Online Microbiology Notes

Mutualism Interaction- Definition, Symbiosis, Types and Examples

February 11, 2021February 8, 2021 by Anupama Sapkota

Mutualism Definition A mutualism is a form of interaction between organisms of two or more species where all the species benefit from the interaction. The benefits from the interaction can be protection, pollination, dispersal, or provision of nutrients. In most cases, mutualism exists between a pair of species, but some interactions might exist between more than two species. Mutualism can …

Trophic level- Definition, food chain, food web, pyramid, examples

February 5, 2021 by Anupama Sapkota

Trophic level Definition Trophic level is the position within a food chain that is occupied by a group of organisms in an ecosystem. The classification of organisms into the different food chains is based on their feeding behavior. Trophic level is a step in the nutritive series of food chains which in some cases might form a complicated path called …

Eutrophication- Definition, Causes, Types, Process, Examples

February 5, 2021 by Anupama Sapkota

Eutrophication Definition Eutrophication is the condition of a gradual increase in the concentration of phosphorus, nitrogen, and other plant nutrients in a water body resulting in excessive plant and algal growth. Eutrophication is one of the most widespread challenges faced by freshwater systems and also has a long history in terms of water management. It is a natural process that …

Monocot vs Dicot Seed- Definition, Structure, 10 Differences, Examples

February 4, 2021 by Anupama Sapkota

Definition of Monocot Seed Monocot seeds are defined as seeds that consist of a single (mono) embryonic leaf or cotyledon. The structure of the seed and the number of cotyledons present in the seed are the most important characteristics that allow the differentiation of monocots and dicots. The seed pod of most monocots is trimerous (exist in three parts) as …

Monocot vs Dicot Flower- Definition, Structure, 6 Differences, Examples

February 4, 2021 by Anupama Sapkota

Definition of Monocot Flower Monocot flowers are condensed shoot regions that are specialized for the function of sexual reproduction. The most definitive characteristic of monocot flowers is that these flowers usually have flower parts that occur in threes or multiples of threes. The observation of flowers and their parts; thus, can be used as a method to differentiate between monocot …

Monocot vs Dicot Stem- Definition, Structure, 22 Differences, Examples

February 3, 2021 by Anupama Sapkota

Definition of Monocot Stem Monocot stem is a circular-shaped hollow axial part of the plant which gives rise to nodes, internodes, leaves, branches, flowers with roots at the basal end. The size of stems varies in different species of monocots, but the size is barely ever as large as dicots. Monocot stems are herbaceous as they lack secondary growth due …

Monocot vs Dicot Roots- Definition, Structure, 18 Differences, Examples

February 2, 2021 by Anupama Sapkota

Definition of Monocot Root Monocot roots are fibrous or adventitious roots consisting of a wide network of thin roots and root fibers that originate from the stem. Monocot roots are highly variable depending on the plant species and the age of the plant. But most of the monocot plants are herbaceous with weak cambium that cannot hold woody tissues. The …

Watson and Crick DNA Model

February 3, 2021February 1, 2021 by Yashaswi Sharma

DNA stands for Deoxyribonucleic acid which is a molecule that contains the instructions an organism needs to develop, live and reproduce. It is a type of nucleic acid and is one of the four major types of macromolecules that are known to be essential for all forms of life. DNA Model The three-dimensional structure of DNA, first proposed by James D. …

DNA- Structure, Properties, Types, Forms, Functions

February 3, 2021February 1, 2021 by Yashaswi Sharma

DNA stands for Deoxyribonucleic Acid which is a molecule that contains the instructions an organism needs to develop, live and reproduce. These instructions are found inside every cell and are passed down from parents to their children. It is a nucleic acid and is one of the four major types of macromolecules that are known to be essential for all forms …

Monocot vs Dicot Leaves- Definition, Structure, 13 Differences, Examples

February 2, 2021February 1, 2021 by Anupama Sapkota

Definition of Monocot Leaves Monocotyledonous leaves are narrow and elongated with parallel venation, which is often used to distinguish monocotyledonous plants from dicots. Monocot leaves are isobilateral as both the surfaces of the leaves are similar to the same coloration. The primordial monocot leaves consist of a proximal leaf base or hypophyll and a distal hyperphyll. The hyperphyll is the …