Multiple Choice
Which of the following entities require a host cell because they are unable to synthesize proteins on their own?
1. A Review of General Chemistry
Intro to Organic Chemistry
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In the context of organic chemistry, why does stereoselectivity occur during a chemical reaction?
A
Because of the high temperature used in the reaction.
B
Due to the presence of chiral centers in the reactants.
C
Due to the use of non-polar solvents.
D
Because of the presence of isotopes in the reactants.
Verified step by step guidance1
Understand the concept of stereoselectivity: Stereoselectivity refers to the preference of a chemical reaction to yield one stereoisomer over another. This often occurs in reactions involving chiral centers.
Identify the role of chiral centers: Chiral centers are atoms in a molecule that have four different substituents, leading to non-superimposable mirror images, or enantiomers. The presence of chiral centers in reactants can lead to stereoselectivity.
Consider the influence of reaction conditions: While temperature and solvents can affect reaction rates and mechanisms, they do not inherently cause stereoselectivity. Stereoselectivity is more directly related to the molecular structure, such as the presence of chiral centers.
Evaluate the role of isotopes: Isotopes can affect reaction kinetics due to differences in mass, but they do not typically influence stereoselectivity, which is more about spatial arrangement than atomic mass.
Conclude the primary cause of stereoselectivity: The presence of chiral centers in the reactants is the key factor that leads to stereoselectivity in a chemical reaction, as it determines the spatial arrangement of atoms and the resulting stereoisomers.
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