AP BIOLOGY

THE CELL

STRUCTURE AND FUNCTION OF THE CELL

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Numerous hairlike organelles that protrude from the surface of a cell and are packed in tight rows are called ____
A
flagella
B
microtubules
C
actin filaments
D
cilia
Explanation: 

Detailed explanation-1: -Cilia are short, hair like appendages extending from the surface a living cell. Cilia are found exclusively in the prokaryotes.

Detailed explanation-2: -Cilia are slender, microscopic, hair-like structures or organelles that extend from the surface of nearly all mammalian cells (multiple or single). S.N. Cilia are short, hair like appendages extending from the surface of a living cell.

Detailed explanation-3: -Flagella (singular, flagellum) are long, hair-like structures that extend from the cell surface and are used to move an entire cell, such as a sperm. If a cell has any flagella, it usually has one or just a few.

Detailed explanation-4: -Cilia are also known as flagella, but to prevent confusion with bacterial flagella, which are structurally different from eukaryotic flagella, the term cilium is preferred over flagella. Cilia can be either motile or nonmotile (Sorokin, 1968).

Detailed explanation-5: -Tiny hairlike organelles called cilia cover many cells from single-celled microorganisms to mammalian tissue. Motile cilia beat actively generating cilia-driven flows.

There is 1 question to complete.