Question

Actin filaments and other proteins are responsible of amoeboid movement of important cells such as macrophages. How can the cell proceed in one direction by amoeboid movement, and what does it happen when direction must be changed? 2. Microtubule dynamics (polymerization and depolymerization) is important in many processes, mention at least two of them and specify the function of microtubules in ciliary beating  

Answer 1

Answer: Amoeboid movements are made by some types of cells , example, macrophages, Amoeba. . These movements are made by pseudopodia, that are formed by proto plasnic appendages, formed due to cytoplasmic streaming. Streaming of Cytoplasm with the help of Actin filaments and proteins valign the cell in particular disections required by the cell A). The two polymerization and depolymerisation processes are the following: - Formation of glycogen from glucose in and mals Ipolymerisation ovo formation of grecose from glycogen Storage when required : Depolymerisation formation of fats from free fatty acids: Polymerisation fatty acids from Depolymerisation. fats formation of requirement : an

• The of that the cilia are formed by arrangement micootubules formed of filamentous protein help in ciliary movements for propelling cell in forward direction.