What is Centrosome The centrosome is described as the animal cell’s main microtubule-organizing center (MOTC). It comprises two centrioles surrounded by an electron-dense matrix called the pericentriolar material (PCM). The centrosome provides structure to the cell and plays a vital role in cell cycle progression. Centrosome It was discovered jointly by Walther Flemming in 1875 and Edouard Van Beneden in 1876 and later named and described in 1888 by Theodor Boveri....
Deserts are known for severe heat during the day, cool nights, and scarcity of water. To survive and reproduce in such challenging conditions, desert plants have developed unique adaptations. These adaptations are collectively known as xerophytic adaptations, and the plants possessing them are called xerophytes. Here are some key adaptations exhibited by xerophytes: Water Storage Mechanisms (Succulence) One of the most critical adaptations in desert plants is their ability to store water in the body....
Thank you for sharing the wonderful information.
What isEuglena Euglena is a motile, single-celled (unicellular) organism that is commonly found in aquatic habitats. They were among the first organisms in the kingdom Protista to be seen under the microscope, looking like a tiny particle making small movements in the water. Euglena is generally green in color due to the presence of chloroplast, the organelle that helps them to perform photosynthesis. Unlike the photosynthetic group, there is a parasitic group of Euglena that causes serious blood and tissue diseases such as African sleeping sickness and leishmaniasis in humans....
Thanks, guys. This was mind-opening and easy to understand.
If the above experiment (as well as Airy’s Failure) did not detect the earth’s movement, how come Focault’s pendulum does? Can’t prove truth via lies.
Suppose an object moves from one point to another such that its velocity at the initial point is different from that at the final point. Acceleration is defined as the rate at which the velocity changes. It is a vector quantity having both magnitude and direction. Acceleration To understand acceleration, let us take a numerical example. An object starts from rest and picks up speed such that its velocity becomes 5 m/s in 10 seconds....
An auxin is a group of growth hormones found in all plant tissues in varying concentrations. The name of this class of hormone comes from the Greek word ‘ auxein ‘, which means ‘to grow’ or ‘increase’. It was the first significant plant hormone to be discovered. In an experiment in the early 1880s, Charles Darwin and his son Francis observed that canary grass coleoptiles bend towards the light source when light is introduced from one direction....
This site is helpful.
Chandrasekhar Limit is an astrophysics term defined as the maximum possible theoretical mass of a stable white dwarf star. History The Chandrasekhar Limit is named after its discoverer Subrahmanyan Chandrasekhar. While on a ship to England for studying in Cambridge, in the fall of 1930, he did the major part of his work on the topic of discussion. He calculated the threshold value taking relativistic effects into account as well as the principles of Quantum Physics....
Deciduous forests in temperate regions are characterized by their rich biodiversity, towering trees, and evident seasonal changes. They are located in the Eastern United States, Canada, Europe, parts of Asia, and Japan. In the deciduous forest biome, temperatures range from below-freezing in the winter to 86°F on average in the summer. Trophic Levels in the Deciduous Forest Food Web Organisms at different trophic levels in the deciduous forest depend on each other for survival....
The glucose-alanine cycle, also known as the Cahill cycle or alanine cycle, is a biochemical pathway in which muscle proteins are degraded to produce more glucose for energy during conditions of intense muscular stress. Like the Cori cycle, it involves multiple organs and tissues, including muscle cells, the bloodstream, the liver, and even immune system cells, such as lymphoid organs. This cycle requires the presence of the enzyme alanine transaminase (ALT), which is exclusively found in these tissues....
This is quite informative. I strongly recommend your services to all science teachers.
Microtubules are one of the three principal components of the cytoskeleton, along with microfilaments and intermediate filaments. They are found throughout the cytoplasm in eukaryotic plant and animal cells. Like the other two cytoskeletal elements, microtubules play a crucial role in cell division, movement, and maintaining cell shape. In most cells, microtubules extend outward from the microtubule-organizing centers (MTOCs). In animal cells, the major microtubule-organizing center is the centrosome, located adjacent to the nucleus....
This is the best science site on the internet!!! Its helping me alot in my masters in molecular biology
it was great.
Definition: What is Plane Mirror? A plane mirror is a mirror that has a flat reflecting surface without any inward or outward curve. A ray of light falling on a plane mirror is reflected at the same angle as the angle of incidence. As a result, the image formed by the mirror is sharp and undistorted. This image is not real but virtual because the image formed behind the mirror by extending the diverging reflected rays backward....
What is Root Cap Root cap, as the name says, is a tiny cap-like structure present at the tip of growing root. It is formed by multiple layers of parenchyma cells. It protects the delicate root tips, as it passes through the soil in search of water and minerals. Due to constant friction with the soil particles, the root cap continually sloughs off and regenerates with the growth of the root system....
Shear modulus measures how a material resists shape changes when a force is applied parallel to its surface. Imagine pushing the top of a stack of books sideways while keeping the bottom fixed – the books slide over each other, showing shear deformation. The shear modulus indicates how resistant a material is to this type of deformation. Materials with a high shear modulus, like steel, are very rigid and hard, while materials with a low shear modulus, like rubber, are flexible and easily deformed....
A desert is a dry, barren landscape which receives an annual rainfall of less than 25 centimeters. Deserts cover about one-fifth of the total land area on earth. Although they are mostly hot, extremely cold regions are also classified under deserts as technically any land that is unsuitable for normal plant and animal growth are considered deserts. What are the Different Types of Desert Biome Desert ecosystems are grouped into four different types based on their geographical positions, and dominant weather patterns:...
