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Q. What are the difference between plasma membrane and cell wall?
Plasma membrane and cell wall is not the same thing. Plasma membrane, also known as cell membrane, is the external membrane common to all living cells and it is made of embedded proteins, phospholipid bilayer and some appended carbohydrates.
Because cell membranes are fragile, in some kinds of cells there are even outer structures that support and defend the membrane, like the cellulose wall of plant cells and the chitin wall of some fungi cells. Most bacteria also present an external cell wall made of peptidoglycans and other organic substances.
What are some examples of phenotypical characteristics that present two or more varieties and of phenotypical features that do not vary? In relation to the genes correspondent to t
The primary factors that influence the formation of these biomes are climatic, like precipitation, temperature, seasonal extremes and winds. However, topography and light are also
Q. Reasons for increasing popularity of dental implants? There are various reasons for increased popularity of dental implants. With the rapid development and evolution of impl
Cytology of Endosperm Normally the young endosperm is triploid as it is formed by the fusion of three haploid nuclei (male gamete + upper polar nucleus + lower polar nucleus)
Explain about the Dietary Calcium Requirements? There are variations in the amount of calcium recommended by different advisory groups. This is mainly due to the different crit
Tracheal Gills - Respiration In many species of aquatic insects the air in the trachae is replenished by diffusion of oxygen via tracheal gills. Many aquatic insects carry a t
Determine the Role as antioxidant? Some carotenoids, in addition to serving as a source of vitamin A, have been shown lo function as antioxidants. Studies show that lycopene. (
Q. How are the nervous and the symmetry system characterized in echinoderms? Adult echinoderms, along with cnidarians, are the animals that present radial symmetry that is thei
Ciliated Protozoan Ciliates form the largest and the most homogenous group of protozoans. They are placed under one phylum Ciliophora and evidence indicates that its members s
i want notes for respiration in humans full qand to the point si i can learn them
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