Concept explainers
(a)
To determine: What happens to the cells when injected with large amounts of purified gelsolin.
Introduction: Gelsolin is a member of a family, villin. Gelsolin is a protein which binds to the actin filament and helps in its assembly and disassembly.
(b)
To determine: What happens to the cell when cells treated with latrunculin A, and the drug is washed out.
Introduction: Latrunculin A is a drug, extracted from the Latrunculia magnifica, which is a Red Sea Sponge. This drug affects the
(c)
To determine: The direction of the point of arrowhead-shaped decorations, in which the cells are treated with a chemical fixative and prepared for electron microscopy.
Introduction: Chemical fixatives are used to fix the structures in a state by preventing its biochemical reactions. Fixation is the crucial step in sample preparation for microscopy.
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Becker's World of the Cell (9th Edition)
- Short Answer. Please answer the in a semtace or less. As discussed in lecture, after the death of a certain type of bacteria, patients suffering from a bacterial infection may demonstrate an increase of symptoms. These symptoms are due to a release of particular 1) Name the specific chemical component that can cause this worsening of symptoms in our pateient? 2) Where is this chemical normally found? (Name the specific anatomical part) 3) What type of bacteria produce this chemical? 4) Name the antigenic portion of the overall structural component. EC: 5) Name the molecule that this is a part of. (+1) Click Save and Submit to save and submit. Click Save All Answers to save all answers. 30°F Mostly cloudy O Search 2 Save All Answers Save and Submitarrow_forwardProblem. In a practical session, students studied a stained blood smear of a mouse with bacteria that were phagocytosed by leukocytes. Which organelle of these cells completes the destruction of these bacteria? Justify the answer.arrow_forward10-¹1 M. A 1 nM (10-⁹ M) solution of lysozyme is o An Fab fragment binds to lysozyme with a dissociation constant of Kå treated with increasing concentrations of the Fab fragment. At what concentration of added Fab will half of the lysozyme be bound to the Fab? [F] = nMarrow_forward
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- Compared to the rectal and vaginal routes. If an active substance has a high logP, this constitutes a limiting factor for bioavailability when formulated in a hydrophobic base. Briefly explain why.arrow_forwardIngredient. A vaginal douche powder What would be the percentage concentration of the resultant solution after a 5-g How many milliliters of a 0.2% solution of a skin test antigen must be used to pre- packet of powder is dissolved in enough water to make 1 quart of solution? pare 4 mL of a solution containing 0.04 mg/mL of the antigen?arrow_forwardHelp me fast with detail explanation. Definitely I will give Upvote.arrow_forward
- different concentrations. Identify if the solutions in the beakers are Isotonic, hypertonic or hypotonic munh would zalra makeLhar clienr's style took 4 hours Directions: The diagrams that follow show cells of different concentrations placed in beakers of y-15(42+50 ame: L6-8h Science: Cell Transport: Tonicity Date: Team: HOMEWORK to the cell's concentration. The solution of the beaker is: The solution of the beaker is: 2. 1. The solution of the beaker is: The solution of the beaker is: 4. 3. 5. Explain your answer to Diagram #1. 11arrow_forwardInducers and Inhibitors of AEP. Short peptides such as legumain stabilization and activity modulation (LSAM) domain and αvβ3 integrin could enhance the activity of AEP. LSAM domain known as the prodomain of AEP blocks substrate binding before activation. This prodomain has a helical structure and two independent peptides. One is an activation peptide (AP, K287 to N323), and the other is a LSAM domain. LSAM domain remains even after AP is cleaved and released from protease at neutral pH via electrostatic interaction. AEP without LSAM domain has a lower melting temperature than AEP with LSAM domain [77, 117]. Another short peptide, αvβ3 integrin, can directly interact with AEP, and after forming a complex, the optimal pH for AEP activity is increased from 5.5 to 6.0. It indicates that αvβ3 binding could induce conformational stabilization of AEP accompanied by deprotonated C189. αvβ3 does not directly interact with the AEP active site; however, AEP docks to the αvβ3 RGD-binding site…arrow_forwardFill in the Blanks. What are the correct answers?arrow_forward
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