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- Enzymes and the active site (article) | Khan Academy
The answer depends on the enzyme Some enzymes speed up chemical reactions by bringing two substrates together in the right orientation Others create an environment inside the active site that's favorable to the reaction (for instance, one that's slightly acidic or non-polar)
- Enzymes (video) | Cellular energetics | Khan Academy
An enzyme is just a special chemical This means that it can react and form temporary bonds The same way sodium and chlorine come together, enzymes and their substrates can come together Hope this helps!
- More enzyme types and mechanisms of catalysis (article) | Khan Academy
Kinases: Transfer phosphate groups, often from ATP, to substrates This is very important for activating and inactivating enzymes in biochemical pathways Aminotransferases: Transfer amino groups between amino acids and keto acids
- Cooperativity and the Hill coefficient (article) | Khan Academy
The binding of an allosteric regulator can lead to changes in the enzyme’s shape or conformation, influencing how efficiently it binds to substrates or catalyzes reactions
- Effect of substrate on SN1 reactions (INTERMEDIATE) (practice) | Khan . . .
In this exercise, we will explore a few more substrates that can undergo SN1 reactions based on the stability of the carbocations
- SN1 mechanism: Kinetics and substrates - Khan Academy
This video talks about the mechanism involved in an SN1 reaction It also elaborates on what is a rate determining step and how it affects the rate of a reaction We learn how to calculate the rate of an SN1 reaction and also, what is the order of an SN1 reaction In the end, it tells why the nucleophile does not affect the rate of an SN1 reaction while the concentration and type of substrate
- Effect of substrate on the rate of an SN1 reaction- Part 1
This video talks about the effect of substrate on the rate of an SN1 reaction It helps compare various substrates having the same type of leaving group and also briefly helps recall the mechanism of the SN1 rate
- Induced fit model of enzyme catalysis (video) | Khan Academy
Now since enzymes have unique active sites, we say that enzymes are specific to certain substrates, and by extension certain reactions But let's dive a little deeper into what happens when enzymes and substrates bind to each other and how that binding pattern changes as a reaction progresses
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