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mash [69]
3 years ago
15

A useful model for enzyme action is the:

Biology
1 answer:
Alika [10]3 years ago
6 0

A useful model for enzyme action is the  Lock and Key model

Answer:  Option D

<u>Explanation:</u>

Enzymes are nothing but chemicals which are used to increase the reaction rate such that the reaction gets completed at faster rate. The working mechanism of enzyme can be best understood by the lock and key model which was put forth by Emil Fischer in 1890.

In this model he explains about the relation between the dynamic site of an enzyme and a substrate particle.  The dynamic site was thought to have a fixed structure (the lock), which precisely coordinated the structure of a particular substrate (the key).

When the correct substrate fits in the enzyme it causes enzyme and substrate to interact with each other. The substrate is changed over to products and is subsequently discharged, freeing the protein.

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dybincka [34]

Answer:

Explanation: ground water contamination is nearly

always the result of human activity. In

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use of the land is intensive, ground water is especially vulnerable. Virtually any activity whereby

chemicals or wastes may be released to the environment, either intentionally or accidentally, has

the potential to pollute ground water. When

ground water becomes contaminated, it is difficult

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To begin to address pollution prevention or remediation, we must understand how surface waters

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8 0
3 years ago
Parkinson disease is a progressive loss of motor function due to the degeneration of specific neurons. These neurons secrete an
igor_vitrenko [27]

Answer:

Dopamine

Explanation:

Parkinson’s disease is a degenerative, progressive disorder that affects nerve cells in parts of the brain called the basal ganglia and the substantia nigra.

The neurotransmitter dopamine is produced by nerve cells in the substantia nigra and these nerve cells function in relaying information from the brain that plan and control body movement. In Parkinson's disease, the dopamine-producing nerve cells of the substantia nigra begin to die off . Symptoms such as tremor, impaired movement, stiffness, and balance problems occur when the loss of nerve cells is about 80%

8 0
3 years ago
List three facts you discovered about ecosystem
Colt1911 [192]

Answer:

Google is great sometimes

Explanation:

Type your question in google

8 0
4 years ago
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How would you investigate the effect of temperature on photosynthesis? Outline the steps of a practical investigation.
fredd [130]

Answer:

I would use a thermometer on it.

Explanation:

7 0
3 years ago
Descibe how the muscle contracts and recharges starting with the release of Ca+ and ending with the cycle of recharging
Paul [167]

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Explanation:

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