5.8 Cilia and Flagella

Question 1

Two hair-like outgrowths of the cell membrane:

Answer 1

I. Cilia (sing.: cilium)
II. Flagella (sing.: flagellum)

Question 2

Cilium is ______ (long/small) structures that work like ______, responsible for ________.

Answer 2

small; oars;
Movement of either cell or surrounding fluid

Question 3

An extension longer than cilia which is responsible for cell movement is ______.

Answer 3

Flagella

Question 4

The prokaryotic bacterial flagella are structural ______ (same/different) from that of the eukaryotic flagella.

Answer 4

different

Question 5

Cilium and flagellum are covered by ______.

Answer 5

Plasma membrane

Question 6

Core of Flagellum or Cilium is called ______.

Answer 6

axoneme

Question 7

Axoneme consists of a number of ______ running in ______ (perpendicular/parallel) to the long axis.

Answer 7

microtubules; parallel

Question 8

The number of microtubules present in the Anexome:
I. Radially arranged peripherally microtubules -
II. Centrally located microtubules -

Answer 8

I. 9 doublets = 18
II. 1 pair = 2

Question 9

The arrangement of axonemal microtubules is called ______.

Answer 9

9+2 array

Question 10

The central tubules are connected by ______ and are enclosed by a ______.

Answer 10

Bridges, central sheath

Question 11

The central sheath is connected to one of the tubules of each peripheral doublet by a ________

Answer 11

Radial spoke

Question 12

The total no. of radial spokes in cilia are -

Answer 12

9

Question 13

The peripheral doublets are also interconnected by _______

Answer 13

Linkers

Question 14

Both the cilium and flagellum emerge from ___-like structure called ______.

Answer 14

Centriole, basal bodies