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AQA. Adaptations, interdependence and competition - AQA Communities. The abundance and distribution of organisms in an ecosystem is determined by biotic and abiotic factors. Animals and plants have...
- Decomposition
How the rate of decay affects key factors; Use of compost...
- Levels of Organisation
Levels of organisation; Predators and prey; Experimental...
- Decomposition
interdependence. Refers to the fact that all organisms that live in an ecosystem depend upon each other, for food, protection, shelter, etc, in order to survive. between...
4 days ago · Osmosis is a specialized form of diffusion that specifically involves the movement of solvent molecules, predominantly water, through a semipermeable membrane. This movement occurs from an area of lower solute concentration to an area of higher solute concentration. In contrast, diffusion refers to the general process of particles moving from a ...
Biodiversity is the variety of all living things on Earth, and how they fit together. It means having as wide a range of different species in an ecosystem as it can support, bringing oxygen,...
- Osmosis Definition
- Solvents and Solutes
- Types of Solutions
- How Osmosis Affects Cells
- Examples of Osmosis
- Related Biology Terms
- Test Your Knowledge of Osmosis
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 ...
Oct 24, 2024 · What is the definition of biodiversity? Biodiversity, also called biological diversity, is the variety of life found in a place on Earth or, often, the total variety of life on Earth. A common measure of this variety, called species richness, is the count of species in an area.
buck, in zoology, the male of several animals, among them deer (except the sika and red deer, males of which are called stags), antelopes, goats, hares, rabbits, and rats. It is often used, especially in England, to indicate the male fallow deer.
