Amitosis cell division is a form of direct cell multiplication where the nuclear and cytoplasmic contents of parent cell split between the two daughter cells via a simple cell constriction. It is a kind of growth and multiplication process that predominantly occurs in the acellular or unicellular organisms such as algae, bacteria, cyanobacteria, protozoans and …
The life cycle of Plasmodium species generally exist within two phases (asexual and sexual) or require two living hosts (vertebrates and mosquito). Plasmodium’s asexual phase begins within the female Anopheles mosquito’s stomach, while the sexual phase starts within the human beings’ hepatic cells. Thus, the life cycle of Plasmodium mainly involves two hosts, namely a …
The difference between apoptosis and necrosis is mainly due to factors like: Cell death: Apoptosis is a type of cell death, which occurs by the self-annihilation of the cell. Oppositely, necrosis is a form of focal cell death caused due to the environmental perturbations. Occurrence: Apoptosis occurs to maintain the proper functioning of the cell …
Phylum Porifera is placed in the kingdom Animalia and regarded as the oldest animal group. The term Porifera merely refers to pore bearers that include Poriferans or pore bearing animals. Poriferans or sponges possess small pores on their entire body and some wide openings. The members of Phylum Porifera are metazoans that show a cellular …
The physiology of excretion is the study of different metabolic activities that occur inside our body, and it gives an idea of which organs and tissues facilitate the excretion mechanism. Sometimes, we get confused with the terms excretion and egestion. Excretion is a mechanism of eliminating metabolic wastes from the body, while egestion is the …
Gluconeogenesis occurs in a reverse manner of glycolysis, which produces glucose by the precursors like pyruvate, lactate, glucogenic amino acids. It is sometimes called Neoglucogenesis. It is a ubiquitous or universal pathway, which occurs in humans, animals, plants, fungi and other living organisms. Gluconeogenesis has only three irreversible steps opposite the glycolysis pathway, while the …
Cytoplasmic inheritance also termed as maternal inheritance or maternal effect. A cytoplasm comprises some autonomous organelles like mitochondria and plastids that possess their own genetic material. Mitochondria is present in both animal and plant cell, whereas plastids are only found in the plant cell. As we know, nucleic acids like DNA and RNA are responsible …
The qualitative analysis of lipids helps us determine the presence or absence of lipid, depending upon the colour change. Lipids are the organic biomolecules soluble in non-polar solvents like chloroform, ether, acetone etc. and insoluble in water. In nature, different varieties of lipids show structural diversity among each other. Some common lipids are fatty acids, …
The qualitative analysis of amino acids is characterized by the colour change, precipitation, ring formation etc. based on which the amino acids can be detected and classified. The colour change is due to the change in the moiety or the structural configuration, in which the functional group of amino acid react with the specific reagent …
The qualitative analysis of carbohydrate is the significant test for detecting and classifying carbohydrates, depending on the colour change followed by chemical reactions. Carbohydrate is an organic biomolecule that has a chemical formula Cm (H2O) n. The carbohydrate consists of three atoms, viz. carbon, hydrogen and oxygen as the main constituent, where the ratio between …