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madreJ [45]
3 years ago
7

The antibacterial activity of penicillin is related to the inhibition of a key bacterial enzyme. Explain this mechanism of enzym

e inhibition.
Biology
1 answer:
serious [3.7K]3 years ago
8 0

Answer:

Penicillin binds and inhibits bacterial enzyme DD-transpeptidase.

Explanation:

Penicillin is made up of 4 rings of β-lactam and acts by binding to DD-transpeptidase of bacteria. The DD-transpeptidase facilitates the cross-linking of the peptidoglycan cell wall of bacteria. This leads to malformation of the protective cell wall of the bacteria and causes it to lyze and die.

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Answer:

organelles are very similar to present-day bacteria, suggesting a common ancestor.

Explanation:

Some evidence suggests that some organelles like mitochondria and chloroplasts within eukaryotes were once used to be independent eukaryotes.

Endosymbiosis theory says that ancestral prokaryotic cells engulfed bacteria like cyanobacteria which with time evolved into mitochondria and chloroplast. Molecular evidence also proves that these organelles were once prokaryotic organisms because they show similar genetic makeup and ribosome type.

So these organelles are similar to present-day bacteria showing that they have a common ancestor.

6 0
3 years ago
How does the experiment relate to what you've learned about submersible technology suck as submarines and ROV's?
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Answer:

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Explanation:

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3 0
3 years ago
When a free-moving object moves from the North Pole (90%) towards the equator (0°), it curves fro
svetoff [14.1K]

Answer:

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Explanation:

I found it on a website.

3 0
2 years ago
Which fossil type is made from minerals that form stone after the animal decays?
rodikova [14]
<span>Petrified Rock is the answer can you thank me plese i need 2 more</span>
6 0
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Why is a single base-pair deletion mutation within a protein-coding sequence more likely to be harmful than a single base-pair c
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