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andrey2020 [161]
3 years ago
12

because you may come in contact with organisms you cannot see (microbes), what safety procedure must be followed?

Biology
1 answer:
Elan Coil [88]3 years ago
4 0

Hello there!

Usually, the procedures you should follow is using hand sanitizer or just washing your hands. That can help remove some microbes, but it is inevitable to not get any germs on you

^Hope it helps

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Positive reinforcement
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Who is ernes hekel?​
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Ernst Heinrich Philipp August Haeckel is a German zoologist, naturalist, philosopher, physician, professor, marine biologist, and artist who discovered, described and named thousands of new species, mapped a genealogical tree relating all life forms, and coined many terms in biology, including ecology, phylum, phylogeny, and Protista.

Explanation:<em>Your welcome:)</em>

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During what stage of photosynthesis is o2 produced
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8 0
3 years ago
Which is not the precursor for the de novo purine biosynthesis?
amm1812

The correct option is (B) Lysine.

The precursors glutamine (N2 and N9), glycine (C4, C5, and N7), aspartate (N1), co2 (C6), and folate are used to create the purine ring (C2 and C8). All are precursors to the purine ring, with the exception of lysine.

How is Purine synthesized de novo?

  • In all cells, the cytosol is where purine biosynthesis takes place.
  • There are 11 steps that are catalyzed by enzymes that build the purine ring. Each enzyme includes several monomers because it is oligomeric.
  • The reaction does not release the intermediate products that are created. They are instead transported to the next enzyme in the process.
  • The biosynthesis process in the human body can provide the body's need for purine in metabolic processes. Clinical symptoms might become unpleasant if purine synthesis is inadequate or if biosynthetic routes are aberrant.

Learn more about the Purine biosynthesis with the help of the given link:

brainly.com/question/14229639

#SPJ4

I understand that the question you are looking for is "Which of the following is not the precursor of a purine ring?

(A) Glutamine

(B) Lysine

(C) Glycine

(D) Aspartate"

7 0
1 year ago
11. How has our misguided, or inappropriate, use of antibiotics led to the development of organisms like
Nitella [24]

Answer:

1. use of the wrong antibiotic

2. use of insufficient concentration of the right antibiotic

Explanation:

MRSA means Methicillin-resistant staphylococcus aureus

VRSA means Vancomycin-resistant Staphylococcus aureus

These are resistant forms of the bacteria <em>Staphylococcus aureus</em> to the antibiotics mentioned.

Bacterial resistance to antibiotics occurs when bacteria develop mechanisms that protect them against the effects of previously effective antibiotics.

Misguided and inappropriate use of antibiotics results in resistance, and they mainly occur as a result of two activities:

1. Use of wrong antibiotics: antibiotics are chosen using a microbiological technique called 'sensitivity testing', to determine which antibiotic is effective against a bacterium. However, when antibiotics are taken without proper sensitivity testing, the bacteria develop resistance against such antibiotics.

2. Use of inadequate concentration of the right antibiotic: This involves using less than the minimum inhibitory of minimum bactericidal concentration of an antibiotic against a bacteria. In this case, the organism has ample time to evolve in the presence of the antibiotic, hence the occurrence of resistance.

7 0
3 years ago
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