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Explain the Prokaryotic Cells in details?
Prokaryotic Cells: Cells that lack a membrane-bound nucleus and have very few distinguishable internal structures when observed with microscopes are called prokaryotes, from the Greek meaning before nuclei. Bacteria and cyanobacteria (formerly called blue-green algae), for example, do not contain a nucleus or any of the organelles found in eukaryotic cells.
Bacterial cells are very different from the cells of higher organisms. In the first place, they are all much smaller, one tenth the size of eukaryotic cells. Most bacterial cells are roughly cylindrical, ranging in size from 1 to 2 micrometers in diameter, and up to 10 micrometers long, or about the same size as animal mitochondria. The nucleus of a typical prokaryotic cell is a fibrous mass of DNA found in a structure called a nucleoid. When some bacteria cells divide by fission, they form an extension of the plasma membrane called a mesosome that extends inward to help separated the duplicated DNA.
Compare the teeth of Australopithecus afaensis and Homo sapiens. a)Describe the similarities and differences between the two species. b) Write a hypothesis about dietary difference
the s phase of interface is important and a cell can newer divide without it justify?
Q. Explain about Rheumatic Heart Disease? Rheumatic Heart Disease (RHD) is a very common cause of cardiovascular disorder in children and adolescents in India. This disease inv
Individuals with tyrosinenmia have food patterns very similar to the one for PKU discussed above. PKU is more common than tyrosinemia. Foods that are high in tyrosine and phenylala
Gastrulation The end of cleavage of the unicellular zygote results in the creation of multicellular blastula, which may be a solid structure with no a cavity (stereoblastula)
Syngamy and Triple Fusion After traversing through the stylar region, the ultimate destination of the pollen tube is to reach the female gametophyte and release the male game
Describe two differences among green algae and plants. Algae lack tissue differentiation and have no true roots, leaves and stems. The gametangia of algae are single-celled; th
Q. What are the enzyme cofactors? Some of enzymes require other associated molecules to work. These molecules are known as enzyme cofactors and they can be, for example, organi
Gastrointestinal Tract - Changes Associated with ageing? Many path physiological factors limit the adequacy of the dietary intake of elderly. Loss of natural dentition may occu
Explain about enzymes All enzymes are proteins. Many enzyme proteins lack catalytic activity in the absence of a non-protein component, called a 'co-factor'. In this case, the
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