Definition: What is Ampere’s Law? Ampere’s law, or Ampere’s circuital law, is a mathematical statement used in electromagnetism that gives a relationship between a current and the magnetic field it generates. The magnetic field produced by an electric current is proportional to the magnitude of the current with a proportionality constant equal to the permeability of free space (μ o ), a universal constant in physics. Its value is 4π X 10 -7 H/m....
What is Cytoskeleton The cytoskeleton is a cellular component that helps to maintain the shape and internal organization of a cell. It also provides mechanical support, enabling the cells to carry out essential functions like division and movement. The cytoskeleton is not a single component. Several different components work together to form it. The cytoskeleton is present in all types of cells – animals and plants. Just like the skeletal system of our body, the cytoskeleton is the skeletal system of a cell....
When an external force acts on an oscillating system, it can gradually cause the system to lose energy. This energy loss leads to a decrease in amplitude over time, ultimately creating a state of equilibrium. Damping refers to reducing or dissipating the energy of oscillations or vibrations in a system. The energy is dissipated usually in the form of heat, which leads to a gradual reduction in the motion of the oscillating system....
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Meristematic tissue, commonly called meristem, is a group of undifferentiated cells that remain young and divide indefinitely throughout plant life. Cells in the meristem can develop into any tissues and organs in plants. Thus, meristems are the region of active growth in plants. They are mainly found in the shoot and root apices that give rise to new organs and allow plants to grow and repair worn-out tissues. In 1858, Carl Wilhelm von Nägeli coined the term ‘meristem’....
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This experiment is currently seen as not sufficient to support abiogenesis. See Stephen C. Meyer, James Tour.
According to Faraday’s law, a current-carrying wire produces a magnetic field. If the current changes with time, the magnetic field will also change. Suppose the wire is wound into a coil and another coil is brought closer to it. Then, the changing magnetic field in the first coil will induce an emf (electromotive force) in the second. This phenomenon is known as mutual induction. The property that links the two coils by a common magnetic field is known as mutual inductance....
What is the practical use of Rubens tube in everyday life? If it is only demonstrating sound waves as pressure waves, this can easily be proved by a slinky and there would be no use of such apparatus.
The taiga biome, also known as the boreal forest or snow forest, is a vast terrestrial ecosystem that spans the northern regions of North America, Europe, and Asia, covering Canada, China, Finland, Japan, Norway, Russia, Sweden, and the USA. Characterized by its cold winters and relatively short growing seasons, the taiga biome harbors various organisms that survive and thrive in these harsh conditions. Trophic Levels in the Taiga Biome The diagram below shows the interdependence of organisms at the different tropic levels in the taiga biome....
Science is fascinating, or so we all have been told. The truth is, it is not always easy to comprehend the laws of physics or the workings of molecules. Here at ScineceFacts.net, you will find scientific articles written in a comprehensible manner so science can be as interesting as it should be. Our Authors Satyam Bhuyan Satyam Bhuyan holds a Ph.D. in Mechanical Engineering and has an in-depth passion for science, especially physics and materials science....
In 1913, Niels Bohr proposed the shell model of an atom. He postulated that the subatomic particles, protons, and neutrons reside within the atomic nucleus, whereas the electrons revolve around the nucleus in specific orbits or shells. Later in 1925, some scientists put forward another theory, regarding the position of electrons in an atom, named the electron cloud model. What Is An Electron Cloud? As stated, previously electrons were thought to occupy some fixed orbits around the nucleus....
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Matter is composed of molecules that are either tightly or loosely packed. If the molecules are tightly packed, they cannot move freely, and matter cannot be compressed easily. For example, the molecules in solids and liquids are dense and do not move freely. Hence, solids and liquids are not easily compressible. On the other hand, if molecules are loosely packed, they can move freely, and matter can be compressed. Gas molecules move freely, and gas is easily compressible....
What is an Isotonic Solution If two solutions contain the same solute and water content, they are considered isotonic to each other (‘iso’ in isotonic means ‘same’ or ‘equal’). It is generally measured with respect to the cytoplasmic concentration or tonicity of the cell. Here, the solute concentration, i.e., osmolarity (solutes per liter), remains equal on both sides of the cell membrane. Some of the most commonly used isotonic solutions are normal saline with 0....
The lactose (lac) operon is a group of genes involved in lactose metabolism. They are found in bacteria, most notably Escherichia coli (E. coli), that use lactose as the alternate energy source when glucose is absent. The bacteria express the lac operon genes to use lactose, which encodes key enzymes for lactose uptake and metabolism. For performing these functions and activating the lac operon, the following two conditions are necessary:...
Protein synthesis, as the name implies, is the process by which every cell produces specific proteins in its ribosome. In this process, polypeptide chains are formed from varying amounts of 20 different amino acids. It is one of the fundamental biological processes in both prokaryotes and eukaryotes. This is a vital process, as the proteins formed take part in every major cellular activities, ranging from catalysis to forming various structural elements of the cell....
What is a Proton A proton is one of the three main subatomic particles that make up an atom. The other two being neutron and electron. The common symbol for a proton is p or p + . The nucleus of a hydrogen atom or H + ion is an example of a proton. The word ‘proton’ came from the Greek word meaning ‘first’. Ernest Rutherford used the term for the first time in 1920 to describe the nucleus of hydrogen....
Tight junctions, alternatively known as occluding junctions, or zonula occludens, are intercellular cell-cell adhesion complexes found between two adjacent epithelial cells. They exclusively occur near the apical regions of these cells, thus forming a permeability barrier between the intra- and extracellular environment. Epithelial cells line the outer surfaces of organs and blood vessels throughout the body and the inner cavities of various internal organs. So, tight junctions are also present in multiple locations....
Cells must remain turgid to function correctly. A well-watered plant grows and reproduces, producing fruits and flowers. In contrast, a plant not watered for a few days wilts and die. It happens because water moves out of the cell, causing the cell to lose turgidity. Water moves in or out of the cell based on the solution’s solute concentration in which the cell remains suspended. Osmosis is the process that defines water’s net movement across a semipermeable membrane from a low solute concentration region to a high concentration region....
