Explain the term microfilaments, Biology

Assignment Help:

Explain the term Microfilaments ?

Microfilaments are fine fibrils, only 7 nm in diameter, composed of a protein called actin. Actin is one of the two major proteins involved in muscle contraction. Energy for muscle movement is provided by interaction of actin with myosin, another protein also found in muscle, and the breakdown of ATP (adenosine triphosphate).

In eukaryotic cells, microfilaments are responsible for cell locomotion, cell division, amoeboid movement, and cytoplasmic streaming.

Cytoplasmic streaming is a continuous or back-and-forth movement of cytoplasm that is thought to circulate oxygen and nutrients, remove wastes in large cells, and to shift cell contents in association with amoeboid movement.

 


Related Discussions:- Explain the term microfilaments

Explain the classification of carbohydrates, Define Classification of Carbo...

Define Classification of Carbohydrates? Carbohydrates are defined as polyhydroxy aldehydes or ketones or substances that produce such compounds when hydrolyzed. Carbohydrates a

In the phase when the cell is not dividing interphase, Q. In the phase when...

Q. In the phase when the cell is not dividing interphase is there activity within the cell nucleus? In the interphase there is intense metabolic activity in the cell nucleus th

Electron acceptor, Electron acceptor is a molecule which forms the part of...

Electron acceptor is a molecule which forms the part of the electron transport system which transfers electrons ejected by chlorophyll during the process of photosynthesis. Part o

What is allantois, What is Allantois One of the extraembryonic eggs foun...

What is Allantois One of the extraembryonic eggs found in the amniote animals. The allantois contains the metabolic wastes created by the developing embryo. May also be involved

What do you know by hemodynamic responses, Q. What do you know by Hemodynam...

Q. What do you know by Hemodynamic Responses? Reduced exercise capacity roughly reflects impaired LV function, and may contribute its prognostic value to this association. Comp

Specify the term in detail - swim bladder, Specify the term in detail - Swi...

Specify the term in detail - Swim bladder. Found in bony fish, this gas-filled chamber is used to main neutral buoyancy. Oxygen in blood is added or removed as required. Swim b

Introduction to avian infectious diseases, Poultry birds are affected with ...

Poultry birds are affected with many types of ailments; broadly these are classified on the basis of etiology as non-infectious and infectious conditions. Non-infectious diseases a

Explain systolic murmurs in heart diease details, Explain Systolic Murmurs ...

Explain Systolic Murmurs in heart diease details? Definition: Murmurs is a series of auditory vibrations that are more prolonged than a sound. Causes: High-energy turbulence ca

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