which of the following best explains diffusion?

a.QH=500kW,QC=100kWb.QH=500kW,Wcycle=250kW,QC=200kWc.Wcycle=350kW,QC=150kWd.QH=500kW,QC=200kW, Find a real general solution of the following systems. In this experiment, you will experience how temperature affects the mixing of food coloring drops with water. The molecules move from a region of higher concentration to a region of lower concentration until the concentration becomes equal . synthesize ATP, Which of the following organelles synthesizes proteins? Similarly, the medium in which diffusion occurs could also be in one of the three physical states. Small-scale farmers in Asia often lacked the resources necessary to acquire the hybrid . Secondary active transport uses the energy stored in these gradients to move other substances against their own gradients. Red blood cells behave the same way (see figure below). What transport process can create a concentration gradient for sodium across the plasma membrane? Which of the following explains the diffusion and successful cultivation of many plants and animals in new regions of the world through the Columbian Exchange? Agricultural settlement patterns are partly determined by the survey system used to organize landownership. Here, the cell can't import glucose for free using diffusion, because the natural tendency of the glucose will be to diffuse out rather than flowing in.Instead, the cell must bring in more glucose molecules via active transport.In active transport, unlike passive transport, the cell expends energy (for example, in the form of ATP) to move a substance against its concentration gradient. Because diffusion happens from high concentration to low concentration, the more molecules are moving, the more opportunities they have to mix together. The kinetic energy of the molecules results in random motion, causing diffusion. What values of a and b would complete each of the following (X and Y are not meant to be any particular elements): 266X+baY15aX+32b\begin{aligned} 266 \mathrm{X} & \rightarrow \alpha+\mathrm{b}^{\mathrm{a}} \mathrm{Y} \\ A Diffusion provides encryption strength, while confusion provides data integrity B. Diffusion provides function integrity, while confusion provides encryption confidentiality. A. movement of molecules farther away from equilibrium B. exchange of nonpolar molecules for polar molecules C. movement of molecules from an area of high concentration to an area of low concentration D. movement of molecules from where there are fewer of them to where there are more Direct link to Yago's post Why can't the Sodium move, Posted 4 years ago. We also acknowledge previous National Science Foundation support under grant numbers 1246120, 1525057, and 1413739. Because of the increased capital investment required to produce new crop varieties using technology that was pioneered in more developed countries, there was an increase in wealth disparity in many farming communities in less developed countries. Diffusion is the mixing of substances due to the movement of their particles. 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 first sugar solution is hypotonic to the second solution. Diffusion is a physical process that refers to the net movement of molecules from a region of high concentration to one of lower concentration. Cells may lyse when placed into a hypertonic environment. Heroes and Highlights in the History of Diffusion. While this could be facilitated by other molecules, it does not directly involve high-energy molecules such as adenosine triphosphate (ATP) or guanosine triphosphate (GTP). Which of the following best explains why farmers would plant both strawberries and watermelons in the same field? Direct link to long pham's post if there are more Potassi, Posted 6 years ago. Most lettuce is produced, processed, and packaged for sale in supermarkets that are a significant distance from where the product was grown. If you knew the answer, tap the green Know box. 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. Direct link to liweiong272's post Main difference: In facil, Posted 6 years ago. Free Flashcards about AP human practice 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. This is also seen when two liquid reactants are mixed with one another. Which of the following best explains a negative economic consequence of the Green Revolution in less developed countries as compared to more developed countries? 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. Which of the following best explains the economic advantage of the type of farm-produced goods shown in the images? This statement describes _____. For example, while oxygen gas will diffuse slightly more quickly than carbon dioxide, both of them will move more quickly than iodine gas. What do you predict will happen to the person's cells? Epinephrine is taken into the cell by endocytosis; glycogen is converted to glucose in the endocytotic vesicle. He should be given a hypotonic drip to draw fluid out of his cells. Based on the different types of land use shown in the image, which of the following best explains why soil salinization is a concern in the arid landscape shown? The two images show different agricultural methods. Water leaves the cells and the cells shrink. Large polar molecules cannot diffuse across a biological membrane B. What process does water use to move across the plasma membrane? This example also shows that the diffusion of any one material is independent of the diffusion of any other substances. Which of the following is NOT one of the functions of the cytoskeleton? Conversely, in active transport, the solute moves against the concentration gradient, from regions of lower to higher concentration. Each cell has a long tail that moves in a whip-like manner. In facilitated diffusion, molecules only move with the aid of a protein in the membrane. In its inward-facing shape, the pump loses its interest in (has a low affinity for) potassium ions, so the two potassium ions will be released into the cytoplasm. Here, well look in more detail at gradients of molecules that exist across cell membranes, how they can help or hinder transport, and how active transport mechanisms allow molecules to move against their gradients. Compared to plain milk or fresh fruit, these value-added agricultural goods significantly increase the price of the farm products sold and increase earnings for farmers. A not very well-studied A&P student heard about a phenomenon called water intoxication and thought it sounded fun so she decided to try it. In facilitated diffusion, molecules only move with the aid of a protein in the membrane. This can even be observed visually by the addition of different colored dyes to each of the liquids. Passive processes that move substances across membranes ________. What happens when body cells are placed in a hypertonic solution? At 3M, we discover and innovate in nearly every industry to help solve problems around the world. What separates the intracellular fluid from the extracellular fluid? D. Golgi apparatus. Tea plantations were established in Sri Lanka by a former European colonial power. y1=3y2y2=12y1. This property can be observed even better if the gas has an odor or color. Since diffusion moves materials from an area of higher concentration to the lower, it is described as moving solutes "down the concentration gradient". Water moves into and out of cells by osmosis. Which of the following best explains the spatial patterns illustrated in von Thnens model? Which of the following is most likely to move through the cell membrane by facilitated diffusion? It will bind two of them, and this triggers removal of the phosphate group attached to the pump in step 2. answer choices The English language initially diffused to North America through the process of relocation diffusion. A heavier molecule with a larger surface area will diffuse slowly, while smaller, lighter particles will diffuse more quickly. Which of the following best describes the survey methods used to delineate agricultural land and the associated settlement patterns shown in the tw. Active transport works by using a phosphate group from ATP to change the shape of the protein and thus do work. You now add the two solutions to a beaker that has been divided by a semipermeable membrane, with pores that are too small for the sugar molecules to pass through, but are big enough for the water molecules to pass through. Imagine you have a cup that has \(100 \: \text{mL}\) water, and you add \(15 \: \text{g}\) of table sugar to the water. Solved QUESTION 28 Which of the following best explains the - Chegg Nerve cells do not have centrioles. answer choices Through the process of ethnocentrism, American culture has spread throughout the world. A. Invention of the plow eased the intensive use of labor, and the innovation of mechanized farm equipment led to improved food production. Accessibility StatementFor more information contact us atinfo@libretexts.orgor check out our status page at https://status.libretexts.org. C. detoxify certain chemicals D. through oxidation reactions In most biological systems, diffusion occurs across a semi-permeable membrane made of a lipid bilayer. Question 16 30 seconds Q. What will happen to a freshwater fish in the ocean? But now you have two mixtures of different solute concentrations. Which of the following best explains diffusion? This type of transport is known as _____. Why Do Giant Pandas Have Low Libido? 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Then tap the card to flip it. Posted 7 years ago. This is because in hot water, the water molecules have more energy and are moving faster than the molecules of cold water. Its tempting to simply make an argument based on stoichiometry: for every three ions of sodium that move out, only two ions of potassium move in, resulting in a more negative cell interior.