Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Radioisotopes
Radioisotopes are those forms of an element which exhibit rzdioactivity and so can be used as markers or tracers. For this purpose, we first introduce the radioisotope in a molecule in the cell and then detect the radioactivity with the help of certain device. For example, if we replace a suitable hydrogen atom of thymidine by 3H, we may trace the course of thymidine in the cell. Since thymidine is a component of DNA but not of RNA, we can be sure that we are following only DNA metabolism. Similarly, to know the course of protein synthesis we may use radioactively labelled amino acids.Radioisotopes are used to:
(a) measure the rates of metabolic turnover of a material within a cell or tissue,
(b) locate the site of synthesis of molecules,
(c) measure the rate of exchange of materials across cellular membranes,
(d) locate a molecule in a cell. Radioisotopes are widely applied to study also the precursor-product relathship.
Many times when a radioactively labelled mokcule (pncursor) is introduced into a system. The molecule is chemically converted into another form (product). For example, when radioactive iron is introduced in blood, radioactivity can be detected in liver femtin and haemoglobin of red blood cells. Similarly, radioactivity of 32P- labelled phosphate can be detected in many phospholipids.
classification of phylum protozoa upto groups
In humans, maleness or femaleness is determined by a pair of sex chromosomes called X and Y. (a) What is the genotype for males? (b) What is the genot
The three charges in the are at the vertices of an isosceles triangle. Let q = 7.00 nC and calculate the electric potential at the midpoint of the base.
Parthenogenesis The diploid egg produced in the embryo sacs during diplospory and apospory develops into an embryo without fertilization, thus maintaining the sporophytic lev
Explain the Decolourizing Agent - Stain Technique? 95% ethanol is used as a decolourizing agent. It has two functions - (1) It acts as protein - dehydrating agent, and (2
Aerobic and Anaerobic Exercises Generally, there are two types of exercises: - Aerobic - Anaerobic Aerobic exercises are those in which the patient spends calories fro
WHY NETWORKING IN HOSPITALS Sharing of data is essential, especially in any kind of hospital setting. For staff and doctors of a hospital, if they have details of patients rea
Behaviour change communication is necessary as it ensures that the diabetic patient and their families have access to correct information about the disease, complications, treatm
Define Determinants of Food Security - Food Availability? It depends on the quantum and quality of crops, livestock, fishery and other food sources, as well as commercial impor
Temperature is one of the important factors affecting the process of growth in bacteria, as it has a bearing on chemical reactions. The temperature at which the maximum growth occu
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd