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How is active transport similar to facilitated diffusion in terms of their mechanisms of moving substances across the cell membrane?
Active transport and facilitated diffusion are both mechanisms used by cells to move substances across the cell membrane. Both processes require the use of specific proteins embedded in the cell membrane to facilitate the movement of substances. However, the key difference between the two is that active transport requires energy input from the cell to move substances against their concentration gradient, while facilitated diffusion does not require energy and moves substances down their concentration gradient.
What occurs when substances scatter themselves evenly throughout an available space?
The process is called as diffusion, probably. The molecules have kinetic energy. that makes them to diffuse probably. Why the molecules do not come closer to each other, due to gravity is a question mark. Probably the kinetic energy is more powerful than the gravitational force. If you mix two gases, they will diffuse evenly in the space. How and why this happens is the question mark, again.
Name 2 types of passive transport?
Diffusion-the random movement of molecules from an area of higher concentration to an area of lower concentration.Osmosis-the diffusion of water across a semipermeable membrane.
What does concentration gradient have to do with diffusion of substances across the cell membrane?
The concentration gradient refers to the difference in concentration of a substance between two regions. In the context of cell membranes, substances tend to move from areas of higher concentration to areas of lower concentration to reach equilibrium. This movement is known as diffusion and it is driven by the concentration gradient.
What result would you expect if these two models were compared in a diffusion test?
If the two models were compared in a diffusion test, you would expect to see differences in how well they diffuse a substance. The model with higher diffusion capabilities would show a faster and wider spread of the substance compared to the model with lower diffusion capabilities.
When two substances mix without being shaken or stirred?
When two substances mix without being shaken or stirred, it is likely due to the process of diffusion. Diffusion is the movement of molecules from an area of high concentration to an area of low concentration, leading to the even distribution of the substances.
The motion of two substances by the random motion of molecules is called?
Brownian motion
What is the definition of a stimulus diffusion?
The spontaneous intermingling of the particles of two or more substances as a result of random thermal action
Which two types of substances can move by diffusion?
Two types of substances that can move by diffusion are gases and small nonpolar molecules, such as oxygen and carbon dioxide. These substances can easily pass through cell membranes due to their ability to move from areas of higher concentration to areas of lower concentration. Additionally, small polar molecules, like water, can also diffuse across membranes, though often through specialized channels. Overall, diffusion is a crucial process for the movement of various substances in biological systems.
How does Counter current exchange affect diffusion?
Counter current exchange allows for a more efficient exchange of substances between two fluids by maintaining a concentration gradient along the exchange surface. This results in a greater rate of diffusion compared to simple diffusion. It also helps to conserve energy by minimizing the loss of substances from the gradient.
What is made of two or more substances that are together in the same place but are not chemically combined what is made of two or more substances that are together in the same place but are not chemic?
This is a mixture.
What process accounts for the change shown in lab setup a?
The change shown in lab setup a is likely due to a chemical reaction taking place between the reactants in the setup. The mixing of two or more substances can lead to the formation of new products with different properties than the original substances.
The change that takes place when two or more substances to form new substances is called a chemical reaction.?
two
Describe concentration prior to and at this point?
Diffusion flows from a more concentrated to less concentrated substance. The process ends at a point of equilibrium between the two substances. In a word, prior to diffusion concentration is higher on one side and at diffusion both sides are equal.
How is active transport similar to facilitated diffusion in terms of their mechanisms of moving substances across the cell membrane?
Active transport and facilitated diffusion are both mechanisms used by cells to move substances across the cell membrane. Both processes require the use of specific proteins embedded in the cell membrane to facilitate the movement of substances. However, the key difference between the two is that active transport requires energy input from the cell to move substances against their concentration gradient, while facilitated diffusion does not require energy and moves substances down their concentration gradient.
The change that takes place when two or more substances interact to form new substances is called a reaction.?
two
What consists of two or more substances that are in the same place but not chemically combined.?
A mixture
