Minerals Definition Minerals comprise essential entities for organisms that are required as nutrients. These abiogenic substances occur naturally in usually various crystalline forms and have a definite chemical composition along with some distinct physical and chemical properties. What are Minerals? Minerals are formed of either the same elements or are present in combination with others. …
Adenine Definition Adenine is an organic purine nitrogenous base having the formula C5H5N5 that complementarily pairs with thymine and uracil in RNA and DNA respectively. What is Adenine? Nucleic acids like DNA and RNA are comprised of monomeric nucleotides. Each nucleotide is formed of a 5-Carbon sugar, phosphoric acid, and nitrogenous base. There are 5 …
Protoplasm Definition The word protoplasm has existed in various cultures with various meaning. The “first created item” was its meaning in Latin and is a liquid present in the cell. Its literal translation means mucus in German language. Proto means the first, pioneer and plasma means something which is casted. Thus, protoplasm can be defined …
Apomixis: Definition, Types, Process, and Examples Table of Contents Apomixis Definition Apomixis is an asexual reproduction method that produces embryos and seed without fertilisation (s). Apomixis is exemplified by apomictic parthenogenesis, in which an egg cell develops straight into an embryo without being fertilised beforehand. As a result, the children of apomictic parthenogenesis would be …
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Filtration: Definition, Types, Process, and Examples Table of Contents Filtration Definition Filtration is the process where fluid is segregated from another substance in other form, such as solid with the help of the pores in a medium used for separation. The medium is the filter which can be physical, chemical and biological. In the liquids …
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Chlorophyll: Definition, Structure, Function, and Examples Table of Contents Chlorophyll Definition In the year 1817, Joseph Caventou and Pierre Joseph gave the word Chlorophyll, which is present in plants and is responsible for the photosynthesis to take place and is green in color. Thus, chlorophyll can be divided into two parts where chloros means color …
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Epidermis: Definition, Structure, Function, and Examples Table of Contents Epidermis Definition The word epidermis can be broken into two parts and it is “epi” which means top most and derma means skin. Thus, epidermis is outermost layer of skin, which acts as the natural barrier and is seen in vertebrates and plants. Epidermis might comprise …
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Glucose: Definition, Importance, and Examples Table of Contents Glucose Definition The word glucose originates from a Greek word, which means sweetness and was given by Jean Baptiste Dumas in 1838. Its chemical formula is C6H12O6 and are carbohydrates to be precise are monosaccharide and can be easily broken, thus called simple sugars, however can fuse …
Biological Cell Defense: Definition, and Examples Table of Contents What is Biological Cell Defense? Antigens such as viruses, which were discussed in the last course, need organisms to develop a defensive mechanism. If this were not the case, bacteria, fungi, and viruses would proliferate uncontrollably inside other species, most of which would be extinct by …
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Double Helix: Definition, Structure, and Examples Table of Contents Double Helix Definition The term double helix describes the shape of our hereditary molecule, DNA. The DNA is made up of two strands twisted around each other that are connected by hydrogen bonds. The nucleotides are the monomeric unit of DNA and the language of the …
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