What is a specialized cell and what is an unspecialized cell?
2017年3月7日 · Refer to the explanation. A specialized cell has a unique and important structure to perform a special job e.g. root hair cell has a long protrusion for more absorption of water and minerals (like magnesium and nitrate ions). Non specialized cells contain the basic organelles for performing normal tasks. An example is stem cells. This diagram shows the organells of a non specialised animal ...
What are specialized cells? + Example - Socratic
2018年6月8日 · A specialized cell has a unique and important structure to perform a special job e.g. root hair cell has a long protrusion for more absorption of water and minerals (like magnesium and nitrate ions). For more information about specialized and non- …
How is cell specialization achieved in multicellular organisms?
2014年6月17日 · Cellular differentiation is the process by which a less specialized cell becomes a more specialized cell type. Differentiation occurs numerous times during the development of a multicellular organism as the organism changes from a simple zygote to a complex system of tissues and cell types. Differentiation is a common process in adults as well: adult stem cells divide and create fully ...
What are the functions of sponges' specialized cells ... - Socratic
2016年11月16日 · There are several cells in body of sponges and they are responsible to perform different functions. Archaeocytes are totipotent cells which can differentiate into other cell types within the body of sponge. Moreover choanocytes also give rise to germ cells. Choanocytes are flagellated cells which line the spongocoel and form the so called 'choanoderm': the layer represents endoderm of a ...
Are white blood cells specialized cells? - Socratic
2017年4月6日 · White blood cells are definitely specialised to provide us immunity: moreover the cells are motile, able to develop pseudopodia. There are different types of white blood cells(WBC)/leucocytes. The distinction is done first, on the basis of granules: there are granulocytes and cells without are agranulocytes. Now the names: remember that first three are granulocytes and last two are ...
Cellular Specialization - Biology - Socratic
2015年12月5日 · All these tissues are specialized and have a specific function each.A cell has to be transformed into one of the four types to be part of the tissue or it will not have the proper receptors that enable it to connect to this tissue and perform the functions it does.
The retina has two specialized cells, one gives you image ... - Socratic
2016年3月21日 · The retina has two types of specialized cells called photoreceptors: rods and cones. The rods are most sensitive to light and dark changes, shape and movement and contain only one type of light-sensitive pigment. Rods are not good for color vision. In a dim room, however, we use mainly our rods, but we are "color blind." Rods are more numerous than cones in the periphery of the retina. There ...
What is the role of RNA in cell differentiation? | Socratic
2018年1月21日 · RNA plays a big role in translating genetic information into the molecular machines and structures of the cell and also making proteins responsible for cell differentiation. It also regulates the activity of genes during cellular differentiation.
Why do prokaryotic cells have no nucleus? - Socratic
2014年7月23日 · With the evolution of multicellularity, there was a need for multiple specialized cell types, a need to be able to package proteins into vesicles, exocytosis, endocytosis and long range communication. All of this is enabled by the appearance of membranes - a nuclear envelope that is continuous with the ER and vesicular budding into the Golgi.
How can water pass through the lipid bilayer? - Socratic
2015年6月27日 · Water passes through the lipid bilayer by diffusion and by osmosis, but most of it moves through special protein channels called aquaporins. > Water can diffuse through the lipid bilayer even though it's polar because it's a very small molecule. Water can also pass through the cell membrane by osmosis, because of the high osmotic pressure difference between the inside and the outside the cell ...