6.6 centrosomes and centrioles

Question 1

where do microtubules grow out of

Answer 1

a centrosome

Question 2

centrioles

Answer 2

composed of 9 sets of triplet microtubules arranged in a ring

Question 3

primary cilium

Answer 3

the cilia that act as a signal receiving antenna for the cell
-based on

Question 4

9+2 pattern

Answer 4

cilia and flagella have a core of microtubules in an extension of the plasma membrane

• 9 doublets of microtubules arranged in a ring connected by flexible proteins
• 2 single microtubules in the center

Question 5

flagella is anchored in the body by

Answer 5

basal body  
(similar structure to centriole)

Question 6

dyneins

Answer 6

large motor proteins in flagella and moving cilia

-allow them to bend