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Method for rapidly determining photosynthesis products

A technology of photosynthesis and rapid determination, applied in the field of biological experiments, can solve the problems of different lengths of time for alcohol decolorization, inconsistent leaf thickness, and uneven experimental results, so as to improve experimental skills and scientific literacy, improve classroom efficiency, The effect of improving the core literacy of biology

Pending Publication Date: 2021-11-19
王岳
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] ① Experimental results are uneven
Different types of geraniums have different thicknesses of leaves, which lead to different lengths of time for alcohol decolorization, and the experimental results are uneven;
[0004] ②Classroom is inefficient and dangerous
This pungent smell can cause allergic reactions in individual students and is potentially dangerous

Method used

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  • Method for rapidly determining photosynthesis products
  • Method for rapidly determining photosynthesis products
  • Method for rapidly determining photosynthesis products

Examples

Experimental program
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Effect test

Embodiment 1

[0051] (1) Cultivate mung bean seeds to germinate. Prepare a 26*18cm enamel tray, put a layer of white napkin inside, and spray water with a watering can to soak it, so as to provide sufficient water for the germination of mung bean seeds and prevent the mung bean seeds from falling into the water and lack of oxygen to affect the germination. Select 100 large and plump mung beans, place them evenly on a napkin, and cover the tray with a single layer of soaked white gauze to keep it moist and breathable. Place the mung beans at a room temperature of 25°C for cultivation, and spray an appropriate amount of water into the tray every day to keep the napkin soaked and the white gauze moist. The mung beans begin to germinate in about 1 day, and after 3-4 days, a large amount of mung bean seedlings at the second-leaf stage with a leaf width of 9mm-11mm and long and vigorous growth are obtained.

[0052] (2) Dark treatment. Put the mung bean seedlings at the second-leaf stage in acc...

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Abstract

The invention discloses a method for rapidly determining photosynthesis products. ''A method for decoloring by heating seedling leaves of leguminous plants (especially mung beans) in a water bath without an alcohol lamp'' is used for replacing ''a method for decoloring by heating geranium leaves in a water-proof manner with an alcohol lamp'' to determine the photosynthesis products, namely ''starch'', and light is verified to be a photosynthesis condition. The experiment time is greatly shortened, the experiment process is simplified, the safety and the environmental protection property of the experiment are improved, and the operation is convenient while the experiment efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of biological experiments, in particular to a method for rapidly measuring photosynthesis product starch. Background technique [0002] "Green leaves produce organic matter under light" is an important exploratory experiment in Chapter 4 of Unit 3 of Lu Ke's edition of "Biology" for sixth grade volume two. The textbook uses geranium as an experimental material to explore the conditions of photosynthesis-light and the product-starch. Specific method: firstly darken the geranium plants for 24 hours—cover part of the leaves on a leaf of geranium from the upper and lower sides with a piece of black paper—put the geranium plants in the sun for photosynthesis—take off the leaves for observation—take Alcohol lamp decolorizes leaves by heating alcohol over water - wash off excess alcohol with water in a petri dish - dilute iodine solution for staining - continue to add water to a petri dish, wash off excess iodine ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09B23/38G01N21/82
CPCG09B23/38G01N21/82
Inventor 王岳于珺茜于磊
Owner 王岳
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