which of the following best explains diffusion?

If you say something, I ll ask someone at what age erectile dysfunction starts to clean it up. They have the same charge, so it probably won't have something to do with that and Sodium is smaller than Potassium, so it seems like it should be easier!? B. Which of the following best explains the economic advantage of the type of farm-produced goods shown in the images? ADP is released as a by-product. Which of the following best explains the Green Revolution's highly variable level of success in increasing agricultu. Once again, as the concentration of this gas increases within the cell, it diffuses outwards towards capillaries where the force of flowing blood removes the excess gas from the tissue region. Great question since proteins are very large and complex they almost always have regions with different characteristics including patches that have negative or positive charges. What is the basic difference between simple diffusion and facilitated diffusion across a cell membrane? Cells placed in a hypotonic solution will take in water across their membranes until both the external solution and the cytosol are isotonic. A. Have you ever colored a picture with marker and noticed that two touching colors begin to bleed together? a.QH=500kW,QC=100kWb.QH=500kW,Wcycle=250kW,QC=200kWc.Wcycle=350kW,QC=150kWd.QH=500kW,QC=200kW\begin{array}{l}{\text { a. } Plantation farming is considered to be an intensive farming practice because it requires large inputs of labor and capital to produce the crop. What assists the movement of substances by facilitated diffusion? He should be given a hypotonic drip to draw fluid out of his cells. These channels are . Question 56. She consumed a large amount of water in a short time (Don't try thiswater intoxication is often fatal.). If a person goes to the hospital for surgery and requires IV (intravenous) fluids, which of the following should you expect? In this experiment, the food coloring that gets added is the same temperature in each of the hot and cold water tests. The English language became a widely spoken language in North America in the twentieth century. Which of the following is least likely to increase the rate of diffusion? Therefore, muscle cells have numerous: Which statement regarding the smooth endoplasmic reticulum (SER) is false? Which of the following solutions contains the most solute? Determine the type of membrane transport used to transport these sodium ions. This can occur with all sorts of matter, but is most commonly observed in liquids and gases. & y_2^{\prime}=12 y_1 \\ The hypertonic solution is one one side of the membrane and the hypotonic solution on the other. Epinephrine is taken into the cell by endocytosis; glycogen is converted to glucose in the endocytotic vesicle. Feedlots can minimize costs associated with livestock production because feedlots do not use as much space as cattle ranching. In less developed countries, pesticides are typically applied by hand, whereas pesticides are typically applied by tractors or aircraft in more developed countries. Passive transport is a way that small molecules or ions move across the cell membrane without input of energy by the cell. Red blood cells behave the same way (see figure below). 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. 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 significance of similarities between the farming practices for apple orchards and grape vineyards? Some transport processes use transport proteins in the plasma membrane, but do not require ATP. Diagram of a sodium-glucose cotransporter, which uses the energy stored in a sodium ion gradient to transport glucose "uphill" against its gradient. What happens when body cells are placed in a hypertonic solution? The material that diffuses could be a solid, liquid or gas. The cytoplasm does not include the nucleus. All the ways scientists do investigations. In secondary active transport, the movement of the sodium ions down their gradient is coupled to the uphill transport of other substances by a shared carrier protein (a. Even in large industrial reactions, when two liquids are mixed together, diffusion brings the reactants together and allows the reaction to proceed smoothly. The use of improved plant hybrids and agricultural chemicals. This results in swelling of the cell and potential hemolysis (bursting) of the cell. This process requires some form of chemical energy. Why does the diffusion of the solute down its concentration gradient release energy? 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? Which of the following is the best situation for maintaining homeostasis? One of the most important pumps in animal cells is the, Not only does the sodium-potassium pump maintain correct concentrations of Na. 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. 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. D. Golgi apparatus. B. In most biological systems, diffusion occurs across a semi-permeable membrane made of a lipid bilayer. Water molecules will move from the side of higher water concentration to the side of lower concentration until both solutions are isotonic. Sucrose cannot pass through a red blood cell's plasma membrane, but water and urea can. A number of colonies were established and settled by people from Great Britain. Cytosol is composed of water and other molecules, including enzymes, which are proteins that speed up the cell's chemical reactions. Which one of the following processes can explain this? Facilitated diffusion is necessary for the movement of large or polar molecules across the hydrophobic lipid bilayer. solute: a substance dissolved in another to form a solution. Conversely, in active transport, the solute moves against the concentration gradient, from regions of lower to higher concentration. Which of the following best explains how a wheat farmer in the Northern Plains region of the United States is able to maximize profits? Which of the following best explains diffusion? Each cell has a long tail that moves in a whip-like manner. 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. Be sure to clean up when you are done. In facilitated diffusion, molecules only move with the aid of a protein in the membrane. How, exactly, does the sodium-potassium pump establish a voltage across the membrane? Make sure to remember your password. Examples of molecules that can easily diffuse across the plasma membrane include carbon dioxide and oxygen gas. Dairy cows must be kept close to farmhouses, as they require daily milking, and milk must be produced close to consumers, as it is highly perishable. This statement describes _____. yes, dimensions also play a role in the case of transport. Can you predict, based on the first way of doing the experiment, what might change, if anything? The sodium-potassium pump uses ATP to move sodium and potassium ions across the plasma membrane. What process does water use to move across the plasma membrane? John David Jackson, Patricia Meglich, Robert Mathis, Sean Valentine, Charles Welsh, Cynthia Prentice-Craver, David Shier, Jackie Butler, Ricki Lewis, Child Psychopathology - Ch 1 Review questions. Passive processes that move substances across membranes ________. Because of the difference in sodium concentration (between the inside and outside of the cell) and due to the electrical potential difference (between the inside and outside of the cell), the SGLT is able to perform its function. Learn more about how this experiment is based in NGSS Disciplinary Core Ideas. B. digest and recycle damaged organelles (Show the details. Diffusion is the mixing of substances due to the movement of their particles. molecules move through transport proteins that have been activated by ATP. Solution A contains 1% glucose, solution B contains 5% glucose. The IV fluid should be isotonic to the patient's blood. Direct link to zykeriaprice2's post what is the main differen, Posted 7 years ago. Image depicting the charge and ion distribution across the membrane of a typical cell. Predict behavior of blood cells in different solution types. 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. The images show devices developed during the Second Agricultural Revolution. ; Diffusion occurs in liquids and gases when their particles collide randomly and . Diffusion is the mixing of substances due to the movement of their particles. Diffusion happens slowly and only across the small surface of interaction between the two fluids. Which of the following best explains diffusion? The phospholipid tails are ________, which make the plasma membrane impermeable to water. In general, to maintain homeostasis the relationship between our intracellular and extracellular fluids should be which of the following? 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. Facilitated diffusion requires the assistance of proteins. Privacy Policy and The two images show different agricultural methods. Sheep production is an example of extensive agriculture requiring large pastures, whereas poultry production is an example of intensive agriculture often practiced indoors. Describe flow of solvent molecules across a membrane. You can also use your keyboard to move the cards as follows: If you are logged in to your account, this website will remember which cards you know and don't know so that they Facilitated diffusion is powered entirely by GTP hydrolysis B. _{15}^{\mathrm{a}} \mathrm{X} & \rightarrow \beta+^{32} \mathrm{b} \end{aligned} The same gas would diffuse slightly more slowly in a liquid such as water and slowest in a solid. Large polar molecules cannot diffuse across a biological membrane B. In each cycle, three sodium ions exit the cell, while two potassium ions enter. By the time blood flows into capillaries in the muscle or liver, for instance, there is only a single layer of cells separating this oxygen from hepatocytes or skeletal muscle fibers. One phosphate group from ATP is attached to the pump, which is then said to be phosphorylated. D. Secondary active transport involves the movement of a substance into a cell with its concentration gradient. The images shown illustrate the differences in scale of production for two methods of producing thread. If you're seeing this message, it means we're having trouble loading external resources on our website. C. rough endoplasmic reticulum Direct link to Zaeen Iqbal's post i dont quite understand t, Posted 7 years ago. SDS, RDS, More Regulatory & Compliance Information, Lithium Battery UN 38.3 Test Summary Search, Transparency in Supply Chains and Modern Slavery Disclosures, Fill one glass half full of the coldest water you can get from the tap, Fill the other glass the same amount with the hottest water you can get from the tap. this is in relation to the electrochemical gradient section. Philibert, J. Direct link to Stocke's post Why does the diffusion of, Posted 7 years ago. For example, how might this play into why coffee and tea always start with hot water? How To Use Patchouli Oil For Erectile Dysfunction? Heroes and Highlights in the History of Diffusion. Would remain unchanged B. What do you predict will happen to the person's cells? serve as the site for metabolic reactions such as protein synthesis. What will happen to a freshwater fish in the ocean? For example, while oxygen gas will diffuse slightly more quickly than carbon dioxide, both of them will move more quickly than iodine gas. If a route such as a channel or carrier protein is open, sodium ions will move down their concentration gradient and return to the interior of the cell. 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? Osmosis is the diffusion of water molecules across a semipermeable membrane from an area of lower concentration solution (i.e., higher concentration of water) to an area of higher concentration solution (i.e., lower concentration of water). shouldn't it be positively charged? An example of this is the way the noxious smell of ammonia gas spreads in air. Which of the following best describes the differences in the agricultural practices and land use for these products? Solution A contains 1% glucose, solution B contains 5% glucose. Anatomy and Physiology Chapter 14 & 15 Hw/Qui, Subject pronouns and at verb's conjugation ch, Mastering A&P Chapter 3 - Cells: The Living U, David N. Shier, Jackie L. Butler, Ricki Lewis, Organizational Behavior: Managing People and Organizations, Jean Phillips, Ricky W. Griffin, Stanley Gully. We are not permitting internet traffic to Byjus website from countries within European Union at this time. A. We also acknowledge previous National Science Foundation support under grant numbers 1246120, 1525057, and 1413739. So something must protect the cell and allow it to survive in its water-based environment. It is simply the statistical outcome of random motion. This is usually not directed in any particular manner, and can appear random. The term cytoplasm refers to the cytosol and all of the organelles, the specialized compartments of the cell. For instance, a gas diffuses very quickly in another gas. A solution that contains fewer solutes than the cell is ________ to the cell. The second sugar solution is hypertonic to the first. C. detoxify certain chemicals D. through oxidation reactions At equilibrium, movement of molecules does not stop. Direct link to Yuya Fujikawa's post Hi, I'm just a little cur, Posted 5 years ago. 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. osmosis, simple diffusion, facilitated diffusion are all what type of process? To unpackage and unwind DNA so that enzymes can access the individual genes. If a cell is in a hypertonic solution, the solution has a lower water concentration than the cell cytosol, and water moves out of the cell until both solutions are isotonic. The number of molecules that only collide with other carbon dioxide particles within dry ice decreases. C. movement of molecules from an area of high concentration to an area of low concentration. What is transported across a membrane during osmosis? Which of the following best compares a technological consequence of the Green Revolution in more developed and less developed countries? Since diffusion moves materials from an area of higher concentration to the lower, it is described as moving solutes "down the concentration gradient". Which of the following statements most accurately compares these two agricultural practices? What is required for its transport? Adult should review each experiment and determine what the appropriate age is for the students participation in each activity before conducting any experiment. The sodium-potassium pump transports sodium out of and potassium into the cell in a repeating cycle of conformational (shape) changes. As a result of the EUs General Data Protection Regulation (GDPR). Domestication of plants and animals evolved in each hearth independently of one another as societies in each area learned and applied the process to local plants and animals. The latter may be 0.5 um while the former may be 100 um (which is more than 10X in comparative size). Mr. Weddington was admitted to the hospital with chronic heart failure. This makes it easier for the dye to get mixed throughout the hot water. The hypertonic solution has a lower water concentration than the hypotonic solution, so a concentration gradient of water now exists across the membrane. Fish cells, like all cells, have semipermeable membranes. Concentric rings of different agricultural activities surrounding a city in the midwestern United States. Wipe up any spills that may have happened. synthesize ATP, Which of the following organelles synthesizes proteins? As an example, while gases and small molecules like methane or water can diffuse freely across a plasma membrane, larger charged molecules like carbohydrates or nucleic acids need the help of transmembrane proteins forming pores or channels. This apparent slowing down is due to the fact that, over time, the larger container begins to have enough iodine gas that some of it will be moving backwards towards the crucible. Some transport processes use transport proteins in the plasma membrane, but do not require ATP. The mixture of a solute in a solvent is called a solution. This electricity can do work. At 3M, we discover and innovate in nearly every industry to help solve problems around the world. It is an important process occurring in all living beings. Banana plants were brought to Central America from Southeast Asia to be grown closer to markets in the United States and Canada. "Diffusion." Mehrer, H. and Stolwijk, N. A. Which of the following best describes advances in the production of textiles during the Second Agricultural Revolution and the Industrial Revolution? The site owner may have set restrictions that prevent you from accessing the site. The SER detoxifies drugs and harmful substances ingested by and produced in the body. http://physrev.physiology.org/content/91/2/733, https://phys.org/news/2013-10-mechanism-sodium-potassium-revealed.html. The township-and-range survey system was based on a geometric grid pattern, while the long-lot system was a rectilinear pattern based upon waterways or roads. Why Do Giant Pandas Have Low Libido? Your email address is only used to allow you to reset your password. molecules move through transport proteins that have been activated by ATP. Imagine this just like a hydroelectric power station uses the energy of water flowing down the waterfall to create electricity. At this balance point, the inside of the membrane is negative relative to the outside. The SER synthesizes the majority of the lipid components of the plasma membrane. Nuclear pores connect the cytoplasm with the nucleoplasm and allow substances to move between the two areas. In fact, cells spend much of the energy they harvest in metabolism to keep their active transport processes running. This property can be observed even better if the gas has an odor or color. Look at the large card and try to recall what is on the other side. This type of transport is known as _____. This allows red blood cells to carry oxygen all over your body. These farmers and traders exchanged the domesticated plants between themselves. What is the basic difference between simple diffusion and facilitated diffusion across a cell membrane? 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 In secondary active transport, the two molecules being transported may move either in the same direction (i.e., both into the cell), or in opposite directions (i.e., one into and one out of the cell). C. The IV fluid should be hypertonic to the patient's blood. Never needs the presence of any other molecule C. Diffusion of every molecule is dependent on its concentration gradient and independent of the concentration of other molecular species in the medium D. All of the above, 2. Which of the following best describes the survey methods used to delineate agricultural land and the associated settlement patterns shown in the tw. The sugar dissolves and the mixture that is now in the cup is made up of a solute (the sugar) that is dissolved in the solvent (the water). Which of the following spatial patterns is best explained by bid-rent theory? Wheat was first domesticated in Mesopotamia because of a favorable climate and a great diversity of wild grains that led to crossbreeding of seeds. Which of the following is not a passive process? start superscript, 2, comma, 3, end superscript, start superscript, 4, comma, 5, end superscript. The higher the temperature, the more kinetic energy the particles will have, so they will move and mix more quickly. C. Diffusion provides ciphertext heterogeneity, while confusion provides algorithm This problem has been solved! Which of the following processes require the use of protein carrier molecules? While this charge ratio does make the cells interior slightly more negative, it actually accounts for only a, Instead, the sodium-potassium pump acts primarily by building up a high concentration of potassium ions inside the cell, which makes potassiums concentration gradient very steep. All cells have a barrier around them that separates them from the environment and from other cells. Incorrect options: Option A is incorrect because space-time compression is the shortened time or communication between two places. Drought and depletion of groundwater sources in developing countries cause a rise in global grain prices and associated higher costs for food. Molecules that cannot easily pass through the bilayer include ions and small hydrophilic molecules, such as glucose, and macromolecules, including proteins and RNA. 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. Several large cities on the East Coast provide a growing market and shorter distances for transporting market gardening products. A vesicle fuses with the plasma membrane and releases its contents to the extracellular fluid. Comparing the two images, which survey system was more efficient in terms of trade? However, the township-and-range system uses simplified calculation to create a more ordered landscape. The function of the plasma membrane is to control what goes in and out of the cell. \dot{Q}_{\mathrm{H}}=500 \mathrm{kW}, \dot{Q}_{\mathrm{C}}=100 \mathrm{kW}} \\ {\text { b. } Which of the following best explains diffusion? Agricultural technology has increased the economy of scale and the carrying capacity of feedlots, increasing profits for the farmer. A Diffusion provides encryption strength, while confusion provides data integrity B. Diffusion provides function integrity, while confusion provides encryption confidentiality. The greater the surface area, the faster the rate of diffusion. Allison Soult, Ph.D. (Department of Chemistry, University of Kentucky). Direct link to City Face's post Because a solute moving d, Posted 7 years ago. The kinetic energy of the molecules results in random motion, causing diffusion. The plants and animals diffused to a region with climate and geography similar to that of their point of domestication. A heavier molecule with a larger surface area will diffuse slowly, while smaller, lighter particles will diffuse more quickly. tonicity: the amount of solute in a solution. If the cell is moved to a 6% dextrose solution, then predict what will happen to the cell. Spaeth, E. E., and Friedlander, S.K. 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 Which of the following statements is best supported by the images? The membrane connections that prevent the leaking of fluid between cells are called ________. selectively permeable: the characteristic of a membrane that allows some substances through but not others. 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} \\ If a person is severely dehydrated, their extracellular fluids will become hypertonic to the intracellular fluid. 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. This process continues until the voltage across the membrane is large enough to counterbalance potassiums concentration gradient. Direct link to William H's post If for example there are , Posted 5 years ago. These molecules diffuse freely in and out of the cell, along their concentration gradient. to send you a reset link. See our Direct link to Ivana - Science trainee's post yes, dimensions also play. How To Prolong Ejaculation During Intercourse? The difference in the concentrations of the molecules in the two areas is called the concentration gradient. The reaction proceeds as the two reactants diffuse towards each other and undergo a chemical reaction to form esters. The brands listed above are trademarks of 3M. The passive process that involves the movement of water through aquaporins is ________. Limited farmland encourages intensive farming with intercropping to produce high yields. Some molecules can go through the cell membrane to enter and leave the cell, but some cannot. Which of the following best explains diffusion? PS1.A: Structure and Properties of Matter, PS3.C: Relationship Between Energy and Forces. Labor-intensive farming of vegetables is done in small-scale plots in market gardens, while extensive grain crops are grown in large-scale fields far from the market town. The inside of all cells also contain a jelly-like substance called cytosol. Pour all of the water down the sink, and wash out the glasses. To move substances against a concentration or electrochemical gradient, a cell must use energy. Put it in freshwater, and the freshwater will, through osmosis, enter the fish, causing its cells to swell, and the fish will die. Think of how delicious smells from your kitchen take longer to get into your bedroom than to your living room which is located right beside the kitchen. The images shown illustrate a change that took place as the Second Agricultural Revolution coincided with the Industrial Revolution. 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). The pump is now back to where it was in step 1, and the cycle can begin again. are in the same box the next time you log in. Which of the following is least likely to increase the rate of diffusion? This voltage will be maintained as long as K, For more explanation of how the voltage across the membrane is established, take a look at the. Spontaneous activity releases energy, non-spontaneous activity (like moving something against its concentration gradient) requires energy. You would need to create a new account. Each of these factors, independently and collectively can alter the rate and extent of diffusion. 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. The electrochemical gradients set up by primary active transport store energy, which can be released as the ions move back down their gradients. If a cell is in a hypertonic solution, the solution has a . Na+. Answer: Random movement of molecules is not fast enough to disperse through the larger eukaryotic cell volume, Explanation: Eukaryotic clels are much bigger than prokaryotic cells. Through the process of uniculturalism, multiple types of foods are blended together into one cuisine. For instance, when water is mixed with glycerol, over time the two liquids diffuse radially into each other. Active transport mechanisms can be divided into two categories.

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