Which of the following correctly describes some aspect of exocytosis or endocytosis? A) Exocytosis and endocytosis change the surface area of the plasma membrane.
B)These two processes require the participation of mitochondria.
C) The inner surface of transport vesicle that fuses with or buds from the plasma membrane is most closely related to the inner surface of the plasma membrane.
D) Both processes provide a mechanism for exchanging membrane-impermeable molecules between the organelles and the cytosol.

The difference of sample means of two populations is 55.4, and the standard deviation of the difference of sample means is 28.1. which statement is true if we are testing the null hypothesis at the 95% confidence level? a. the difference of the two means is significant, so the null hypothesis must be rejected. b. the difference of the two means is significant, so the null hypothesis must be accepted. c. the difference of the two means is not significant, so the null hypothesis must be rejected. d. the difference of the two means is not significant, so the null hypothesis must be accepted.