Diffusion is the mixing of substances due to the movement of their particles. If the outside environment of a cell is water-based, and the inside of the cell is also mostly water, something has to make sure the cell stays intact in this environment. Which of the following is most likely to move through the cell membrane by facilitated diffusion? What part of a cell membrane is usually in contact with the interstitial fluid? What happens when body cells are placed in a hypertonic solution? The plasma membrane is semipermeable, meaning that some things can enter the cell, and some things cannot. Water molecules will move from the side of higher water concentration to the side of lower concentration until both solutions are isotonic. 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 Through the process of uniculturalism, multiple types of foods are blended together into one cuisine. Which of the following best explains the importance of climate to agricultural practices? The mixture of a solute in a solvent is called a solution. How is the , Posted 7 years ago. Which of the following solutions will cause a red blood cell to shrink? A vesicle fuses with the plasma membrane and releases its contents to the extracellular fluid. Diffusion in the human body is necessary for the absorption of digested nutrients, gas exchange, the propagation of nerve impulses, the movement of hormones and other metabolites towards their target organ and for nearly every event in embryonic development. All the ways scientists do investigations. Farmers' health is at risk in less developed countries, whereas environmental pollution is a risk in more developed countries. thank you. 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. Channels Channel proteins span the membrane and make hydrophilic tunnels across it, allowing their target molecules to pass through by diffusion. Which of the following best describes the impacts of the Second Agricultural Revolution? how does the carrier protein "harness" energy from another molecules concentration gradient? Which of the following best explains diffusion? y1=3y2y2=12y1. Be sure to clean up when you are done. gradient? As a prokaryotic cell does not have a nucleus, the DNA is in the cytoplasm. 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. Pour all of the water down the sink, and wash out the glasses. The hypertonic solution has a lower water concentration than the hypotonic solution, so a concentration gradient of water now exists across the membrane. The second sugar solution is hypertonic to the first. start superscript, 2, comma, 3, end superscript, start superscript, 4, comma, 5, end superscript. Which of the following statements is best supported by the images? Also, think about where you see this happen in other places. When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. If the cell is moved to a 6% dextrose solution, then predict what will happen to the cell. That is because the molecules from the food odor havent diffused into that space yet. Otherwise, tap the red Don't know box. Direct link to auzennesylvester92's post Are these pumps negativel, Posted 5 years ago.
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which of the following best explains diffusion?