The experiments of Palade and colleagues, using incorporation of labeled amino acids, defined the pathway taken by secreted proteins as
a. rough ER, smooth ER, Golgi, secretory vesicles, cell exterior.
b. rough ER, smooth ER, Golgi, endosomes, cell exterior.
c. rough ER, Golgi, endosomes, cell exterior.
d. rough ER, Golgi, secretory vesicles, cell exterior.
Ans: d. rough ER, Golgi, secretory vesicles, cell exterior.
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An application of too much fertilizer will negatively affect the movement of materials in the phloem.
Answer the following statement true (T) or false (F)
Oxpeckers have long been thought to have a mutualistic relationship with cattle in Zimbabwe, whereby the birds remove ticks from the backs of cattle, and the cattle benefit due to the removal of parasitic ticks
The observational experiments of Weeks (2000 ) in Zimbabwe demonstrated that the relationship between oxpeckers and cattle was not mutualistic, but in fact parasitic. What two oxpecker behaviors did Weeks observe?
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Answer the following statement true (T) or false (F)