Ciliary and flagellar movements, Biology

Assignment Help:

Ciliary and Flagellar Movements

Cilia and flagella or their derivatives occur in all animal phyla. They constitute the primary locomotor y structures of many protozoa and of several kinds of metazoan cells, for example, sperm, ciliated epithelia of invertebrates and vertebrates. Derivatives of cilia occur in a wide variety of photoreceptor, mechanoreceptor and chemoreceptor cells.

831_Ciliary and Flagellar Movements.png

Figure: Ciliary and Flagellar Movements

Cilia and flagella have a similar internal structure; the difference lies in their beating patterns which are illustrated in Figure. A flagellum like a tail of sperm, beats with a symmetrical undulation that is propagated as a wave along the flagellum.  A cilium, in contrast beats asymmetrically with a fast or dash-like stroke in one direction, followed by a slower recovery motion in which the bending cilium returns to the original position. In flagellar motion, water is propelled parallel to the long axis of the flagellum; in ciliary motion water is propelled parallel to the surface that bears the cilia.


Related Discussions:- Ciliary and flagellar movements

Express the term - aboral surface, In radially symmetric animals there is n...

In radially symmetric animals there is no posterior, or anterior, right sides to the animal. Rather we refer to two sides of the animal by referring to the location of the mouth. I

Explain spray-dried milk powder, Q. Explain Spray-dried milk powder? Th...

Q. Explain Spray-dried milk powder? The milk which is concentrated by the process of spray drying contains about 40- 45% total solids. Do you know how the dried milk powder i

Determine the stability of natural colorants in foods, Stability of Natural...

Stability of Natural Colorants in Foods Many attempts have been made to retain colouration by adding chemicals or modifying processing conditions. Ascorbic acid has been claime

What is sodium-potassium pump, Sodium-potassium pump A. The net flux of...

Sodium-potassium pump A. The net flux of sodium is from a region of high sodium concentration to a region of low sodium concentration. B. The net flux of potassium is from a

Vertebrate heart, VERTEBR A T E HEART Heart = Cardia. Most import...

VERTEBR A T E HEART Heart = Cardia. Most important organ of body. Main function is to pump the blood. Study of heart is cardiology. In heart auricles and ventricles pr

Investigations process of constrictive pericarditis, Q. Investigations proc...

Q. Investigations process of constrictive pericarditis? Electrocardiogram Low voltage complexes can occur. Left atrial enlargement may be seen. Atrial fibrillation occu

Signify the term - trachea, Signify the term - Trachea Part of the resp...

Signify the term - Trachea Part of the respiratory system in insects, vertebrates and some spiders. In invertebrates it comprise tubules carrying air directly from outside to t

Why is the occurrence of eyelids in amphibians, Why is the occurrence of ey...

Why is the occurrence of eyelids in amphibians in comparison to their absence in fishes and adaptation to terrestrial life? Eyelids associated to lacrimal glands protect and ke

Dermatitis, D i se a se s of Skin Der m a t i t i s De...

D i se a se s of Skin Der m a t i t i s Dermatitis is the inflammation of dermis and epidermis resulting in pain on palpation and erythema. E t iolo

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd