which of the following best explains diffusion?

What is the basic difference between simple diffusion and facilitated diffusion across a cell membrane? molecules move through transport proteins that have been activated by ATP. The plasma membrane (see figure below) is made of a double layer of special lipids, known as phospholipids. If a person goes to the hospital for surgery and requires IV (intravenous) fluids, which of the following should you expect? If there was a coolant near the mouth of a crucible heating iodine how would that affect its rate of diffusion? fats and proteins yield too much energy for the cells to process. This results in swelling of the cell and potential hemolysis (bursting) of the cell. He should be given a hypotonic drip to draw fluid out of his cells. Direct link to City Face's post Because a solute moving d, Posted 7 years ago. However, the township-and-range system uses simplified calculation to create a more ordered landscape. The Diffusion of Oxygen, Carbon Dioxide, and Inert Gas in Flowing Blood. Instead of feeling drunk, she felt nauseated, developed a severe headache, began to get confused, and then became unconscious. Direct link to l's post Questions: Have you ever colored a picture with marker and noticed that two touching colors begin to bleed together? Glucose is the most commonly used energy source by human cells because (Points: 1) this is the most abundant macromolecule available for cellular respiration. Be sure to clean up when you are done. For best results enter two or more search terms. Which of the following best explains diffusion? Water moves into and out of cells by osmosis. 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. Which of the following is most likely to move through the cell membrane by facilitated diffusion? 1. Direct link to Ivana - Science trainee's post Because it is faster to u, Posted 7 years ago. a.QH=500kW,QC=100kWb.QH=500kW,Wcycle=250kW,QC=200kWc.Wcycle=350kW,QC=150kWd.QH=500kW,QC=200kW\begin{array}{l}{\text { a. } C. Secondary active transport occurs when the movement of one substance is coupled with the passive transport of a second substance. How, exactly, does the sodium-potassium pump establish a voltage across the membrane? Direct link to Dovid Shaw's post how does the antiporter p, Posted 7 years ago. The plants and animals diffused to a region with climate and geography similar to that of their point of domestication. In the case of a cell, positive and negative charges are separated by the barrier of the cell membrane, with the inside of the cell having extra negative charges relative to the outside. The use of improved plant hybrids and agricultural chemicals. So something must protect the cell and allow it to survive in its water-based environment. Water is attracted to the compartment with a lower osmotic pressure. Grocery stores sell oranges that are grown in locations with similar climates but different growing seasons. The mixture of a solute in a solvent is called a solution. Na+ Ions move easily through water, which is polar, but cannot pass directly through the lipid (nonpolar) part of the cell membrane. Each cell has a long tail that moves in a whip-like manner. Which of the following best explains the Green Revolution's highly variable level of success in increasing agricultu. movement of molecules from an area of high concentration to an area of low concentration. Farmers' health is at risk in less developed countries, whereas environmental pollution is a risk in more developed countries. What happens when body cells are placed in a hypertonic solution? Mr. Weddington was admitted to the hospital with chronic heart failure. In this form, the pump really likes to bind (has a high affinity for) sodium ions, and will take up three of them. Which of the following explains how global demand for palm oil has proved beneficial and detrimental f. Palm oil exports provided substantial corporate profits, but the growth in the industry resulted in heavy deforestation in both countries. The rate of this movement depends on the energy of the molecules. The second sugar solution is hypertonic to the first. A. Between 1950 and 1990, wheat production in India in average pounds per acre more than tripled, which allowed India to meet its populations need for food. The molecules move from a region of higher concentration to a region of lower concentration until the concentration becomes equal . 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? C. The SER manufactures proteins for export from the cell. What is the basic difference between simple diffusion and facilitated diffusion across a cell membrane? In an antiporter it uses the energy of the ions flowing down their concentration gradient. The material that diffuses could be a solid, liquid or gas. Question 16 30 seconds Q. Electrochemical gradients and the membrane potential. Also, it is spatially more available than in the case of ATP. Lettuce production in the United States is an example of commercial farming. To extend the example given above, if the block of dry ice is broken into multiple pieces, the area that interacts with the atmosphere immediately increases. C. rough endoplasmic reticulum Passive transport is a way that small molecules or ions move across the cell membrane without input of energy by the cell. Midlatitude climates tend to support similar agricultural crops and practices, such as wheat farming in the United States and China. Which of the following explains why oranges are available. 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 . Primary and secondary active transport. This type of transport is known as _____. Cells utilize oxygen in the mitochondria for aerobic respiration, which generates carbon dioxide gas as a byproduct. What part of a cell membrane is usually in contact with the interstitial fluid? 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. & y_1^{\prime}=3 y_2 \\ As a result of the EUs General Data Protection Regulation (GDPR). 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 solutions contains the most solute? Some molecules can go through the cell membrane to enter and leave the cell, but some cannot. 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). Mastering A&P Chapters 1-3 Flashcards | Quizlet A. Sucrose cannot pass through a red blood cell's plasma membrane, but water and urea can. Conversely, in active transport, the solute moves against the concentration gradient, from regions of lower to higher concentration. The images shown illustrate a change that took place as the Second Agricultural Revolution coincided with the Industrial Revolution. Diffusion is a physical process that refers to the net movement of molecules from a region of high concentration to one of lower concentration. What assists the movement of substances by facilitated diffusion? The sodium-potassium pump uses ATP to move sodium and potassium ions across the plasma membrane. Your cells have a plasma membrane that helps to guard your cells from unwanted intruders. The images show devices developed during the Second Agricultural Revolution. In other words, plasma . Direct link to Stocke's post Why does the diffusion of, Posted 7 years ago. Which one of the following processes can explain this? The inside of all cells also contain a jelly-like substance called cytosol. Which of the following best explains a negative economic consequence of the Green Revolution in less developed countries as compared to more developed countries? One of the main characteristics of . Which of the following best explains the process illustrated by the image? When deoxygenated blood is in your capillaries in your lungs, the oxygen in your lungs diffuses from a higher concentration in your lungs to the lower concentration in your blood. 1) The "sodium/glucose symporter", known as SGLT (sodium glucose linked transporter), receives the energy needed to perform its transport from the electrochemical gradient established by the sodium/potassium pump. Heroes and Highlights in the History of Diffusion. A Diffusion provides encryption strength, while confusion provides data integrity B. Diffusion provides function integrity, while confusion provides encryption confidentiality. Technological innovations, such as the devices shown in the images, and increased agricultural productivity led to better diets, longer life expectancies, and more people available for work in factories. Nuclear pores connect the cytoplasm with the nucleoplasm and allow substances to move between the two areas. Sheep production in New Zealand and poultry production in Arkansas produce food animals for human consumption. Channels Channel proteins span the membrane and make hydrophilic tunnels across it, allowing their target molecules to pass through by diffusion. Each of these factors, independently and collectively can alter the rate and extent of diffusion. To see how well you know the information, try the Quiz or Test activity. What is required for its transport? Which of the following explains the prevalence of banana plantations in Central America? QUESTION 28 Which of the following best explains the role of transcription in a cell? Secondary active transport involves the movement of water by osmosis into a cell. Farmers in less developed countries were able to increase their profits from growing and exporting high-yield grain to levels similar to those in more developed countries. In an isotonic solution, the flow of water in and out of the cell is happening at the same rate. gradient? What type of membrane junction allows ions to pass directly from the cytoplasm of one cell to the cytoplasm of the adjacent cell? A substance moves by facilitated diffusion into a cell. The protein can be toggled back and forth between these forms by the addition or removal of a phosphate group, which is in turn controlled by the binding of the ions to be transported. The membrane potential of a typical cell is -40 to -80 millivolts, with the minus sign meaning that inside of the cell is more negative than the outside, As an example of how the membrane potential can affect ion movement, lets look at sodium and potassium ions. Which of the following statements most accurately compares these two agricultural practices? What is required for filtration to occur? What is the basic difference between simple diffusion and facilitated diffusion across a cell membrane? 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.

Frisco Isd 6th Grade Math Curriculum, Fleur Breaks Harry's Heart Fanfiction, Articles W