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Consider a simple spherical model cell that consists of cytoplasm and a plasma membrane.
The cell's initial volume is 2 nL and contains 0.2 M protein. The cell is placed in a large volume of 0.05 M CaCl2. Neither Ca++ nor Cl- can cross the plasma membrane and enter the cell. Are the 0.05 M CaCl2 solutions hypotonic, isotonic or hypertonic relative to the osmolarity inside the cell? Describe what happens to the mathematically cell as it achieves equilibrium in this new environment. What will be the final osmolarity of the cell? What will be its final volume?
What are the main causes of the loss of biological diversity nowadays? The biggest dangers to biological diversity today are the action of humans. The most of them is the destr
You have two enzymes, 1 and 2. Both convert substance A into substance B. 1 is inhibited by B, because B partially blocks the active site and will not allow more A to enter. 2 is i
Define the properties of solutions Several properties of solutions are particularly important in food preparations. Amongst these are colligative properties, such as vapour pre
What is the result of Post Myocardial Infarction Ventricular ? Results: Hospital mortality may be as high as 30 per cent. This depends on the extent of infarction and- pre-op
Mechanism of Stomatal Opening It has been known for over a century that stomata open because of reversible turgor changes in the guard cells. Stomata open when turgor in the g
Flexibility Exercises and Examples In flexibility exercises, movable joints allow one or more of the following types of movements. Flexion - Flexion decreases the joint ang
Define Transverse section of body of male Ascaris? 1. Body wall consists of the following: (a) Cuticle is the outermost layer. It is a thick, tough, elastic membrane
The cytoskeleton is a network of very little tubules and filaments spread throughout the cytoplasm of eukaryotic cells. It is made of microtubules, microfilaments and intermediate
Cardiac surgical intervention has an increasingly important role in the treatment of intracardiac complications of endocarditis. Retrospective data suggest that mortality is unacce
Effects on Weather - Air pollutants Dust, smoke and other suspended particulate matter reduce visibility. Fly-ash also affects visibility by intercepting and scattering solar
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