The chronological order of events starting from poisoning should be as follows:
- Ricin enters the victim's body
- Ricin is absorbed into the blood and enters the cells
- Ricin binds to ribosomes in the cytoplasm
- Ricin inactivates 28s rRNA in the large subunits of the ribosomes
- Ribosomes are unable to add new amino acids to polypeptides
- Protein synthesis halts in many tissues
- Multiple organ systems fail
- The victim dies
Ricin is a plant toxin. It is poisonous to mammalian cells as it interferes with the catalytic activity of ribosomes in protein synthesis. It irreversibly binds to the ribosomal subunits and halts the polypeptide synthesis process, leading to cell death.
Note: Your question is incomplete, but probably it includes the following options:
a. Ricin is absorbed into the blood and enters the cells
b. Ricin inactivates 28s rRNA in the large subunits of the ribosomes
c. Ricin binds to ribosomes in the cytoplasm
d. Ricin enters the victim's body
e. Multiple organ systems fail
f. Protein synthesis halts in many tissues
g. The victim dies
h. Ribosomes are unable to add new amino acids to polypeptides
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Answer: The blood vessels and heart are apart of the circulatory system
Explanation:
Answer:
2.63 ml of diluent should be added to prepare an injection containing capreomycin, 300 mg/mL
Explanation:
300 mg/ml is 0.3 g/ml
1g of capreomycin was contained
volume of solution = mass of capreomycin / ( concentration of capreomycin solution)
= ( 1g) / ( 0.3g/ml) = 3.33 ml
Now when 2.15 ml diluent added we got solution volume as 2.85 ml
Therefore, volume by capreomycin = 2.85 - 2.15 = 0.7 ml
1g capreomycin occupies 0.7 ml
volume of dilent needed = injection volume - volume occupied by capreomycin
volume of dilent needed = 3.33ml - 0.7ml
volume of dilent needed = 2.63 ml
As their questions are answered so are ours’?
