Since diffusion moves materials from an area of higher concentration to the lower, it is described as moving solutes "down the concentration gradient". Stirring increases the area of interaction between the two chemicals and allows these molecules to diffuse towards each other more quickly. This is also seen when two liquid reactants are mixed with one another. Can't that serve the same role? As a prokaryotic cell does not have a nucleus, the DNA is in the cytoplasm. 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. D. The SER stores calcium ions. For instance, the channel protein that transports potassium ions has a much higher affinity for that ion than a very similar sodium ion, with nearly the same size and charge. does the glucose molecule just randomly attach itself to the protein when it's about to transport a sodium ion to the other side? Invention of the plow eased the intensive use of labor, and the innovation of mechanized farm equipment led to improved food production. For instance, a gas diffuses very quickly in another gas. The phospholipid tails are ________, which make the plasma membrane impermeable to water. Comparing the two images, which survey system was more efficient in terms of trade? He should be given a hypotonic drip to draw fluid out of his cells. Solved 1. Which of the following best explains how water - Chegg A primary active transport process is one in which __________. 3.5 Passive Transport - Concepts of Biology - 1st Canadian Edition In an antiporter it uses the energy of the ions flowing down their concentration gradient. Which of the following best explains the process illustrated by the image? Passive transport is a way that small molecules or ions move across the cell membrane without input of energy by the cell. Have you ever colored a picture with marker and noticed that two touching colors begin to bleed together? What happens when body cells are placed in a hypertonic solution? What organelle degrades old, worn-out organelles and cell components? fats and proteins yield too much energy for the cells to process. When you've placed seven or more cards in the Don't know box, tap "retry" to try those cards again. Which of the following spatial patterns is best explained by bid-rent theory? Some molecules can go through the cell membrane to enter and leave the cell, but some cannot. During the Green Revolution, agricultural practices from more developed countries diffused to less developed countries in Asia and Africa. Typically, diffusion refers to the movement of molecules from high concentrations to lower concentrations. By diffusion: glucose will move from solution B to solution A. In fact, cells spend much of the energy they harvest in metabolism to keep their active transport processes running. Direct link to Zaeen Iqbal's post i dont quite understand t, Posted 7 years ago. Solutions of equal solute concentration are isotonic. Minerals For Erectile Dysfunction - Camping Estanyet Diffusion can either be simple diffusion and be facilitated by another molecule. In less developed countries, pesticides are typically applied by hand, whereas pesticides are typically applied by tractors or aircraft in more developed countries. A red blood cell will swell and undergo hemolysis (burst) when placed in a hypotonic solution. (2017, April 27). The sodium-potassium pump uses ATP to move sodium and potassium ions across the plasma membrane. These molecules diffuse freely in and out of the cell, along their concentration gradient. C. Diffusion provides ciphertext heterogeneity, while confusion provides algorithm This problem has been solved! \dot{Q}_{\mathrm{H}}=500 \mathrm{kW}, \dot{Q}_{\mathrm{C}}=100 \mathrm{kW}} \\ {\text { b. } 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%. Which of the following is not required for osmosis to occur? In class, do you typically sit evenly spaced or all scrunched together? Which of the following solutions contains the most solute? Question 12 30 seconds Q. Diffusion - Definition, Examples and Types | Biology Dictionary Allison Soult, Ph.D. (Department of Chemistry, University of Kentucky). Which of the following statements is best supported by the images? Which of the following best explains the Green Revolution's highly variable level of success in increasing agricultu. The same gas would diffuse slightly more slowly in a liquid such as water and slowest in a solid. This allows red blood cells to carry oxygen all over your body. Direct link to Eshita's post No, because the potassium, Posted 7 years ago. What transport process can create a concentration gradient for sodium across the plasma membrane? 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. At this point, equilibrium is reached. The first sugar solution is hypotonic to the second solution. a.QH=500kW,QC=100kWb.QH=500kW,Wcycle=250kW,QC=200kWc.Wcycle=350kW,QC=150kWd.QH=500kW,QC=200kW\begin{array}{l}{\text { a. } For cell transport, diffusion is the movement of small molecules across the cell membrane. The image is a simple representation of the diffusion of one particle in another medium. Mr. Weddington was admitted to the hospital with chronic heart failure. This increases the rate at which solute and solvent molecules move, and increases collisions. "Diffusion. Water molecules will move from the side of higher water concentration to the side of lower concentration until both solutions are isotonic. Both systems require geometric calculations to survey property lines. The LibreTexts libraries arePowered by NICE CXone Expertand are supported by the Department of Education Open Textbook Pilot Project, the UC Davis Office of the Provost, the UC Davis Library, the California State University Affordable Learning Solutions Program, and Merlot. Instead of feeling drunk, she felt nauseated, developed a severe headache, began to get confused, and then became unconscious. Because a solute moving down its concentration gradient is spontaneous. The images show examples of agricultural technology developed during different time periods. ADP is released as a by-product. A vesicle fuses with the plasma membrane and releases its contents to the extracellular fluid. Even in large industrial reactions, when two liquids are mixed together, diffusion brings the reactants together and allows the reaction to proceed smoothly. If there was a coolant near the mouth of a crucible heating iodine how would that affect its rate of diffusion? Cytosol is composed of water and other molecules, including enzymes, which are proteins that speed up the cell's chemical reactions. Which of the following explains the prevalence of banana plantations in Central America? Phosphorylation makes the pump change shape, re-orienting itself so it opens towards the extracellular space. B. digest and recycle damaged organelles Township and range: unit-block field patterns with dispersed farmsteads and occasional villages. This results in swelling of the cell and potential hemolysis (bursting) of the cell. The mixture of a solute in a solvent is called a solution. If you forget it there is no way for StudyStack y1=3y2y2=12y1. 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. If the alveoli in our lungs fill with fluid (pulmonary edema), the distance the gases must travel increases, and their transport decreases. For instance, when water is mixed with glycerol, over time the two liquids diffuse radially into each other. Diffusion is a physical process that refers to the net movement of molecules from a region of high concentration to one of lower concentration. Most lettuce is produced, processed, and packaged for sale in supermarkets that are a significant distance from where the product was grown. When red blood cells are in a hypertonic (higher concentration) solution, water flows out of the cell faster than it comes in. Mehrer, H. and Stolwijk, N. A. Unit 3 Culture Test | Geography Quiz - Quizizz The cytoplasm does not include the nucleus. Solution A contains 1% glucose, solution B contains 5% glucose. Sheep production is an example of extensive agriculture requiring large pastures, whereas poultry production is an example of intensive agriculture often practiced indoors. The conversion from manual thread spinning to an industrial processing approach led to increased demand for raw cotton in the agricultural sector. For example, while oxygen gas will diffuse slightly more quickly than carbon dioxide, both of them will move more quickly than iodine gas. For example, oxygen is at a higher concentration inside arteries and arterioles, when compared with the oxygen levels in actively respiring cells. (a) Osmosis UEE Main-2020 (Septeimbern) (c) Diffusion (b) Reverse osmosis (d) Dialysis 26. At that concentration, the solution is isotonic to the cell. An open beaker of water in equilibrium with water vapour is in a sealed container. The SER detoxifies drugs and harmful substances ingested by and produced in the body. The reaction proceeds as the two reactants diffuse towards each other and undergo a chemical reaction to form esters. A&P HW 5 Flashcards | Quizlet The rate of diffusion depends on the nature of interaction between the medium and material. Both farming practices require considerable labor input because the fruit is picked by hand, making it a product of intensive agriculture. D. The IV fluid should be hypotonic to the patient's blood. Na+ The image shows the movement of an insoluble molecule from the extracellular space towards the cytoplasm. (Show the details. This may seem like a complicated cycle, but it just involves the protein going back and forth between two forms: an inward-facing form with high affinity for sodium (and low affinity for potassium) and an outward-facing form with high affinity for potassium (and low affinity for sodium). 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. B. smooth endoplasmic reticulum How is the , Posted 7 years ago. Explanation: When a substance moves from higher concentrated area to a lower concentrated area, is called as diffusion. In any system, molecules are moving with a certain amount of kinetic energy. Therefore, the rate of diffusion of the gas into air also increases. This statement describes _____. To log in and use all the features of Khan Academy, please enable JavaScript in your browser. This statement describes _____. molecules move through transport proteins that have been activated by ATP. Figure showing the transport cycle of the sodium-potassium pump. Describe flow of solvent molecules across a membrane. The images shown illustrate the differences in scale of production for two methods of producing thread.
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