Ricin Is Toxic Because

question 62

Multiple Choice

Ricin is toxic because

• A) it binds to eukaryotic DNA.
• B) it binds to eukaryotic mRNA.
• C) it blocks food from entering the cell.
• D) it inactivates ribosomes.
• E) it binds to nerve tissue and causes paralysis.

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Definitions:

Subduction Zone

A region where one tectonic plate moves under another, often leading to volcanic activity and earthquakes.

Metamorphosed Rocks

Rocks that have undergone a change in mineral composition and texture due to extreme heat and pressure conditions.

Wedge-Shaped Zone

A geological area characterized by its wedge or triangular shape, often indicating tectonic activity or sediment accrual at plate boundaries.

Accretionary Prism

A geological structure formed by the accumulation of sedimentary and oceanic plate material scraped off a subducting plate, typically found at convergent plate boundaries.