Differentiations of cell membrane
Write down the differentiations of cell membrane.
Expert
In some types of the cells, the cell membrane presents differentiations which are essential for the particular functions of cells. The most important differentiations are microvilli and structures for reinforcement of the adhesion or union between cells (or cell junctions).
Microvilli are multiple external projections of membrane similar to glove fingers. This differentiation is found in the cells of the tissues where it is beneficial to raise the size of the surface area in contact with exterior, for instance, in enteric (or intestinal) epithelium for absorption of nutrients.
Membrane differentiations for the reinforcement of the adhesion between cells take place mainly in the epithelial tissues where the need for impermeability and coverage requires cells to be ‘glued’ to neighboring cells. These differentiations can be desmosomes, interdigitations, tight junctions (zonula occludens), gap junctions and zonula adherens (adherens junctions).
Relating the chemical equation of aerobic cellular respiration which of the molecules does cell need and which molecules it will liberate during the process?
What is meant by the gastrulation? How during gastrulation first two germ layers are formed? Specify these germ layers?
Why fish circulation is classified as complete and simple circulation?
Define the term hemoglobin F? Why does fetus require different hemoglobin?
What are the main proteins that constitute the sarcomere? What is the function of those molecules in the muscle cells?
What are the substances which comprise the chromatin? What is the basic difference between chromosome and chromatin?
Give a brief explanation of primary consumers. Can food chain offering quaternary consumers without comprising secondary or tertiary consumers? Can a tertiary consumer of one chain be a primary or secondary consumer of another chain?
How the recovery modes work in the informatica?
Why is the AIDS treatment frequently done with the drug cocktail?
Write down the differentiation between taeniasis and cysticercosis?
18,76,764
1930106 Asked
3,689
Active Tutors
1461011
Questions Answered
Start Excelling in your courses, Ask an Expert and get answers for your homework and assignments!!