I’d say A is probably the correct answer , but if not A , then definitely B.
Answer:
d. Glucose has the right shape and charge to cause hexokinase to undergo a structural change needed for catalysis, whereas water does not.
Explanation:
<u>d is the correct option</u>. It explains the <u>reaction specificity of hexokinase</u> during glycolysis. Glycolysis is the metabolic pathway in which glucose is converted to pyruvate to generate a high energy molecule in the form of ATP and NADH.
In the first step of glycolysis, glucose (6-carbon ring) is catalyzed to glucose-6-phosphate by Hexokinase enzyme using Mg-adenosine triphosphate (Mg-ATP) as a source of phosphate. <u>Hexokinase demonstrates conformational change on binding site in glucose</u>. Precisely, it brings C6-OH group of glucose and Mg-ATP close and binds together at the active site. This bond excludes water (H2O) from the active site. The active site has the capability to bind two ligands, glucose, and glucose-6-phosphate. When glucose binds, hexokinase goes through an induced-fit conformational change that prevents the hydrolysis of ATP.
<em>Final impression: </em>Such a catalysis is specified to hexokinase, and cannot be done by any other molecule. Glucose has the right shape and charge to cause hexokinase to undergo a structural change needed for catalysis, whereas other molecule is not suitable for this reaction.
Answer: the answer is Electrons
Explanation:
Answer:
The correct option is : B. It is fundamentally different from natural selection
Explanation:
Artificial selection is a process of selective breeding of animals and plants, to develop and obtain the desired phenotypic characteristics or traits in the offspring. In this process, humans select which animal or plant males and females will breed, to produce an offspring possessing the desired phenotypic traits.
Charles Darwin used artificial selection to support and introduce his theory of natural selection. He compared natural selection with artificial selection and explained that <u>artificial selection is an intentional process, whereas natural selection is not.</u>
<u>As artificial selection is intentional and natural selection is not intentional.</u>
<u>Therefore, </u><u>artificial selection is fundamentally different from natural selection.</u>
