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A pure phospholipid bilayer with its hydrophobic interior, is permeable to water and gases such as O2, CO2, N2 and small uncharged polar molecules such as urea, ethanol, but is impermeable to large uncharged polar molecules such as glucose, ions (Na+ , K+ , Cl-, Ca2+ ) and charged polar molecules instance for amino acids, ATP, glucose 6-phosphate. The initial group of molecules can cross a biological membrane unaided and without an input of energy, whereas the latter group requires the presence of integral membrane transport proteins and, in many cases an input of energy to travel by the otherwise impermeable membrane barrier. Thus the plasma membrane and the membranes of internal organelles are selectively permeable barriers and maintaining a distinct internal environment.
Q. Define High Density Lipoproteins ? High density lipoproteins (HDL) are the smallest of the lipoprotein species and transport approximately 20 to 30 per cent of plasma choles
GRADIEN T THEORY - It was given by T. Boveri & was supported by M.C. Child. Child called it as metabolic axial gradient theory. According to it, the egg has distinct ani
Width of the Implant The width of the implant especially at the interface area is critical towards the success of the implant. It has been recommended that at least 1mm of bone
Animal Diseases - Diseases are common in domestic animals. Common signs of illness in animals are - 1. Cessation of rumination. 2. Drop in milk yield. 3.
Algal or Planktonic Fish Poisonings: Fish poisoning can result from the ingestion of fish or shellfish that have fed upon algae toxic to human beings. Paralytic shellfish poisoning
Why would we evolve so that when we are stressed our immune system is suppressed? How would this increase survival?
List the advantages of IOPA and OPG a) Advantages of IOPA are as follows It is a useful high yield modality for ruling out local bone or dental disease It is of value
Explain performance testing of fats and oil In these cases, performance testing is the only means for evaluating the ability of fat or oil to perform the desired functions in a
Mounting boxes for insect collections Wood or cardboard cigar boxes make very useful and suitable housings for insect collections. After the insect has been separate from the s
PHYLUM ANNELIDA Definition and Introduction Bilateral and protosomial eucoelomate eumetazoans whose long narrow and wormlike body is division into ring like t
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