answer choices for blank 1: an RR/SS racemic mixture of A an RS/SR racemic mixture of A a racemic mixture of B all possible stereoisomers answer choices for blank 2: an RR/SS racemic mixture of A an RS/SR racemic mixture of A a racemic mixture of B all possible stereoisomers
Catalysis and Enzymatic Reactions
Catalysis is the kind of chemical reaction in which the rate (speed) of a reaction is enhanced by the catalyst which is not consumed during the process of reaction and afterward it is removed when the catalyst is not used to make up the impurity in the product. The enzymatic reaction is the reaction that is catalyzed via enzymes.
Lock And Key Model
The lock-and-key model is used to describe the catalytic enzyme activity, based on the interaction between enzyme and substrate. This model considers the lock as an enzyme and the key as a substrate to explain this model. The concept of how a unique distinct key only can have the access to open a particular lock resembles how the specific substrate can only fit into the particular active site of the enzyme. This is significant in understanding the intermolecular interaction between proteins and plays a vital role in drug interaction.
answer choices for blank 1:
- an RR/SS racemic mixture of A
- an RS/SR racemic mixture of A
- a racemic mixture of B
- all possible stereoisomers
answer choices for blank 2:
- an RR/SS racemic mixture of A
- an RS/SR racemic mixture of A
- a racemic mixture of B
- all possible stereoisomers
![**Figure 12-3: Hydroboration-Oxidation Reaction of an Alkene**
This figure illustrates the hydroboration-oxidation reaction of a 3-methyl-1-pentene, depicted as follows:
**Starting Material:**
- The compound at the beginning of the reaction is an alkene: \( \text{CH}_3\text{CH} = \text{C(CH}_3)\text{CH}_2\text{CH}_2\text{CH}_3 \).
**Reaction Conditions:**
1. \( \text{BH}_3 \) (Borane) is added.
2. Followed by the addition of \( \text{H}_2\text{O}_2, \text{OH}^- \) (Hydrogen peroxide and hydroxide ion in water).
**Products:**
**Product A:**
- The structure for compound A after the reaction is:
\[
\text{CH}_3\text{CH}(\text{OH})\text{CH}_2\text{CH}(\text{CH}_3)\text{CH}_2\text{CH}_3
\]
**Product B:**
- The structure for compound B after the reaction is:
\[
\text{CH}_3\text{CH}_2\text{C}(\text{OH})(\text{CH}_3)\text{CH}_2\text{CH}_2\text{CH}_3
\]
This figure demonstrates the hydroboration-oxidation mechanism that results in different orientations of the alcohol product, namely anti-Markovnikov addition, where the \( \text{OH} \) group is added to the less substituted carbon atom of the alkene.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F03317af0-4144-4b0a-a13c-c65183a22c1d%2F9b8161be-2ef2-41ef-9663-bb0cbb10014c%2Flsm6a3b_processed.png&w=3840&q=75)
![See Figure 12-3. If Compound Q undergoes the reaction shown, the E isomer of Q will form [Select], and the Z isomer of Q will form [Select].](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F03317af0-4144-4b0a-a13c-c65183a22c1d%2F9b8161be-2ef2-41ef-9663-bb0cbb10014c%2Fas6a87w_processed.png&w=3840&q=75)
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