Answer: The cells have differentiated.
Explanation:
The process by which a cell changes from one type to another is called cellular differentiation. When this happens, the cell changes to a more specialized type. So this creates differentiated daughter cells which are important in a multicellular organism because <u>they are able to perform different and specialised functions</u> in an organism.
C. hypothesis. He is giving a possible answer to the question "why did the celery crisp when placed in water?"
- During the chymotrypsin reaction, both the protonated and unprotonated forms of histidine 57 occur.
- This is possible within the physiological pH range thanks to its pKa of 6.0.
<h3>Describe the role that histidine 57 plays in the chymotrypsin mechanism.</h3>
- General base catalysis and general acid catalysis are two of the processes that histidine accomplishes.
- As a general base, it takes a hydrogen from serine 195 in the first step.
- The amide group of the peptide bond that is breaking is given hydrogen in the next phase, which is an acid catalysis step.
- The second stage of the reaction is conducted according to a similar plan.
<h3>Role of nucleophilic catalysis in the chymotrypsin reaction mechanism:</h3>
- The nucleophile that attacks the substrate peptide bond in the first phase of the reaction is serine hydroxyl.
- Water is the nucleophile that attacks the intermediate acyl-enzyme in the second step.
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