Answer: 3
Explanation: You may not always get feedback that would be helpful and requesting the answer would be cheating
The moderator of a nuclear reactor is a substance that slows neutrons down. In traditional nuclear reactors, the moderator is the same thing as the coolant: it’s water! When fast neutrons strike the hydrogen atoms in H2O, they slow down a lot (like a billiard ball striking another). There are other good moderators like graphite, beryllium, and more.
<h3>What is
moderator ?</h3>
Other neutrons are released at extremely high speeds when an incoming neutron splits an atom's nucleus. A sustained chain reaction is achievable if at least one (on average) of these neutrons can be made to split another fuel atom. In fact, if a neutron is traveling slowly, fuel atoms (like uranium) are more likely to absorb it (see Figure 1). In order to make a chain reaction easier to achieve, moderators are used in many reactor designs.
Neutrons can be slowed down more effectively in some materials than others. Because of the rules of conservation of energy and momentum, a neutron (mass 1) colliding with a heavy nucleus like a fuel atom cannot significantly slow down (mass 235).
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Answer:
The generation of AMP takes place by the reaction involving condensation with Asp and the reaction in which fumarate is release. On the other hand, the generation of GMP takes place at the time of oxidative hydration and during transamination with glutamine. Hence, for AMP option A and D is correct, and for GMP option B and C is correct.
Explanation:
A) The production of arginosuccinate and AMP takes place when condensation of citrulline takes place with aspartic acid. It is an energy-dependent reaction, which results in the hydrolysis of ATP to AMP.
B) The liberation of GMP takes place during the oxidation of amino acids.
C) The production of glutamate and aspartate takes place respectively during the transfer of amino group from glutamine to oxaloacetate, in the process hydrolyzation of GTP takes place to GMP.
D) The formation of arginine and fumarate takes place during the conversion of arginosuccinate, in the process ATP is hydrolyzed and the generation of AMP takes place.