasture and water, described rubber stopper seal is at the bottleneck of described clear vial, the thickness of described rubber plug is less than the length of described syringe needle, and the syringe needle puncture of described syringe, on described rubber plug, communicates to make the inner chamber of syringe and clear vial.
Described clear vial is the beverage bottle of plastic material or glass material.
After adopting said structure, can use as follows:
1, appropriate hornwort (or the pasture and water such as black algae, water silk floss) is placed in the clear vial of filled with water (draining air), if Enhancement test effect, water can be changed into the NaHCO3 solution of massfraction 0.1%.
2, with the needle pierces rubber plug of syringe front end, the piston of syringe is pushed into bottom, with the air in Inside Syringe, by rubber plug together with the syringe jam-pack of grafting in the bottleneck of clear vial.In the process of jam-pack rubber plug, to make water unnecessary in clear vial can flow in syringe along syringe needle, thus ensure that rubber plug closely can be connected to bottle mouth position.
3, clear vial is put irradiate in the sun, the gas produced with syringe collecting pasture and water photosynthesis.
4, after finding that the piston of syringe is outwards passed by the gas produced, take off syringe, aim at the batten of band Mars with the syringe needle of syringe, gently inwardly promote piston, release the gas in syringe, the whether resume combustion of the batten of observation band Mars.
The beneficial effects of the utility model are: the piston of syringe is outwards passed by the gas produced, oxygenous how many directly perceived visible; Take off syringe, aim at the batten of band Mars, slowly extrapolated gas, can verify whether be oxygen, the gas in syringe does not need once to be finished, and is plugged into clear vial and also can continues to receive oxygen, and very convenient many classes are repeated experiment; Also pluggable two syringes on the rubber plug of bottleneck, collect the more convenient operation of gas and checking oxygen.Have device simple, be easy to assemble, easy to operate, be beneficial to the many classes of advantages repeating to test, promotion prospect is wide.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
In figure: 1 clear vial, 2 water, 3 pasture and water, 4 rubber plugs, 5 syringe needles, 6 syringes.
Embodiment
As shown in Figure 1, water 2 is filled put into pasture and water 3 (as hornwort or black algae, water silk floss etc.) in clear vial 1 after; By syringe needle 5 pierces through rubber stopper 4 of syringe 6 front end, then rubber plug 4 is sealed in bottle mouth position together with syringe 6; For thoroughly draining the air of the inside, aforesaid operations preferably completes in underwater.Clear vial 1 is put and irradiates in the sun, just can collect with syringe 6 oxygen that photosynthesis produces.
Claims (2)
1. the oxygenous experimental provision of photosynthesis, is characterized in that: described experimental provision is made up of clear vial, rubber plug and syringe; Described clear vial is in order to fill water and pasture and water, described rubber stopper seal is at the bottleneck of described clear vial, the thickness of described rubber plug is less than the length of described syringe needle, and the syringe needle puncture of described syringe, on described rubber plug, communicates to make the inner chamber of syringe and clear vial.
2. the oxygenous experimental provision of photosynthesis as claimed in claim 1, is characterized in that: described clear vial is the beverage bottle of plastic material or glass material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520171043.6U CN204650877U (en) | 2015-03-25 | 2015-03-25 | The oxygenous experimental provision of photosynthesis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520171043.6U CN204650877U (en) | 2015-03-25 | 2015-03-25 | The oxygenous experimental provision of photosynthesis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204650877U true CN204650877U (en) | 2015-09-16 |
Family
ID=54103596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520171043.6U Expired - Fee Related CN204650877U (en) | 2015-03-25 | 2015-03-25 | The oxygenous experimental provision of photosynthesis |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204650877U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109338426A (en) * | 2018-08-31 | 2019-02-15 | 北京曙光航空电气有限责任公司 | A kind of water filling guard method of part inner wall plating part |
-
2015
- 2015-03-25 CN CN201520171043.6U patent/CN204650877U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109338426A (en) * | 2018-08-31 | 2019-02-15 | 北京曙光航空电气有限责任公司 | A kind of water filling guard method of part inner wall plating part |
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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: 20150916 Termination date: 20160325 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |