The long extension of a cell that can propel a cell forward by whipping back and forth (such as human sperm) is called a ________.
A)vesicle
B)flagellum
C)pilus
D)cilium

Question

Quizplus · Accepted Answer

The long extension that can propel a cell forward by whipping back and forth is called a flagellum. A cilium is also a long extension of a cell, but it is generally shorter and there are usually many present on a single cell, whereas flagella are usually less numerous or a single flagellum is present. Vesicles are membrane-bound organelles that are involved in transport or storage within the cell. Pilus is a hair-like structure on the surface of some bacteria that is used to attach to surfaces or other cells.

The Long Extension of a Cell That Can Propel a Cell