Answer:
a. The protein is internalized by endocytosis.
b. The A chain binds to clathrin. The B chain interacts with SNARES
c. The A chain stimulates autophagy
d. The protein enters through pore complexes in the plasma membrane.
The correct option is a
The protein is internalized by endocytosis.
Explanation:
The protein is internalized by endocytosis because Ricin is a potent toxin gotten from lecithin. It internalised in the intracellular cell by endocytosis or substances are brought inside the cell and translocated into the cystosol which hereby inhibit protein synthesis and kill the internal cells. These internal toxins are transported to lysosomes for degradation