Simulation of cell membrane In an experiment, a drop of egg white was added to the oil. What will happen next? What does the egg white represent? what does the oil represent?
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Simulation of cell membrane
In an experiment, a drop of egg white was added to the oil. What will happen next? What does the egg white represent? what does the oil represent?
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- Cleavage Ligand Precursor Receptor Inactive Receptor Active Cell Membrane 6. The figure above shows a model of a ligand precursor being cleaved to produce an active ligand that binds to a specific receptor. Which of the following is most likely to reduce the binding of the active ligand to its receptor? (A) A change in the cytoskeletal attachment of transmembrane proteins (B) The presence of a large amount of the precursor form of the ligand (C) An increase in the ratio of the number of unsaturated to the number of saturated fatty acid tails of the membrane lipids (D) A mutation in the receptor gene that causes a substitution of a charged amino acid for a nonpolar amino acid in the ligand binding site of the receptorCytokinesis in Plant CellsPart A - Comparing plant cells and animal cells Plant cells and animal cells share many of the same structures, but each type of cell also has unique structures. In this activity, you will indicate which cell structures are found only in plant cells, only in animal cells, or in both plant and animal cells. Drag each cell structure to the appropriate bin. If a structure is found in both plant cells and animal cells, drag it to the "both" bin. ► View Available Hint(s) chloroplast plant cell only cellulose cell wall mitochondrion endoplasmic reticulum nucleus animal cell only central vacuole plasma membrane Golgi apparatus both centriole Reset Help cytoskeleton
- TONICITY DRAG THE WORDS INTO THE BLANK SPACES BEL@W TO ACCURATELY COMPLETE THE PARAGRAPH Hypertonic Isotonic Hypotonic Hypertonic Lsotonic Hypotonic animal cell plant cell A Above are a represented plant cell and an animal cell. Refer to the key on slide 5 and fill in the blanks below. (If you find yourself counting solute dots, you're working much too hard!) Assume that the cell membranes are allow only water (not the solutes) to pass through. Because the cytoplasms of the plant and the animal cell have equal concentrations of solutes, we can say that their cytoplasms are to each other. If we put both the plant and the animal cells into Solution A, we would expect no change in the cells, because Solution A is to the cytoplasm of each cell.Membrane Protein Insertion in the ER This figure displays five small hypothetical proteins. The a-helix secondary structure of the protein is bracketed and the number of amino acids in the helix is indicated. If the hypothetical ER localization sequence is green-yellow-yellow-green-yellow-red, what protein could potentially be a transmembrane protein in the plasma membrane? = Acidic = Basic = Polar (uncharged) O = Hydrophobic CO₂ T 20 CO2 T 20 NH₂ A. T 20 NH₂ B. NH₂ C. T 20 NH₂ D. NH₂ E. tot 10Cell Organelle function and Connections How are the organelles effect each other or how things made in one part of the cell may be used by another part.
- From the image provided. Do you think that a membrane potential exists for this synthetic plasma membrane? If your answer is “yes,” please indicate whether it is negative or positive at the region closer to the inner leaflet of the plasma membrane. Explain your reasoning.Concentration, Osmosis, and Cell Environments HW Quiz For each of the drawings, label what kind of environment it is in, how you know this, and what is happening to the cell. This cell is in a v solution. I know this because This cell willCell Biology 1. Describe the structural characteristics of cells that are highly specialized to do the following: (a) synthesize and secrete proteins, (b) actively transport substances into the cell, (c) synthesize lipids, and (d) phagocytize foreign substances.
- Mitosis; Sequence of Stages Number the names of the stages of mitosis from 1 to 5 to show the correct order of their sequence. [Choose ] [Choose ] in 3 [Choose] 4 [Choose] 5. [Choose]Concentration, Osmosis, and Cell Environments HW Quiz For each of the drawings, label what kind of environment it is in, how you know this, and what is happening to the cell expand and possibly undergo lysis have the vacuole expand and the cell will become turgid This cell is in collapse and become crennated have the vacuole collapse and the cell will become plasmolysed I know this b maintain itself in equilibrium with its environment This cell willCold HOT Effect of Temperature on the Rate of Diffusion Solutes move within a cell's cytoplasm largely because of diffusion. However, the rate of diffusion is affected by such factors as temperature and the size of the solute molecule. Observe the effect of different temperatures on the rate of diffusion by watching the video above. Temperature Homework • Unanswered At which temperature did solutes dissolve the fastest? Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. a At hot temperatures E Fullscreen b At cold temperatures