Why are plastids called colour forming organs?

The coloured organelles present within the cytoplasm of plant cells are known as plastids. They are responsible for the formation of color of any plant part like leaves, flowers, and fruits. In absence of light plastids are known as leucoplasts become colorless. The colorless plastids are known as leucoplasts generally present in the cell of … Read more

What is plasmalemma?

The protoplasm of the living cell remains surrounded by a bi-layered selectively permeable membrane known as plasmalemma or cell membrane. “Plasmalemma” is another, less common term for the cell membrane or plasma membrane. It functions as the outermost boundary of all living cells, separating the interior (cytoplasm) from the external environment. Here’s a closer look … Read more

The ranks of classification

Steps or ranks of classification: Kingdom   Phylum/Division     Class       Order        Family         Genus          Species

What is oxysome?

Oxysomes are small round bodies found in the fold of cristae in mitochondria. Oxysomes have stalks that help them to be attracted to mitochondria.

What is Taxa?

Taxa are the plural form of taxon which is a taxonomic group or taxonomic unit like species, family, order, etc.

Why is the definite number of chromosome remain unchanged heredity in the somatic cells of higher living beings?

The number of chromosomes is the identity of an organism. Each species has different number of chromosomes. The number of chromosomes should be maintained hereditarily otherwise abnormality will arise. During sexual reproduction of higher living beings, each gamete acquires half of the total chromosomes so that after fertilization the uniqueness of species is maintained in … Read more

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