which of the following best explains diffusion?

which of the following best explains diffusion?

A number of colonies were established and settled by people from Great Britain. Direct link to City Face's post Because a solute moving d, Posted 7 years ago. sideropenia _____________________________________________________. Option C is the correct answer because Cultural divergence (CD) happens when two cultures separate, therefore CD explains the best concept of driving forces of contemporary cultural diffusion. Some transport processes use transport proteins in the plasma membrane, but do not require ATP. The pump is now back to where it was in step 1, and the cycle can begin again. It is simply the statistical outcome of random motion. If the cell is moved to a 6% dextrose solution, then predict what will happen to the cell. Overall, there are more positive charges on the outside of the membrane than on the inside. Diffusion will continue until the concentration gradient has been eliminated. Diffusion is a physical process that refers to the net movement of molecules from a region of high concentration to one of lower concentration. Facilitated diffusion is diffusion that is helped along (facilitated by) a membrane transport channel. In this conformation, the pump no longer likes to bind to sodium ions (has a low affinity for them), so the three sodium ions are released outside the cell. C. rough endoplasmic reticulum Diffusion occurs when the spontaneous net movement of particles or molecules spreads them from an area of high concentration to an area of low concentration through a semipermeable membrane. Which of the following best describes the survey methods used to delineate agricultural land and the associated settlement patterns shown in the tw. yes, dimensions also play a role in the case of transport. A. Golgi apparatus B. How To Use Patchouli Oil For Erectile Dysfunction? movement of molecules from an area of high concentration to an area of low concentration Which of the following is most likely to move through the cell membrane by facilitated diffusion? If a person goes to the hospital for surgery and requires IV (intravenous) fluids, which of the following should you expect? Which of the following substances must travel across a membrane via facilitated diffusion? With the phosphate group gone, the pump will change back to its original form, opening towards the interior of the cell. Glucose is the most commonly used energy source by human cells because (Points: 1) this is the most abundant macromolecule available for cellular respiration. What is the basic difference between simple diffusion and facilitated diffusion across a cell membrane? Do you think the temperature of the food coloring might have an effect on how it diffuses? Direct link to Dovid Shaw's post how does the antiporter p, Posted 7 years ago. What would happen if a cell dissolved in water, like sugar does? Which of the following best explains the Green Revolution's highly variable level of success in increasing agricultu. concentrated salt solution. Which one of the following processe | Filo Question 56. If a cell is in a hypertonic solution, the solution has a . Be sure to clean up when you are done. What do you predict will happen to the person's cells? This barrier is called the plasma membrane, or cell membrane. Which of the following best explains diffusion?Which of the following 1. The image is a simple representation of the diffusion of one particle in another medium. Which of the following best explains the significance of a similarity among locations where olives, figs, grapes and lemons are grown? Why can't the Sodium move down it's concentration gradient by using the same channel the Potassium uses? C. Diffusion provides ciphertext heterogeneity, while confusion provides algorithm This problem has been solved! Solution A and solution B are separated by a semipermeable membrane. A cell is isotonic to the surrounding 4% dextrose solution. His feet and legs were swollen with fluid. For instance, one of the ways in which polyester is synthesized is by mixing the appropriate organic acid and alcohol in their liquid form. This is usually not directed in any particular manner, and can appear random. For example, how might this play into why coffee and tea always start with hot water? Also, think about where you see this happen in other places. The material that diffuses could be a solid, liquid or gas. D. mitochondria, Which of the following is a function of lysosomes? Main difference: In facilitated diffusion, the solute moves down the concentration gradient, from regions of higher to lower concentration, relying on the specificity of the protein carrier to pass through the membrane. Solved QUESTION 28 Which of the following best explains the - Chegg After addition of 1.00mL1.00 \mathrm{~mL}1.00mL of 2.00102M2.00 \times 10^{-2} \mathrm{M}2.00102M NaCl\mathrm{NaCl}NaCl, the potential changed to 0.1846V-0.1846 \mathrm{~V}0.1846V. Calculate the Na+\mathrm{Na}^{+}Na+concentration of the original solution. Which of the following best describes the impacts of the Second Agricultural Revolution? 0 To produce a mRNA molecule to deliver the genetic instructions outside the nucleus. when it releases the ions the pump no longer has a affinity for the molecules, is this because the energy used to change the conformation of the pump knocks off electrons or does the phosphates make the pump more negative due to the negative charges on the phosphates itself? Direct link to Srichchha Pradhan's post There are certainly more , Posted 6 years ago. Which of the following spatial patterns is best explained by bid-rent theory? Passive processes that move substances across membranes ________. In the context of the Second Agricultural Revolution, which of the following trends is represented in these images? Your email address is only used to allow you to reset your password. The plants and animals diffused to a region with climate and geography similar to that of their point of domestication. The second sugar solution is hypertonic to the first. Which of the following best explains the differences between the patterns of land use in the township-and-range system and the long-lot system, as shown in the images? In general, the inside of a cell has a higher concentration of potassium (K, If sodium ions are outside of a cell, they will tend to move into the cell based on both their concentration gradient (the lower concentration of Na, The combination of concentration gradient and voltage that affects an ions movement is called the. Diffusion in the human body is necessary for the absorption of digested nutrients, gas exchange, the propagation of nerve impulses, the movement of hormones and other metabolites towards their target organ and for nearly every event in embryonic development. What separates the intracellular fluid from the extracellular fluid? A Diffusion provides encryption strength, while confusion provides data integrity B. Diffusion provides function integrity, while confusion provides encryption confidentiality. What conditions affect the diffusion of a substance in water? In an antiporter it uses the energy of the ions flowing down their concentration gradient. In simple diffusion, this process proceeds without the aid of a transport protein. The end result is an equal concentration, or equilibrium, of molecules on both sides of the membrane. Which of the following scenarios best explains the Columbian Exchange? This can occur with all sorts of matter, but is most commonly observed in liquids and gases. Conversely, in active transport, the solute moves against the concentration gradient, from regions of lower to higher concentration. Therefore, they are NOT able to __________. Requested URL: byjus.com/biology/diffusion/, User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/103.0.5060.114 Safari/537.36 Edg/103.0.1264.62. Small-scale farmers in Asia often lacked the resources necessary to acquire the hybrid seeds and the chemical inputs to grow them, leaving large gaps in the success of the Green Revolution outside of urban cores. Animal cells tend to do best in an isotonic environment, where the flow of water in and out of the cell is occurring at equal rates. http://physrev.physiology.org/content/91/2/733, https://phys.org/news/2013-10-mechanism-sodium-potassium-revealed.html. passive transport: a method of transporting material that does not require energy. The sodium-potassium pump uses ATP to move sodium and potassium ions across the plasma membrane. If the concentration of dextrose in the solution is increased to 5%, the cell is now in a(n): The total solute concentration of a red blood cell is about 2%. The brands listed above are trademarks of 3M. The three main kinds of passive transport are diffusion (or simple diffusion), osmosis, and facilitated diffusion. Why Do Giant Pandas Have Low Libido? No, because the potassium is highly concentrated in the cell, and so that's where the molecules must go(based on active transport going low concentration to high concentration). And sodium is highly concentrated outside of the cell, so that's where it goes during active transport considering it is low to high concentration. C. Secondary active transport occurs when the movement of one substance is coupled with the passive transport of a second substance. He should be given a hypotonic drip to draw fluid out of his cells. A) greater collision frequency and more effective collisions B) increasing the number of particles in a given volume increases collision frequency C) weakens the bonds in the reactants so that they are easier to break D) better orientation of the reactant Na+ Ions move easily through water, which is polar, but cannot pass directly through the lipid (nonpolar) part of the cell membrane. Therefore, the rate of diffusion of the gas into air also increases. A. Put the food coloring back where you found it. If you knew the answer, tap the green Know box. Phosphorylation makes the pump change shape, re-orienting itself so it opens towards the extracellular space. When oxygen is moving towards tissues from capillaries, carbon dioxide is entering the bloodstream. In less developed countries, pesticides are typically applied by hand, whereas pesticides are typically applied by tractors or aircraft in more developed countries. The images shown illustrate a change that took place as the Second Agricultural Revolution coincided with the Industrial Revolution. The same gas would diffuse slightly more slowly in a liquid such as water and slowest in a solid. AP Bio Final 2019 | Biology Quiz - Quizizz Which of the following is a characteristic of the cell membrane? This means that the dry ice (or even regular ice) will evaporate faster on a warmer day, simply because each molecule is moving with greater energy and is more likely to quickly escape the confines of a solid state. Active transport mechanisms can be divided into two categories. A. Carbon dioxide would diffuse faster than bromine gas C. Integral membrane proteins that facilitate diffusion are highly specific about their cargo D. All of the above, Biologydictionary.net Editors. Which of the following best explains this change? Which of the following best explains why in the model the amount of land used for dairying is much smaller than the pasture used for beef cattle? While science experiments at home are exciting ways to learn about science hands-on, please note that some may require participants to take extra safety precautions and/or make a mess. We also acknowledge previous National Science Foundation support under grant numbers 1246120, 1525057, and 1413739. The rate of diffusion of a gas across a surface is controlled by the following: k, the gas diffusion constant; A, the area for gas exchange; P2-P1, the difference in partial pressure of gas on either side of diffusion barrier; D, the distance across which the gas must diffuse (thickness of diffusion barrier) This experiment was selected for Science at Home because it teaches NGSS Disciplinary Core Ideas, which have broad importance within or across multiple science or engineering disciplines. Feedlots can minimize costs associated with livestock production because feedlots do not use as much space as cattle ranching. The majority of water molecules moving across plasma membranes by osmosis do so via a process that is most similar to ____. This electricity can do work. Direct link to long pham's post if there are more Potassi, Posted 6 years ago. The function of the plasma membrane is to control what goes in and out of the cell. serve as the site for metabolic reactions such as protein synthesis. Just like the first cup, the sugar is the solute, and the water is the solvent. To unpackage and unwind DNA so that enzymes can access the individual genes. Diffusion is the movement of molecules from an area of high concentration of the molecules to an area with a lower concentration. Sucrose cannot pass through a red blood cell's plasma membrane, but water and urea can. O To edit the mRNA strand and make it ready to leave the nucleus. Facilitated diffusion is powered entirely by GTP hydrolysis B. The first image shows a long-lot survey method with a linear settlement pattern, and the second image shows a metes-and- bounds survey method with a dispersed settlement pattern. answer choices The greater the difference in concentration, the quicker the rate of diffusion. Direct link to liweiong272's post Main difference: In facil, Posted 6 years ago. The images shown illustrate the differences in scale of production for two methods of producing thread. One of the most important pumps in animal cells is the, Not only does the sodium-potassium pump maintain correct concentrations of Na. At 3M, we discover and innovate in nearly every industry to help solve problems around the world. What Is Diffusion? - Definition, Types & Examples Of Diffusion - BYJUS \end{aligned} Figure showing the transport cycle of the sodium-potassium pump. It will bind two of them, and this triggers removal of the phosphate group attached to the pump in step 2. Which of these statements is NOT true? There are certainly more numbers of potassium ions in the cells, but remember that there are greater numbers of sodium ions outside the cell (since for every three sodium ions moved out of the cells, two potassium ions enter the cell), therefore, resulting in a net positive charge outside the cell and net negative charge inside the cell. In biological systems, diffusion occurs at every moment, across membranes in every cell as well as through the body. When red blood cells are in a hypertonic (higher concentration) solution, water flows out of the cell faster than it comes in. he Na+\mathrm{Na}^{+}Na+concentration of a solution was determined by measurement with a sodium ion-selective electrode. During the Green Revolution, agricultural practices from more developed countries diffused to less developed countries in Asia and Africa. This example also shows that the diffusion of any one material is independent of the diffusion of any other substances. Both systems require geometric calculations to survey property lines. Water leaves the cells and the cells shrink. Look at the large card and try to recall what is on the other side. Banana plants were brought to Central America from Southeast Asia to be grown closer to markets in the United States and Canada. What assists the movement of substances by facilitated diffusion? This way, the capillaries remain at a low carbon dioxide concentration, allowing the constant movement of the molecule away from cells. A power cycle operating at steady state receives energy by heat transfer at a rate QHatTH=1800K\dot{Q}_{\mathrm{H}} \text { at } T_{\mathrm{H}}=1800 \mathrm{K}QHatTH=1800K and rejects energy by heat transfer to a cold reservoir at a rate QC\dot{Q}_{\mathrm{C}}QC at TC=600K.T_{\mathrm{C}}=600 \mathrm{K}.TC=600K. (a) Osmosis UEE Main-2020 (Septeimbern) (c) Diffusion (b) Reverse osmosis (d) Dialysis 26. The gradient is steep enough that potassium ions will move out of the cell (via channels), despite a growing negative charge on the interior. For cell transport, diffusion is the movement of small molecules across the cell membrane. These molecules diffuse freely in and out of the cell, along their concentration gradient. On the other extreme, a red blood cell that is hypotonic (lower concentration outside the cell) will result in more water flowing into the cell than out. If you've accidentally put the card in the wrong box, just tap on the card to take it out of the box. Epinephrine diffuses through the plasma membrane; the hormone dimerizes in the cytosol. This process does not require energy.

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