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Q. What are the respective functions of phospholipids, carbohydrates and proteins of the cell membrane?
Membrane phospholipids have a structural function they form the bilipid membrane that constitutes the cell membrane itself.
Membrane proteins have numerous specialized functions. Some of them are channels for substances to pass through the membrane, others are signalers and receptors of information, others are enzymes, others are cell identifiers (cellular labels) and there are still those that play a part in the adhesion complexes between cells or between the internal surface of the membrane and the cytosketeleton.
Membrane carbohydrates, associated to lipids or to proteins, are found in the outer surface of the cell membrane and they have in general labeling functions for recognition of the cell by other substances and cells for instance, they differentiate red blood cells in relation to the ABO blood group system immune modulation functions, pathogen sensitization functions, etc
Q How are the concepts of chromosome, chromatids and chromatin related? In which phase of the cell cycle does the DNA duplicate? Chromatin is a set of filamentous the DNA molec
Why is not Mendel's second law always valid for two or more phenotypical traits of an individual? Mendel's second law, or the law of the independent assortment, is valid for g
Q. List down the various mycotoxins associated with food? Mycotoxins associated with foods are: • Aflatoxins (produced by Aspergillus flavus) • Ochratoxin (produced
Plants use proteins, lipids and starch as seed storage compounds. What is an advantage of using proteins as a storage compound that are not afforded by lipids or starch?
Silviculture: It concerned with the cultivation of timber yielding plants. Silviculture is the way of controlling the growth, establishment, composition, health or quality of fore
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All of the following make meiosis different from mitosis, EXCEPT A. Meiosis comprises two separate divisions. B. Meiosis only occurs during embryonic development. C. Chromosome num
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Explain Some food applications of pectin As with other viscous polyanions such as carrageenan, pectin may be protective towards milk casein colloids, enhancing the properties (
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