S Chand Biology Class 10 Life Processes Pdf 48

S Chand Biology Class 10 Life Processes Pdf 48

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Endosymbiosis was a major discovery in evolutionary biology during the early 20th century. It is the process by which some species of bacteria are passed from generation to generation within the cells of other eukaryotic organisms. The eukaryotic cell has engulfed (endocytosed) the bacteria and uses them as a source of nutrients, benefiting the eukaryotic cell by allowing the bacteria to digest organic matter and thus obtain energy from previously inaccessible sources. Of course, the bacterium is also using the host to obtain energy from inorganic and organic compounds.

Question 42:(a) Explain the importance of proteins in the process of cell division. (What are the functions of proteins in the cell-division process?)(b) What does the term “macromolecules” mean? 827ec27edc