which of the following best explains diffusion?

Which of the following explains one of the negative consequences of the Green Revolution that would be of greater c, Runoff of agricultural chemicals into the local groundwater that pollutes water resources. Which of the following best explains diffusion? Primary active transport, secondary active transport, exocytosis, and endocytosis are all what type of process? As an example, let's suppose we have a high concentration of sodium ions in the extracellular space (thanks to the hard work of the sodium-potassium pump). A vesicle fuses with the plasma membrane and releases its contents to the extracellular fluid. Why Do Giant Pandas Have Low Libido? The image shows the movement of an insoluble molecule from the extracellular space towards the cytoplasm. Grocery stores sell oranges that are grown in locations with similar climates but different growing seasons. What four steps should you take to reduce your risk for foodborne illnesses? The tonicity of the IV fluid doesn't matterthe patient won't be in the operating room that long so any tonicity would be OK for a couple of hours. Fish cells, like all cells, have semipermeable membranes. 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. A. smooth endoplasmic reticulum Which of the following compares this geographic relationship between these revolutions? A heavier molecule with a larger surface area will diffuse slowly, while smaller, lighter particles will diffuse more quickly. 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. When placed in a hypertonic solution, a red blood cell will lose water and undergo crenation (shrivel). Be sure to clean up when you are done. Which of the following best explains the potential impact of rising global temperatures on agricultural regions? Diffusion is the mixing of substances due to the movement of their particles. Then tap the card to flip it. Both domesticated plants and animals spread across the globe through contagious diffusion in early years by farmers and traders, and later by relocation diffusion through European exploration and colonialism. An example of this is the way the noxious smell of ammonia gas spreads in air. In other words, plasma . Question 1 Which of the following can best explain why eukaryotic cells \dot{Q}_{\mathrm{H}}=500 \mathrm{kW}, \dot{Q}_{\mathrm{C}}=100 \mathrm{kW}} \\ {\text { b. } ", Biologydictionary.net Editors. The liver is an organ that can synthesize lipids, such as cholesterol, and detoxify poisons, such as alcohol. Which of the following best explains the importance of climate to agricultural practices? By diffusion: glucose will move from solution B to solution A. Put it in freshwater, and the freshwater will, through osmosis, enter the fish, causing its cells to swell, and the fish will die. Terms of Service. 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. what is the main difference between active transport using a carrier protein, and passive transport using facilitated diffusion? Direct link to Stocke's post Why does the diffusion of, Posted 7 years ago. The river in the long lot survey system provided better access to waterways to transport goods to market. Look at the large card and try to recall what is on the other side. What part of a cell membrane is usually in contact with the interstitial fluid? if there are more Potassium ions in a cell, how is the cell negatively charged? & y_1^{\prime}=3 y_2 \\ Figure showing the transport cycle of the sodium-potassium pump. Which of the following best explains diffusion? 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. Diffusion happens slowly and only across the small surface of interaction between the two fluids. When the roommate told the Emergency Department doctor what had happened, the doctor quickly began administering IV (intravenous) fluids. Question 56. Imagine this just like a hydroelectric power station uses the energy of water flowing down the waterfall to create electricity. 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Water moves into and out of cells by osmosis. 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. Which cell junctions prevent substances from passing between adjacent cells? Direct link to Zaeen Iqbal's post i dont quite understand t, Posted 7 years ago. How To Prolong Ejaculation During Intercourse? However, for molecules in the periphery, rapidly moving molecules in the air also influence their movement, allowing them to diffuse into the air. During the Green Revolution, agricultural practices from more developed countries diffused to less developed countries in Asia and Africa. sideropenia _____________________________________________________. Molecules that cannot easily pass through the bilayer include ions and small hydrophilic molecules, such as glucose, and macromolecules, including proteins and RNA. AP Bio Final 2019 | Biology Quiz - Quizizz Which statement displays the address of the variable num1? Minerals For Erectile Dysfunction - Camping Estanyet A. Epinephrine binds to a cell-surface receptor; the activated receptor catalyzes the conversion of glycogen to glucose. Solution A and solution B are separated by a semipermeable membrane. Primary and secondary active transport. Which of the following best explains the diffusion of plants and animals from their hearths of domestication? 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. 3.5 Passive Transport - Concepts of Biology - 1st Canadian Edition Biologydictionary.net, April 27, 2017. https://biologydictionary.net/diffusion/. Sucrose cannot pass through a red blood cell's plasma membrane, but water and urea can. A solution that contains fewer solutes than the cell is ________ to the cell. In facilitated diffusion, molecules only move with the aid of a protein in the membrane. In an antiporter it uses the energy of the ions flowing down their concentration gradient. 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. 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 is not required for osmosis to occur? diffusion: [noun] the state of being spread out or transmitted especially by contact : the action of diffusing. As time progresses, the differential gradient of concentrations between high and low will drop (become increasingly . 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. Your cells have a plasma membrane that helps to guard your cells from unwanted intruders. Pour all of the water down the sink, and wash out the glasses. Diffusion is the process of movement of molecules under a concentration gradient. Which of the following best explains the reasons for the similarities and differences between the two land survey systems shown? 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). A vesicle fuses with the plasma membrane and releases its contents to the extracellular fluid. In less developed countries, pesticides are typically applied by hand, whereas pesticides are typically applied by tractors or aircraft in more developed countries. The plasma membrane (see figure below) is made of a double layer of special lipids, known as phospholipids. Most lettuce is produced, processed, and packaged for sale in supermarkets that are a significant distance from where the product was grown. Even in large industrial reactions, when two liquids are mixed together, diffusion brings the reactants together and allows the reaction to proceed smoothly. The SER synthesizes the majority of the lipid components of the plasma membrane. Passive transport is a way that small molecules or ions move across the cell membrane without input of energy by the cell. Accessibility StatementFor more information contact us atinfo@libretexts.orgor check out our status page at https://status.libretexts.org. It is the random motion of the molecules that causes them to move from an area of high concentration to an area with a lower concentration. Nuclear pores connect the cytoplasm with the nucleoplasm and allow substances to move between the two areas. does the glucose molecule just randomly attach itself to the protein when it's about to transport a sodium ion to the other side? Direct link to Yuya Fujikawa's post Hi, I'm just a little cur, Posted 5 years ago. A. To move substances against a concentration or electrochemical gradient, a cell must use energy. Direct link to Samuel Mayer's post In an antiporter it uses , Posted 7 years ago. The hypertonic solution has a lower water concentration than the hypotonic solution, so a concentration gradient of water now exists across the membrane. Direct link to auzennesylvester92's post Are these pumps negativel, Posted 5 years ago. 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. The three main kinds of passive transport are diffusion (or simple diffusion), osmosis, and facilitated diffusion.

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