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Signal transduction occurs when an extracellular signaling molecule activates a cell surface receptor. In words, this receptor change intracellular molecules changes a response. There are two levels in this procedure: the signaling molecule activates a particular receptor protein on the cell membrane. A 2nd messenger transfers the signal into the cell and eliciting a physiological response. In either level the signal can be amplified. Whereas, one signalling molecule can cause several responses. Gene activations and metabolism alterations are instances of cellular responses to extracellular stimulation which requires signal transduction.
Situation in which a closed loop negative feedback system is converted to an open loop system? A. A disease that destroys all the adenylyl cyclase and all the cAMP in the
Determine the function of Iron for athletes? Iron carries oxygen and is another important mineral for athletes. It also affects oxygen transport and aerobic metabolism as a com
What purpose does sleep serve for the brain? A. We don't yet know full answer to this fundamental question however neuroscience is providing intriguing clues. It's increasingly
Q. What are the periods of the second meiotic division? Meiosis II is divided into metaphase II, prophase II, anaphase II and telofase II.
Explain the Effect of Deficiency of Vitamin E? Fortunately, vitamin E deficiency in human is extremely rare. This may probably be due to its wide occurrence. in natural foods a
Characteristics of Nutrient Uptake These results show certain characteristics of nutrient uptake. Selectivity: Certain mineral elements are taken up preferentiall
Q. What is the relation between the concepts of chromosome and chromatin? Are heterochromatin and euchromatin part of chromosomes? Every filament of chromatin is a complete DNA
a) Explain somatic hybridisation? b) Describe the various steps involved in the process. Mention any two uses of somatic hybridisation
Explain the Dietary Management of Sepsis and MODS? Patients suffering from sepsis and/or resultant multiple system organ dysfunctions are critically ill and admitted in the int
Explain the Indirect Methods of Microbial Estimation? Indirect methods, i.e., methods other than those counting the microbial cells can also be used for quantitation purpose. T
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