Mechanism of movements, Biology

Mechanism of Movements

Amoeboid movement derives its name from the locomotion of amoeba. It involves extensive changes in cell shape, flow of cytoplasm and pseudopodial activity. Ciliary locomotion is the characteristic way in which ciliated protozoans such as Paramecium move. However, cilia are found in all animal phyla and serve a variety of functions. For example, cilia set up currents that effect movement through the water vascular systems of echinoderms. The respiratory tract of air breathing vertebrates is lined by the ciliated cells that slowly remove foreign particles that lodge on their surfaces. The sperms move with the aid of tail which in principle acts like a cilium. Muscular movement is the fundamental mechanism used in the majority of animals for a variety of movements. Muscle has the ability to exert a force by shortening, called 'muscle contraction'. This force is used for a variety of purposes. In this unit you will read about mechanism of amoeboid movement and ciliary movement structure of the muscle and the mechanism of muscle contraction.

Posted Date: 1/16/2013 3:15:58 AM | Location : United States







Related Discussions:- Mechanism of movements, Assignment Help, Ask Question on Mechanism of movements, Get Answer, Expert's Help, Mechanism of movements Discussions

Write discussion on Mechanism of movements
Your posts are moderated
Related Questions
Q. Explain Cytological Evidence? Cytology is the study of the morphology and physiology of cells. The information about the chromosome number, shape and pairing at meiosis is u

How are the antibodies against the Rh factor formed? The Anti-Rh antibodies are made by humoral immune response. When the Rh- individual makes contact with the Rh factor this i

Explain the Klebsiella - Characteristics of Bacteria? It is gram negative, non-sporulating, non-motile and non-pigmented rod, which is commonly found in soil or water. It is th

Q. What is the kind of reproduction that occurs in roundworms? What usual feature do nematode sperm cells have? Nematodes reproduce sexually. The nematode sperm cell does not h

MIDDL E EAR - Protected by tympanic bone. It's cavity is tympanic cavity. It is lined by simple cilliated columnar epithelium. It is connected to naso pharynx by Eu

Human Genome Initiative is the collective name for number of projects begun in 1986 by Department Of Energy (DOE) to  (1) create an ordered set of DNA segments from known chrom

Yeast is cultured in the presence of radioactive phosphate and the following biological molecules are purified. Which molecule should be most radioactive? A. An oligosaccharide B.

Define the term - soil heterogeneity The ratings seem rather arbitrary and empirical but are meant to get a reasonable yield. Outputs for different doses of fertilizers are obt

What are the disadvantages of protozoa

Explain nutritional science Dietitians are in a 'helping' profession because the services they provide are beneficial to individuals  and society and dedicated to improving th