which of the following best explains diffusion?

The kinetic energy of the molecules results in random motion, causing diffusion. What is required for filtration to occur? _{15}^{\mathrm{a}} \mathrm{X} & \rightarrow \beta+^{32} \mathrm{b} \end{aligned} For instance, a gas diffuses very quickly in another gas. The conversion from manual thread spinning to an industrial processing approach led to increased demand for raw cotton in the agricultural sector. Since they are relatively large openings in the plasma membrane, these integral membrane proteins also have high specificity. Which Of The Following Best Explains Diffusion Quizlet? 1. 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. The cytoplasm does not include the nucleus. Since diffusion is powered primarily by the probability of molecules moving away from a region of higher saturation, it immediately follows that when the medium (or solvent) has a very low concentration of the solute, the probability of a molecule diffusing away from the central area is higher. Epinephrine binds to a cell-surface receptor; the activated receptor catalyzes the conversion of glycogen to glucose. Direct link to Stocke's post Why does the diffusion of, Posted 7 years ago. Concentric rings of different agricultural activities surrounding a city in the midwestern United States. The image shows the movement of an insoluble molecule from the extracellular space towards the cytoplasm. Figure showing the transport cycle of the sodium-potassium pump. For instance, when water is mixed with glycerol, over time the two liquids diffuse radially into each other. If you're seeing this message, it means we're having trouble loading external resources on our website. Direct link to Srichchha Pradhan's post There are certainly more , Posted 6 years ago. Why Do Giant Pandas Have Low Libido? What is the basic difference between simple diffusion and facilitated diffusion across a cell membrane? Adult should review each experiment and determine what the appropriate age is for the students participation in each activity before conducting any experiment. Which of the following best explains the diffusion of plants and animals from their hearths of domestication? Lipids do not mix with water (recall that oil is a lipid), so the phospholipid bilayer of the cell membrane acts as a barrier, keeping water out of the cell, and keeping the cytoplasm inside the cell. Direct link to Zaeen Iqbal's post i dont quite understand t, Posted 7 years ago. It can involve either the spreading of a material through a medium or the transport of a particle across a membrane. Then tap the card to flip it. he Na+\mathrm{Na}^{+}Na+concentration of a solution was determined by measurement with a sodium ion-selective electrode. Which of the following best describes the impacts of the Second Agricultural Revolution? Her much more prepared A&P student roommate quickly realized the problem and called an ambulance. Diffusion. A fish that lives in salt water will have somewhat salty water inside itself. 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). Similarly, the medium in which diffusion occurs could also be in one of the three physical states. Red blood cells behave the same way (see figure below). Nerve cells do not have centrioles. Diffusion occurs when the spontaneous net movement of particles or molecules spreads them from an area of high concentration to an area of low concentration through a semipermeable membrane. 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. 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. Comparing the two images, which survey system was more efficient in terms of trade? An open beaker of water in equilibrium with water vapour is in a sealed container. Privacy Policy and The material that diffuses could be a solid, liquid or gas. That is because the molecules from the food odor havent diffused into that space yet. a.QH=500kW,QC=100kWb.QH=500kW,Wcycle=250kW,QC=200kWc.Wcycle=350kW,QC=150kWd.QH=500kW,QC=200kW\begin{array}{l}{\text { a. } 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 is least likely to increase the rate of diffusion? Water moves into and out of cells by osmosis. movement of molecules from an area of high concentration to an area of low concentration Which of the following is most likely to move through the cell membrane by facilitated diffusion? Therefore, they are NOT able to __________. 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). selectively permeable: the characteristic of a membrane that allows some substances through but not others. The best explanation for the diffusion of plants and animals from their hearths of domestication is option C. Contagious diffusion in the early years was a way of spreading from one person to the other. A vesicle fuses with the plasma membrane and releases its contents to the extracellular fluid. Agricultural settlement patterns are partly determined by the survey system used to organize landownership. Prior to this, very few animals had been domesticated in the Americas. \dot{Q}_{\mathrm{H}}=500 \mathrm{kW}, \dot{W}_{\text {cycle }}=250 \mathrm{kW}, \dot{Q}_{\mathrm{C}}=200 \mathrm{kW}} \\ {\text { c. } \dot{W}_{\text {cycle }}=350 \mathrm{kW}, \dot{Q}_{\mathrm{C}}=150 \mathrm{kW}} \\ {\text { d. } \dot{Q}_{\mathrm{H}}=500 \mathrm{kW}, \dot{Q}_{\mathrm{C}}=200 \mathrm{kW}}\end{array} A. C. rough endoplasmic reticulum The mixture of a solute in a solvent is called a solution. 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? Solved QUESTION 28 Which of the following best explains the - Chegg 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. If a person goes to the hospital for surgery and requires IV (intravenous) fluids, which of the following should you expect? But now you have two mixtures of different solute concentrations. With the phosphate group gone, the pump will change back to its original form, opening towards the interior of the cell. Therefore, muscle cells have numerous: Which statement regarding the smooth endoplasmic reticulum (SER) is false? 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. Agricultural technology has increased the economy of scale and the carrying capacity of feedlots, increasing profits for the farmer. Carbon dioxide is a small molecule that moves through the phospholipid bilayer with its concentration gradient by: Sodium ions are moving with their concentration gradient with the use of a protein channel across a plasma membrane. This electricity can do work. Which of the following best explains diffusion? Though water is a polar molecule, it can also diffuse through the plasma membrane. Diffusion is a physical process that refers to the net movement of molecules from a region of high concentration to one of lower concentration. There are certainly more numbers of potassium ions in the cells, but remember that there are greater numbers of sodium ions outside the cell (since for every three sodium ions moved out of the cells, two potassium ions enter the cell), therefore, resulting in a net positive charge outside the cell and net negative charge inside the cell. Which of the following best explains the spatial patterns illustrated in von Thnens model? Lettuce production in the United States is an example of commercial farming. osmosis, simple diffusion, facilitated diffusion are all what type of process? Which of the following is least likely to increase the rate of diffusion? Cells may lyse when placed into a hypertonic environment. Invention of the plow eased the intensive use of labor, and the innovation of mechanized farm equipment led to improved food production. Direct link to Yago's post Why can't the Sodium move, Posted 4 years ago. Since diffusion moves materials from an area of higher concentration to the lower, it is described as moving solutes "down the concentration gradient". movement of molecules from an area of high concentration to an area of low concentration Which of the following is most likely to move through the cell membrane by facilitated diffusion? For instance, one of the ways in which polyester is synthesized is by mixing the appropriate organic acid and alcohol in their liquid form. Explain the components present in a phospholipid. Diffusion is the mixing of substances due to the movement of their particles. Determine the type of membrane transport used to transport these sodium ions. Spaeth, E. E., and Friedlander, S.K. If you knew the answer, tap the green Know box. However, for molecules in the periphery, rapidly moving molecules in the air also influence their movement, allowing them to diffuse into the air. Which of the following concepts best explains the driving forces of What type of membrane junction allows ions to pass directly from the cytoplasm of one cell to the cytoplasm of the adjacent cell? Cells placed in a hypotonic solution will take in water across their membranes until both the external solution and the cytosol are isotonic. The gradient is steep enough that potassium ions will move out of the cell (via channels), despite a growing negative charge on the interior. 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. Use these flashcards to help memorize information. 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!? \end{aligned} Because a solute moving down its concentration gradient is spontaneous. Which of the following best explains the significance of a similarity among locations where olives, figs, grapes and lemons are grown? Eventually, the concentration of "stuff" on either side of them will even out. Process of Osmosis vs. Diffusion . The cell membrane lets certain substances enter the cell and keeps certain substances out of the cell. This page titled 8.4: Osmosis and Diffusion is shared under a CK-12 license and was authored, remixed, and/or curated by CK-12 Foundation. "Diffusion. Farmers' health is at risk in less developed countries, whereas environmental pollution is a risk in more developed countries. Glucose is the most commonly used energy source by human cells because (Points: 1) this is the most abundant macromolecule available for cellular respiration. Hi, I'm just a little curious, why can't 3 potassium ions be pumped out and 2 sodium ions pumped in(the other way around)? See our (1967). Passive Transport | Biology I - Lumen Learning Direct link to Ivana - Science trainee's post yes, dimensions also play. The two images represent different agricultural land survey patterns. (2005). In general, the inside of a cell has a higher concentration of potassium (K, If sodium ions are outside of a cell, they will tend to move into the cell based on both their concentration gradient (the lower concentration of Na, The combination of concentration gradient and voltage that affects an ions movement is called the. Mehrer, H. and Stolwijk, N. A. The material that diffuses could be a solid, liquid or gas. Which of the following spatial patterns is best explained by bid-rent theory?

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