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Define Essentiality of Vitamins for Growth of Micro-Organism
Vitamins are also essential in small amounts for cellular activities and growth. These are also the coenzymes for active enzyme systems. These usually make up all or part of the enzyme cofactor. Some microbes can synthesize vitamins while others need it from outside source.
Which of the following is true in a skeletal muscle? A. Movement of the cross-bridge occurs only when the myosin head is detached from the actin molecule. B. The binding of
Can someone explain how is cancer related to ras and p53 gene? I know that the ras protein regulate cell growth and its mutation will cause cancer. How is the mutation caused?
N A TURA L CONTROL OF POPULATION GROWTH - 1 . Biotic potential - It is capacity of population to increase its number by reproduction. For all animals, it is v
Briefly describe the principal lines of defence against bacteria entering the blood system. A blood clot forms a barrier to entry by bacteria. White cells ingest and kill bacte
What are likely to be the limiting factors in a population of (a) green plants, (b) birds? (a) In green plants the limiting factors are likely to be light, water, minerals, te
Write two functions of proteins in biological systems. The important functions of proteins in biological systems are as follows: enzymes membrane carriers anti
What is genetic drift?
How do plants solve the problem of transporting substances throughout their tissues? In bryophytes the substance transport is completed by diffusion. In tracheophytes (pteridop
Red-green colour blindness is X-linked recessive. A woman with normal colour vision has a father who is red-green colour-blind. The woman has four sons, none of whom are colour-bli
Chemical Properties of Fatty Acids Esterification Like any other organic acid, fatty acids also form esters with various alcohols. An alcohol such as glycerol is reacted
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