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Q. What are the zymogens?
proenzymes, or Zymogens, are enzymes secreted in inactive form. Under some conditions a zymogen shifts to the active form of the enzyme. Zymogen secretions in general happen because the enzyme activity can damage the secretory tissue.
For example, the pepsinogen secreted by the stomach becomes active under acid pH turning into the enzyme pepsin. Other well-known zymogens are chymotrypsinogen and trypsinogen, enzymes that are secreted by the exocrine pancreas and which become chymotrypsin and trypsin respectively.
Q. Concerning digestion how are poriferans characterized? Sponges are diverse from other animals since they present only intracellular digestion. Do they release digestive enzy
Exon are those parts of a genomic DNA sequence which will be represented in final, mature mRNA t A contiguous segment of the genomic DNA which codes for a polypeptide in the gene.
Illustrate the tear flow direction of drainage. Tear Drainage: Tear are drained by the combined action of gravity, capillary action and lid movements (Lacrimal pump)
What characteristics distinguish fungi from plants? Fungi contain some unicellular forms, but plants do not; most plants are autotrophic, but all fungi are heterotrophic. Fungi
Cu ions released from copper - releasing Intra Uterine Devices (IUDs): 1. make uterus unsuitable for implantation 2. increase phagocytosis of sperms 3. suppress sperm moti
what is heterotrophic nutrition ?
Question 1: Briefly explain the applications of various technologies in biotechnology. Definition of biotechnology Brief on different applications of various technolo
Define Iodothyronine Deiodinases - functions of selenium in humans? Another group of selenoproteins are the iodothyronine deiodinases essential for the conversion of thyroxine
Q. What is an open circulatory system? Open circulatory system is the one in which blood doesn't circulate only inside blood vessels but it also falls in cavities that irrigate
Q Do beings of the class Reptilia have indirect or direct development? In beings of the class Reptilia the embryonic development is direct. So there is no larval stage. Q.
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