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lisabon 2012 [21]
2 years ago
11

Bacteria that release a toxin that forms a pore in red blood cells leading to hemolysis are using ___ to gain access to the nutr

ients inside the erythrocyte.
Biology
1 answer:
beks73 [17]2 years ago
7 0

Bacteria that release a toxin that forms a pore in red blood cells leading to hemolysis are using an alpha toxin to gain access to the nutrients inside the erythrocyte.

The best characterized and most potent membrane-damaging toxin of <em>Staphylococcus</em> <em>aureus</em> is α-toxin. It is expressed as a monomer that binds to the membrane of susceptible cells.

In humans, platelets and monocytes are specifically sensitive to α-toxin. They bear high affinity sites which allow the toxin to bind at concentrations that are physiologically relevant. A complex series of secondary reactions follow, leading to the release of eicosanoids and cytokines which in turn trigger the production of inflammatory mediators. These events cause the symptoms of septic shock that occur during severe infections caused by <em>S. aureus</em>.

To learn more about <em>Staphylococcus</em> <em>aureus</em>

brainly.com/question/9987551

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Which of the following involves only biotic factors?
Arada [10]

Answer:

C- a duck catching and eating a snail

Explanation:

Biotic factors involve living things. The only choice with two living beings interacts would be C.

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3 years ago
Eukaryotes that are not fungi, animals, or plants are classified in a "catch-all" category called ________. A. archaea B. protis
andre [41]

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brainly.com/question/23108617?referrer=searchResults

4 0
2 years ago
What are some similarities and differences between physical and chemical weathering
zvonat [6]
Physical weathering works with mechanical forces, such as friction and impact, while chemical weathering takes place at the molecular level with the exchange of ions and cations.
7 0
3 years ago
When does cytokinesis occur?<br> A. G₁<br> B. S<br> C. G₂<br> D. M
natima [27]

Answer:

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4 0
2 years ago
Individuals without AFS have a glutamic acid at position 487 on the ALDH2 protein, whereas individuals with AFS have a lysine at
azamat

Answer:

Aldehyde Dehydrogenase 2 (ALDH2) is an enzyme required to eliminate toxins such as acetaldehyde and alcohol, thereby mutations in this protein may be associated with the Alcohol flush syndrome (AFS)

Explanation:

ALDH2 is a protein required for ATP generation by catalyzing the oxidation of aldehydes to carboxylic acids (i.e., oxidation of NADH to NAD+). Mutations in the ALDH2 gene have been associated with the inactive form of this enzyme, and this specific mutation at position 487 alters its enzymatic activity associated with the metabolism of acetaldehyde and alcohol. This amino acid substitution may lead to the active site-directed inactivation of the enzyme.

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3 years ago
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