Eventually aquaporins come to the end of their working life and need to be replaced. To which organelle will an old aquaporin be sent for hydrolysis?
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Eventually aquaporins come to
the end of their working life and need to be
replaced. To which organelle will an old
aquaporin be sent for hydrolysis?
Step by step
Solved in 2 steps
- Both H+ and Ca2+ are ions that move through thecytosol. Why is the movement of H+ ions so much fasterthan that of Ca2+ ions? How do you suppose the speed ofthese two ions would be affected by freezing the solution?Would you expect them to move faster or slower? Explainyour answer.Where in a thioglycollate tube would you expect to find organisims that atr aerobic miacroaerophilic facultative/aerotolerant or strictly anaerobic?Why is it advantageous for the cell membrane to be fluid in nature?
- How does Thermoplasma strengthen its cytoplasmic membraneto survive without a cell wall?Some cells lining tubules in the kidneymaintain normal cell volume bysynthesizing organic solutes. Where inthe kidney would you expect to findthese cells? Explain.Why do phospholipids tend to spontaneously orientthemselves into something resembling a membrane?
- How do cilia and flagella move, and what is dynein’s role in the process? Contrast the ways in which flagella and cilia propel eukaryotic microorganisms through water.Detergents are synthetic soaplike substances that are used todisrupt membranes and extract membrane proteins. Explainhow this process works.How do lysosomes avoid digestingtheir own membranes?
- What cellular structures distinguish prokaryotic andeukaryotic cells? What are some differences between acell wall and a cell membrane? In what types oforganisms would you expect to find these structures?Describe the functions of peroxisomes. How is this type of organelle formed?Why do bacterial cells need cell walls? Do all bacteria have cellwalls?