The first is the hypertonic solution. The hypertonic solution has a higher solute concentration than the other solution types. When an animal cell is placed in a hypertonic solution, it loses water and shrinks.
This is called a flaccid cell. The second type of solution is called a hypotonic solution. This solution is one which has a low solute concentration when compared to the other solutions. When an animal cell is placed in this kind of solution, the cell absorbs all the water and becomes bloated.
The final solution type is the isotonic solution type. This solution has no difference in solute concentration across the semi permeable membrane, therefore has no net movement of water across the membrane.
My Cart. This tutorial provides elaborate details on each of these mechanisms. Find out how. Animals adapt to their environment in aspects of anatomy, physiology, and behavior. This tutorial will help you understand how animals adapt to their habitat. For instance, how animals thrive in aquatic habitat and are able to overcome osmosis. It also sheds light on the reasons animals adapt It only takes one biological cell to create an organism.
A single cell is able to keep itself functional through its 'miniature machines' known as organelles. Read this tutorial to become familiar with the different cell structures and their functions The human respiratory system is an efficient system of inspiring and expiring respiratory gases. This tutorial provides details of the different parts and functions of the respiratory system Generation of resting membrane potential.
Cell Biology. Skip to content Main Navigation Search. Dictionary Articles Tutorials Biology Forum. Definition of concentration gradient. Table of Contents.
In biology, a concentration gradient results from the unequal distribution of particles e. The particles may move along or against their concentration gradient.
The downhill movement of particles is called a passive transport e. Conversely, the uphill movement is referred to as active transport. Plant Water Regulation Plants need to regulate water in order to stay upright and structurally stable. Water in Plants The movement of molecules specifically, water and solutes is vital to the understanding of plant processes.
How does diffusion differ from endocytosis and exocytosis? How does diffusion affect homeostasis? How are diffusion and osmosis different? How is diffusion involved in osmosis? How is facilitated diffusion different from active transport? What are common mistakes students make with facilitated diffusion? That's not what's going on.
They're just all randomly bouncing around and when you're in the starting position, when you're exactly like this, there's no probability because of a yellow particle moving from left to right, because there aren't any yellow particles here. While there's a probability that some of these particles, in a certain amount of time, some of these yellow particles could move from right to left. And so they'll keep doing that until you get to a stable configuration where now you have an equal probability of things moving from left to right, and right to left.
And that's going to be true for each of these particles. So the real takeaway, you'll hear in a biology or a chemistry class, of things moving down their concentration gradient, and you might say, and their unique concentration gradient. As you see, the yellow particles' concentration gradient goes in the other direction as the purple particles, but there's no magic to this.
You just have to imagine a bunch of things just bouncing around in a bunch of different directions, and then what would just naturally happen? You would naturally have a higher probability of moving from high concentration to low concentration, than from low concentration to high concentration.
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