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Is the undulipodia EXACTLY the flagella just in a eukaryotic cell?

I have a few questions about the undulipodia:

1) is it just the flagella in a eukaryote cell? Are there any differences between flagella and undulipodia?

2) Also what confused me is in my revision guide it says both the cilia and undulipodia are "structurally the same" then it goes on to say one is shorter than the other? Isnt that contradicting itself?

Reply 1

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Reply 2

Tarte Tatin

1) Flagella are found in bacteria, which are prokaryotes. They are structurally different to undulipodia and cilia; flagella are made of a spiral of protein called flagellin which is attached to a protein disk. The disk rotates and therefore spins the flagellum. It uses energy from ATP to do this.

2) It's not contradicting itself. They are structurally the same, as in they are both made of the same things. They are both made up of a cylinder that contains nine microtubules arranged in a circle and two microtubules in a central bundle. They are simply different sizes.