The main function of mitochondria is to help an organism produce energy from food through cellular respiration. A series of biochemical reactions of Kreb’s cycle occurs on the mitochondria of a cell. Another series of biochemical reactions occur through the electron transport chain, a series of electron carriers in the inner membrane of mitochondria. In … Read more
Adulterants are harmful chemical substances added to the food for color, taste, smell, and preservation purposes. Commercial colors, antibiotics, chemicals (carbide, formalin, heavy metal) are used vigorously in the foods of Bangladesh. These adulterant foods are injurious to health. The colors used in foods are not food grade at all, these destroy liver function and … Read more
A chromosome in which the centromere is located quite near one end of the chromosome is called an acrocentric chromosome.
The green color of plants are caused by plastid. Leucoplasts are non-pigmented in contrast to other plastids. They are usually found in the cells of the plant parts where usually sunlight does not reach; for example’ root, ovaries and embryo. As a result, the plant’s roots are colorless.
Because of their hardness, sclerites are called stone cells.
The aggregation of cells that are alike in origin and structure and collectively perform a special function is called tissue. Plant tissue can be grouped into two types: simple tissue (parenchyma, collenchyma and sclerenchyma) and complex tissue (xylem, phloem).
Cells that contain a well-organized nucleus within a nuclear membrane, well-organized chromosomes with DNA, histone protein are known as the eukaryotic cells.
Plastids are transmitted from generation to generation through a unique mode of inheritance. These plastids are called transmitted plastids for any given organism at any given time.