Notes on the meaning, structure and function of Endoplasmic reticulum. Endoplasmic reticulum occurs in all the eucaryotic cells except RBC of mammals. It forms an intercommunicating system of channels between nuclear membrane and cell membrane.
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Notes on the meaning, structure and functions of Mitochondria. Mitochondria are present in the living eucaryotic cells as membrane bound organelles essential for cellular respiration.
Notes on the meaning, structure and functions of Plastids. Plastids are large cytoplasmic organelles, enclosed by a double membrance. They are mostly found in plants with exception of some lower groups like fungi. Few animals, like protozoan flagellates, also contain these.
What is the structure and function of cell membrane? The outer limiting membrane present in most animal cells is plasmamembrane, plasmalemma or cell membrane. It lies between the cell wall and the cytoplasm in plant cells.
Brief notes on the structure and function of cell-wall. The cell wall is very thin and delicate in the beginning. As the cell grows, it is stretched and new substances are deposited on the primary cell wall. The various substances found on the cell wall are:
Every syllogism has three and only three terms. These terms are major term, minor term and middle term. Each term occurs twice in the syllogism. In order to identify a term in a syllogism, we have to take in to account the conclusion of the given argument.
Logic is concerned with the analysis and evaluation of arguments. For this we should be able to recognise and identify arguments. It is a fact that our arguments are not always available in a neatly stated form.
A bacteria contains an outer cell envelope which consists of: 1. Outer cell wall 2. Inner cytoplasmic membrane Cytoplasm is present inside the cell envelope.
The pituitary gland lies in a bony hollow at the base of the brain. It is approximately 15 mm long and 5 mm across. It is attached to the brain by a stalk or nerve fibers, which is continuous with the hypothalamus above, behind the optic chiasm.
Food digestion also involves a set or accessory organs which carry out the processes of digestion smoothly. In addition to the tongue, the teeth and the salivary glands, other structures which act as accessory to the digestive system are: (1) The liver, gall bladder and bile ducts 2. The pancreas.