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Q. What are the phospholipids?
Phospholipids are molecules made of glycerol bound to one phosphate group and to two long molecules of fatty acids. hence, phospholipids are amphipathic molecules, i.e., they have a non-polar portion, due to the long fatty acid chains, and a polar portion, due to the group phosphate.
Phospholipids are the major component of cell membranes. Sphingomyelin, the substance to facilitate to forms the myelin sheath of axons in the nervous system, is a phospholipid too.
DNA and RNA are polymers composed of repeated units called?
Substances which are insoluble in a membrane are carried across membrane with concentration gradient by means of a carrier molecule in a process termed as: a) Diffusion. b)
Q. What is scientific value in Biodiversity? Nature is a major source of inspiration for scientific thought and the subject of many scientific studies. Biodiversity which const
Which of the following does NOT contain a guanidinium group Select one: a. Urea b. arginine c. creatine d. guanidinium ion
In which of the following functional groups ionization is stabilized by resonance? Select one: a. Carboxyl b. Hydroxyl c. Amine d. Aldehyde e. All of the above
Why Fats, Oils and Sugar are important for human body? This group imparts flavour to the items and thereby improves the palatability. Items incorporating them do melt in the mo
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In the prokaryotes, RNA transcribed from protein-coding genes or messenger RNA, mRNA, need little or no changes prior to translation. In reality, several mRNA molecu
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