Question

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) Cilium
B) Flagellum
C) Pseudopod
D) Microvillus

Answer 1

Flagella and cilia are hair-like structures found in cells that help with movement. Flagella are long structures that move the entire cell, while cilia are shorter structures that move substances along the cell's outer surface.

Step-by-step explanation:

Flagella (singular = flagellum) are long, hair-like structures that extend from the plasma membrane and are used to move an entire cell. When present, a cell has just one flagellum or a few flagella. Cilia (singular cilium) are short, hair-like structures that are used to move entire cells or to move substances along the outer surface of the cell. When cilia are present, they extend along the entire surface of the plasma membrane.