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  1. Whereas the cell wall of gram-negative bacteria is consisting of thin layers of peptidoglycan. During the gram staining procedure, a gram-positive cell retains the purple-colored stain. But do not retain the purple colored stain. Gram-positive bacteria produce exotoxins, whereas gram-negative bacteria produce endotoxins.

  2. Bacteria is the prokaryotic cell while the fungi are Eukaryotic cells. Besides this there are many other differences between them are known. As, bacteria need a host to live, and they can be autotrophs as well as heterotrophs. On the other hand, fungi grow their own and are heterotrophs and hence depend on others for their food.

  3. Cell wall of both bacteria and cyanobacteria contains. View Solution. Q 2. Assertion :Bacteria cell wall is more complex than plant cell wall. Reason: Bacteria cell wall contains proteins and oligosachharide. View Solution. Q 3. Very short answer type. Name the cell wall material which is present only in cyanobacteria and bacteria.

  4. Plants, Algae, Fungi, Bacteria and Archaea have cell walls but animals and Protozoa do not have cell walls. Animal cells have plasma membrane as the outer limiting structure. So, the correct answer is ' Animals'

  5. This slime layer becomes thick, called, capsule. The bacteria, which form a capsule, are’ called capsulated or virulent bacteria. The capsule ‘is usually found in parasitic forms e.g., Bacillus, anthracite, Diplococcus pneumoniae, Mycobacterium tuberculosis. Cell wall: All bacterial cells .are covered by a strong, rigid cell wall. Therefore ...

  6. Bacterial cell walls are made of peptidoglycan also called as murein, which is made from polysaccharide chains cross-linked by unusual peptides containing D-amino acids. Was this answer helpful?

  7. The primary cell wall of land plants is composed of the polysaccharides cellulose, hemicellulose and pectin. In bacteria, the cell wall is composed of peptidoglycan. Fungi possess cell walls made of the glucosamine polymer chitin, and algae typically possess walls made of glycoproteins and polysaccharides. Therefore, the correct answer is option B.

  8. Verified by Toppr. Bacteria are prokaryotic unicellular organisms. They lack the membrane-bound organelles like mitochondria, golgi complex. They contain ribosomes in the cytoplasm. They also contain mesosomes, which are the site of respirations. Mesosomes are infolds in the plasma membrane that increases its surface area. The cell membrane of ...

  9. Whereas the cell wall is found in the plant cell, fungi, bacteria only. It protects the cell from the external shocks, and also provide rigidity and shape to the cell. Therefore, the cell wall is the outermost boundary of the cell, on the other hand, the plasma membrane is present in the inner lining of the cell. Also, the plasma membrane is a ...

  10. Glycocalyx or pericellular matrix is a carbohydrate-enriched coating of glycoprotein and a glycolipid that covers the cell membranes of few bacteria, epithelial cells and other cells. It is mainly used in the recognition of the cell (distinguish between healthy and diseased cells) and also regulates the endothelial vascular tissues.