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Dec 18, 2016 · Biology Dictionary provides definition, examples and quiz for common biology terms, including molecular biology, cell biology, genetics, ecology and more!
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- Osmosis Definition
- Solvents and Solutes
- Types of Solutions
- How Osmosis Affects Cells
- Examples of Osmosis
- Related Biology Terms
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Osmosis is a type of diffusion that, in biology, is usually related to cells. Diffusion is when molecules or atoms move from an area of high concentration to an area of low concentration. Osmosis is when a substance crosses a semipermeable membrane in order to balance the concentrations of another substance. In biology, this is usually when a solve...
Osmosis deals with chemical solutions. Solutions have two parts, a solvent and a solute. When solute dissolves in a solvent, the end product is called a solution. Salt water is an example of a solution; salt is the solute, and water is the solvent.
In biology, there are three different types of solutions that cells can be in: isotonic, hypotonic, and hypertonic. Different types of solutions have different impacts on cells due to osmosis.
Osmosis affects plant and animal cells differently because plant and animal cells can tolerate different concentrations of water. In a hypotonic solution, an animal cell will fill with too much water and lyse, or burst open. However, plant cells need more water than animal cells, and will not burst in a hypotonic solution due to their thick cell wa...
Osmosis is how plants are able to absorb water from soil. The roots of the plant have a higher solute concentration than the surrounding soil, so water flows into the roots. In plants, guard cells are also affected by osmosis. These are cells on the underside of leaves that open and close to allow gas exchange. When the plant’s cells are full of wa...
Diffusion– a process by which molecules move from areas of high concentration to areas of low concentration. Osmosis is one type of diffusion.Solution– a mixture made up of two or more substances where one substance, a solute, is dissolved into another substance, a solvent.Semipermeable– also known as selectively permeable, this means that only certain substances can pass through a barrier. Cell membranes are semipermeable.Cell– the smallest unit that makes up a living organism. It includes various different parts called organelles that have functions such as storing genetic material and making proteins and energy.1. When a cell contains a lower concentration of solute than the solvent surrounding it, that cell is said to be in what kind of solution? A. Hypertonic B. Hypotonic C.Isotonic 2. Isotonic conditions are ideal for which cells? A. Plant cells B. Animal cells C. Both D.Neither 3. What happens to an animal cell in a hypotonic solution? A. There is no ...
Apr 27, 2017 · Cells are the basic unit of life. In the modern world, they are the smallest known world that performs all of life's functions. All living organisms are either single cells, or are multicellular organisms composed of many cells working together.
May 26, 2022 · Biology Definition. Biology is the branch of science that primarily deals with the structure, function, growth, evolution, and distribution of organisms. As a science, it is a methodological study of life and living things.
Jan 14, 2024 · Homeostasis is a fundamental concept in biology that refers to the self-regulating process by which biological systems maintain stability while adjusting to changing conditions. This stability, or equilibrium, is essential for organisms to function effectively and efficiently.
Aug 17, 2024 · Biology, study of living things and their vital processes that deals with all the physicochemical aspects of life. Modern principles of other fields, such as chemistry, medicine, and physics, for example, are integrated with those of biology in areas such as biochemistry, biomedicine, and biophysics.
Sep 21, 2021 · All groups of living organisms share several key characteristics or functions: order, sensitivity or response to stimuli, reproduction, adaptation, growth and development, regulation, homeostasis, and energy processing. When viewed together, these eight characteristics serve to define life.
