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What did Robert brown see under his microscope when he was looking at pollen grains floating on water?
Wiki User
∙ 12y ago
he saw a 92 head less chicken
Wiki User
∙ 12y ago
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What scientist first made the observations of moving pollen grains?
Robert Brown discovered the motion of moving pollen grains. Although, a theory not long after was found out by Albert Einstein was that the water particles (very hard to see, pretty much invisible) were making these pollen grains move.
What the function of the pollen grains?
Matured pollen grains contained sperm cells. When Pollen grains are sticky, you have pollen. Pollen grains are contained in the pollen sac, with the purpose of helping plants reproduce.
What is the job of a ribosomes?
Ribosome are organelles that synthesize proteins for the cell and send protein to the nucleus. Ribosomes can be free floating in the cytoplasm or be attached to the outer surfaces of the rough endoplasmic reticulum and are known as bound ribosomes.they make proteins
What are grains that produce sperm cells called?
Microspore mother cell after undergoing meiosis produces pollen grains, and the pollen grains during germination produce sperms by undergoing pollen mitosis.
What is the cause for sand grains to round?
The cause for the sand grains to be round is the hydraulic fracturing process. The sand grains to round usually range between 2 mm up to about 64 mm.
What was Robert brown looking at through a microscope when he found evidence of the 1827 scientific concept names in his honor?
Robert Brown (1773-1858) was a scottish botanist who is largely remembered for the contributions to botany that he made by using the microscope. In 1827 while looking under a microscope while looking at grains of pollen from Clarkia Puchella he noticed that minute particles ejected from the pollen was executing jittery motions. He observed the same phenomenon in an inorganic sample so he was able to conclude that this motion was not related to life. This motion was named Brownian Motion after Mr. Brown.
Who discovered brownian motion?
When Robert Brown used a microscope to look at pollen grains suspended in water in 1827, he observed that the pollen grains were constantly moving around as if they were being jostled by something. The particle model explains this so-called Brownian motion as being caused by water particles, which vibrate and are able to move, bumping the pollen grains.
Are grains in fine grained rocks easy to see?
No. In fact, in fine-grained rocks the grains are often impossible to see without a microscope.
What determines the size of grains in igneous rocks?
The cooling rate of molten rock
Why did Robert brown use pollen grains experiments?
Robert Brown called the moving motion he saw brownian motion
How could a sedimentary rock provide evidence that the rock cycle exist?
The Rock cycle is a process whereby all types of rock are formed then eroded and "recycled" through different depositional processes. Sedimentary rocks can provide evidence that the rock cycle exists by looking at it under a microscope. Sedimentary rocks are formed by the lithification of grains of different sizes shapes and compositions. By detemining the compositions of the grains within a sedimentary rock through a petrographic microscope or through a scanning electron microscope (SEM) then it can be seen that some grains are composed of minerals that are solely igneous in origin. Likewise, sedimentary rocks can be metamorphosed to form meta-sediments.
How could a sedimentary rock provide evidence that a rock cycle exists?
The Rock cycle is a process whereby all types of rock are formed then eroded and "recycled" through different depositional processes. Sedimentary rocks can provide evidence that the rock cycle exists by looking at it under a microscope. Sedimentary rocks are formed by the lithification of grains of different sizes shapes and compositions. By detemining the compositions of the grains within a sedimentary rock through a petrographic microscope or through a scanning electron microscope (SEM) then it can be seen that some grains are composed of minerals that are solely igneous in origin. Likewise, sedimentary rocks can be metamorphosed to form meta-sediments.
What is the difference between compound microscope and dissecting microscope?
In compound microscope are usually able to magnify an object by 400 times.while dissecting microscope usually only magnify an object by 40 times or less. In compound microscope are used to view very small, relatively thin things, such as cells. In dissecting microscope are used to look at larger objects that have a greater degree of depth such as grains of pollen. In compound microscope is always made with 1 eyepiece. On the other hand dissecting microscope is always made with 2 eyepiece.
What are the Evidences of molecular motion?
jittering motions of pollen grains as viewed under a microscope
What actors and actresses appeared in Grains of Sand - 2013?
The cast of Grains of Sand - 2013 includes: Robert Allen Balder as Story teller Estelita Quintero as Niece
What is the biology term Mitochondria mean?
This is a very interesting question. The term mitochondria means thread + grain. When people first began to look at cells under the microscope they saw grains with threads. The grains they saw were about the size of corn seeds. The threads were inside the grains. The terms comes from the Greek.
What scientist first made the observations of moving pollen grains?
Robert Brown discovered the motion of moving pollen grains. Although, a theory not long after was found out by Albert Einstein was that the water particles (very hard to see, pretty much invisible) were making these pollen grains move.
