working of scanning electron microscope animation

It is used for the study of three-dimensional surface view of a given specimen. Its resolving power is also around 2 to 10 0 A. fig. 3.5 - Scanning Electron Microscope..

A sperm is a haploid male gamete which fuses with the ovum to form the diploid zygot..

Study the structures of a typical animal cell and a typical plant cell as seen under an electron microscope..

Under the electron microscope the centrioles appear as two short, hollow, cylinders usually lying at right angles to each other. Each centriole is made up of nine microtubule triplets, which lie evenly spaced in a ring. There are no microtubules in the center (9+0 arrangement). ..

. The two-kingdom classification has certain demerits, particularly with reference to lower forms of life which show common features with both plants and animals. In 1858 Earnt Haeckel proposed the three-kingdom classification in which apart from Plantae and Animalia, a new kingdom Protis..

Cardiac Muscle - It is also known as heart muscle. The cardiac muscle fibres do not form fasciles. They are arranged in the form of a network. The muscle fibres are elongated, cylindrical and branched. The branches become inter-connected with one another to form a network. The space between the mus..

The cells that make up our body are so small that you could fit over 200 of them on the full stop at the end of this sentence Before we plunge into the chapter, here are some interesting facts about cells. Read on... The word cell is derived from the Latin word cellula which means a little ..

differ from plants in several features. They do not have chlorophyll and they are saprotrophic in nature. It is presumed that when life first evolved on the earth it was neither in the plant form or in the animal form. Definite plant or animal status is said to have been at..

Did You Know? - The cells that make up our body are so small that you would fit over 200 of them on the full stop at the end of this sentence. The word cell is derived from the Latin word cellula which means a little room. It was the British botanist Robert Hooke who, in 1664, while examining a sli..