September, 2021

• 25 September

  Stomata: Structure, Types and Functions

  

  Like all other living beings plants have to exchange gaseous molecules. Animals have noses that help them to breathe in and breathe out to exchange gases. But what about plants? How do plants breathe in and breathe out? Well, plants have stomata or tiny pores on their epidermis that help …

  Read More »
• 24 September

  Mutation Breeding: Material Selection, Dosage, Procedure & Precaution

  

  Mutation is the sudden change in genetic markup of an organism. Inducing mutation in an organism is a very complex process. You need to be extra careful. One mistake and the organism is as good as dead.  Despite the danger of overdosing mutagens there is the fact that the mutation …

  Read More »
• 21 September

  River Ecosystem in Bangladesh: Bangshai River (Part 2)

  

  May be we all know that we are the part of a ecosystem. The term ecosystem may be short but it’s expanse is very wide from desert to polar region, pond to ocean, grassland to forest. All sorts of organisms do interact and mixes up in a ecosystem and the …

  Read More »
• 21 September

  Mutagenic Agents: Types, Mechanism & Irradiation Breeding

  

  Mutation breeding or mutagenesis is one of many great inventions of the 20th century. Until 1927, people thought mutation only occurred naturally. But to their surprise, they discovered that humans could even induce mutation artificially. And now in the age of biotechnology almost every plant science lab uses recombinant DNA …

  Read More »
• 20 September

  Archaea: Definition, Characteristics, Classification and Importance

  

  Archaea are single celled organisms without a nucleus and with distinct structural, physiological and evolutionary characteristics. They inhabit a huge variety of habitats, including extreme environments. Archaea form one of the three domains of life; the others are bacteria and eukaryotes. The archaea are clearly recognizable as a unique and …

  Read More »
• 20 September

  River Ecosystem in Bangladesh: Bangshai River (PART 1)

  

  Do you know what an ecosystem actually is! What is it’s types, components, threats towards it! In this article we are about to discuss all this stuffs. An ecosystem is a community where living and nonliving material become mix-up. It can be a Geographical area where plants, animals and other …

  Read More »
• 19 September

  Golgi Apparatus: The Traffic Police of Cell

  

  Golgi apparatus is ubiquitous in cells. They are found in living cells of both animals and plants and are a dynamic structure. In animals, Golgi bodies usually appear morphologically as a cluster in one part of the cell and are interconnected with one another through tubules like a fibrous network. …

  Read More »
• 18 September

  Mutation Breeding: Definition, History & Types

  

  If you are a fan of Marvel comics, you have almost certainly seen the movie X-Men. Humans with superpower abilities called “mutants”, appear in this film. While human mutants with superpowers are only seen in movies, in real life mutation in humans results in mere abnormalities. For instance, having six …

  Read More »
• 4 September

  Fungi: Sexual Reproduction

  

  Fungi are microscopic/macroscopic eukaryotic and heterotrophic organisms exhibiting growth on various natural and synthetic substrates and are capable of continuing their function almost indefinitely. Unlike other microorganisms such as algae, fungi lack the chlorophyll necessary for photosynthesis and must therefore live as parasites or saprobes. About 80 000 to 1,20,000 …

  Read More »
• 3 September

  Fungi: Asexual Reproduction & Reproductive Structures

  

  The fungi constitute a group of living organisms devoid of chlorophyll. They resemble simple plants in that, with few exceptions, they have definite cell walls, they are usually nonmotile, although they may have motile reproductive cells, and they reproduce by means of spores. A spore (Gr. spora = seed, spore) …

  Read More »