GENERAL HISTOLOGY

EPITHELIUM

CILIA

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Cilia and flagella are ____
A
Intermediate filaments
B
Microfilaments
C
Microtubules
D
Phospholipids
Explanation: 

Detailed explanation-1: -Cilia and flagella are conserved, motile, and sensory cell organelles involved in signal transduction and human disease. Their scaffold consists of a 9-fold array of remarkably stable doublet microtubules (DMTs), along which motor proteins transmit force for ciliary motility and intraflagellar transport.

Detailed explanation-2: -Cilia and flagella are alike in that they are made up of microtubules. Cilia are short, hair-like structures that exist in large numbers and usually cover the entire surface of the plasma membrane. Flagella, in contrast, are long, hair-like structures; when flagella are present, a cell has just one or two.

Detailed explanation-3: -Abstract. The motile cilium is a complex organelle that is typically comprised of a 9+2 microtubule skeleton; nine doublet microtubules surrounding a pair of central singlet microtubules.

Detailed explanation-4: -These microscopic hair-like appendages help the cell in locomotion. Prokaryotic flagella are made up of a protein called flagellin and not microtubules.

Detailed explanation-5: -Cilia and flagella are motile cellular appendages found in most microorganisms and animals, but not in higher plants. In multicellular organisms, cilia function to move a cell or group of cells or to help transport fluid or materials past them.

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