Рет қаралды 68,106
This experiment helps us to visualize the bacteria and microorganisms, where, a drop acts as a magnifying glass, on having been crossed by the light of the laser, which is reflected in the drop, doing an approximation of 10.000X.
In the water they live species of bacteria and microorganisms. In this case we might say that the diatomeas or bacilariofitas lives in this one, because they are in marine environments and in lagoons. These are a class of single-cell algae that lack scourges and have two transparent valves very adorned, impregnated with silica that fit one inside other one for his edges as Petri's box. All the diatomeas are photosynthetic and need some organic substances for his growth. In his cloroplastos they contain chlorophyll a and c, betacaroteno and xantofilas that they award a dun - golden coloration. They store his reservations as crisolaminarina (a carbohydrate) and oils. Another serious bacterium the phytoplankton that some of they of them live in sweet waters or lagoons, but in the main marine. Also it is autótrofo and they have the capacity of photosynthetic that is the conversion of luminous energy chemical energy that takes place in the cloroplastos.
More bacteria and microorganisms exist.
Materials
1. A strip of wood of 25x4x1,5cm.
2. A square strip of wood of 18x2x2cm (2 holes are pierced by a reel of 5mm).
3. Three strips of wood of 3x1x6cm (one must have a hole of the diameter of the syringe).
4. Water of the lake.
5. A top laser of green color.
6. It injects.
7. Two bridles.
8. Glue for wood.
BIBLIOGRAPHY
1. "ExpCaseros", "What is in your mouth? - Home Microscope ", by Natalia and Mayden, web page: experimentoscaseros.info and on KZbin:" ExpCaseros ".
2. "HOME LASER MICROSCOPE OF 10,000 INCREASES", by Fanny, KZbin "INSIDE".
3. Helena Curtis, N, Sue Barnes, Adriana Schnek, and Alicia Massarini. (2008). Curtis Biology. Madrid, Spain: Médica Panamericana.