Answer:
C. The enzyme with mutation 1 has decreased affinity for pyridoxal phosphate, whereas the enzyme with mutation 2 has lost the ability to bind to the substrates.
Explanation:
A coenzyme is an organic cofactor that binds with an enzyme in order to initiate or aid the function of the enzyme. A coenzyme binds to the active site of the enzyme (where the reaction occurs), thereby triggering its activation by modifying protein structure during the reaction. Some examples of coenzymes include Coenzyme A and Adenosine triphosphate (ATP). Pyridoxal phosphate is a coenzyme (it is the active form of vitamin B6) that is required for the function of cystathionase. Moreover, cystathionase is an enzyme that enables cells the synthesis of cysteine from methionine (transsulfuration pathway). The binding of pyridoxal phosphate to the enzyme increases the binding affinity of the enzyme for the substrate, thereby influencing its activity. In this case, it is expected that mutation 1 reduces the binding affinity of the enzyme to the cofactor, and thereby the cofactor is required at a higher concentration to restore normal enzyme activity.
Afunction of steroids is to increase muscle mass to help you get an advantage on your competitors.
Answer:
Human heart is myogenic becoz it have the tendency to generate impulse by itself. The upper right auricle wall of heart has sino atrium node or SN node which helps in generation of impulse without any external stimulus.
Cilia or flagella aid with movement in unicellular organisms
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EXTINCT ANIMALS THAT ARE CLOSELY RELATED TO US ARE:Some of the extinct members of this family include Gigantopithecus, Orrorin, Ardipithecus, Kenyanthropus, and the australopithecines Australopithecus and Paranthropus.
animals that are not exticnt and are stilll here and are closley related to us are the: orangutans and gorillas are in the great ape family, humans are most closely related to two other species in the family: bonobos and chimpanzees.
