Botany is the branch of biology that deals with the study of plants, including their structure, physiology, reproduction, and biochemical processes.
Botany is a very vast and comprehensive science and is divided into various major branches such as morphology, histology, physiology, plant anatomy, genetics, cytology, taxonomy, ecology, paleobotany, plant geography, etc.
The scope of botany and its consequent importance is vast and immense. For the very existence of not only human beings but also all animals, plants are necessary.
The study of botany forms a necessary informational background for students preparing for careers in agriculture, horticulture, forestry, bacteriology, pharmacology, soil conservation, and other related fields.
Algae are plants of simple structures. There exist a wide variety of thalli in algae, particularly in the vegetative plant body. The different forms show a definite range. The range of thallus is from the simplest, which consists of non-motile…
Chloroplasts are double membraned rod-like oval or spherical cell organelles in the cytoplasm of most plant cells that help in photosynthesis. It is a green plastid containing chlorophylls. Animal cells normally lack plastids(all forms of plastids including chloroplasts). Several unicellular…
Mitochondria are the rod-shaped, ovoid, or thread-like, scattered minute particles in all aerobic cells of higher animals and plants. These are also present in algae, protozoa, and fungi. Bacterial cells, however, do not have mitochondria. They are associated with cellular…
Growth can be defined as the orderly increase in cellular constituents and results from the biosynthetic and energy processes. Growth also refers to the increase in mass of a single cell or to the increase in the size of a…
Ribosomes are membraneless, small, sub-spherical ribonucleoprotein particles. They are often found connected to the outside of the endoplasmic reticulum and nucleus. Ribosomes also occur freely in the cytoplasm (cytoplasmic matrix), chloroplasts, and mitochondria. In 1943, A. Claude has first isolated…
Lysosomes are tiny vascular membrane-bound vesicles involved in intracellular digestion. They contain a variety of hydrolytic enzymes that remain active under acidic conditions. Greek words “Lysis = digestive or break down, and soma = body“. During electron microscopic studies in…
Protoplast is a plant cell (organized mass) devoid of the cell wall. Protoplasts are useful for the study of physiological problems of the cells and isolation of organelles and the study of the exogenously applied material on cell activity. These…
The Golgi apparatus or the Golgi body or Golgi complex or simply the Golgi is a complex cytoplasmic structure having relation to cellular secretion. Which consists of vesicles and vacuoles, with smooth cisternae and a network of tubules. In 1898,…
Bryophytes are small, non-vascular land plants, which have multicellular jacketed sex organs. The defining features of bryophytes are that their life cycle features alternating haploid and diploid generations with a dominant, branched gametophyte stage. Introduction: Bryophytes are quite soft, and…
Dehiscence of the capsule and spore dispersal mechanism is the characteristic features of bryophytes. When the capsule is mature, it degenerates and liberated the spores. Some of the Bryophytes (Riccia, Corsinia) have a simple mechanism for the dehiscence of the…