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Name the substance from which microtubules are made? In which structures and cellular processes do microtubules contribute?
Define the term cytoskeleton? Also state its major constituents in animal cells?
Why are sugar and salt employed in the production of dried fruits and dried meat?
Describe the deplasmolysis of plant cells?
State the formula of the DPD for withered (or shrunken) plant cells? How is that condition possible?
Determine the values of DPD for plant cells in hypertonic, hypotonic and isotonic media?
What does the formula DPD = SF – TP mean?
Describe wall resistance of plant cells? Does this resistance facilitate or make hard the entrance of water into the cell?
Explain suction force of the plant cell? Does the suction force facilitate or make hard the entrance of water into the cell?
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How does the plant cell wall react whenever it is placed in hypotonic medium?
What are the main kinds of endocytosis?
Explain mass transportation across the cell membrane?
How does sodium-potassium pump existed in the cell membrane work? Also state what is the significance of this protein for cell?
Which are the molecules which make possible active transport via membranes?
What do active transport and facilitated diffusion have in common? What are the basic differences between them?
What are various illustrations of biological activities in which osmosis executes a significant role?
How does facilitated diffusion show similarities with the enzymatic chemical reactions?
With no saturation of transport proteins and beneath the similar concentration gradient how can the speed of simple diffusion are compared to the speed of facilitated diffusion?
How does intensity of facilitated diffusion differ in relation to the concentration of the moved substance? Also explain the limiting factor?
How the intensity of simple diffusion is differ in relation to the concentration gradient of the moved substance?