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  • 1. what would happen to your cells if a hypertonic...

1. what would happen to your cells if a hypertonic solution is placed directly into your
bloodstream? explain.
2. describe the role of the phospholipid bilayer during exocytosis and endocytosis.
3. explain why cells have a size limit.
4. describe the relative roles of dna and rna in protein synthesis.
5. define mitosis. why is mitosis important?
6. does dna replication occur during mitosis? explain.
7. what clues can you derive about the function of a cell from the number of mitochodria
it contains? what about the number of lysosomes?
8. why is a "cell” that lacks a nucleus destined to have a relatively short life? give one
example of such a cell.​


  • Réponse publiée par: calmaaprilgrace


    1. The cells will eventually shrink due to imbalances in the fluids and solutes inside and out of the cell, the high concentration of solutes outside the cell attracts water from their cytosol to excrete them in their extracellular matrix to even out the differences in both solute and solvent concentration.

    2. The role of phospholipid bilayer in said tasks is to create an impasse to non permeable biomolecules or to regulate their passage, remember that not all molecules are a necessity and does nothing to the cell but danger.

    3. It's for them to equally distribute the biomolecules or elements more efficiently on all organelles, the larger the size the lesser the distribution of molecules.

    4. DNA acts as a template for protein synthesis that is mediated by some enzymes using RNA that is translated from DNA.

    5. Mitosis is the division of the cells which yields a chromosome number of 46 in each individual daughter cells produced.

    6. DNA replication does not occur during mitosis, instead it happens before mitosis.

    7. The number of the said organelles may parallel their functions, mitochondria acts as a powerhouse of the cell, if they are numerous this may indicate that the cell consumes much more energy than the other. Lysosomes contains digestive enzymes as in leukocytes particularly the granulocytes in which their function is the destruction of microorganisms using digestive enzymes.

    8. Nucleated cell may mean that they are equipped with very important organelles for example mitochondria. RBC do not contain nucleus subsequently they do not have mitochondria too, which means that they are short-lived due their lackings. Mitochondria does not only produce energy but metabolize many molecules that can do harm to the cell. RBC as an example are also equipped with enzymes that can metabolize toxic substances but they are limited, thus their lifespan is also limited.

    Hope that you understand my explanation. Thank you :)

  • Réponse publiée par: maledabacuetes

    Inside the nucleus of the eukaryotic cell.

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