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Because cytoplasm vesicles are seen to move in both the directions in an axon, can you conclude that some of the microtubules are oriented with their plus end facing the axon terminus and others ori
Myosin action distinct from that of kinesin in that one of the kinesin heads is always in contact with a microtubule, while both myosin heads become completely detached from the actin filament.
I have been assigned the cell wall, and cell membrane for the biology project. One feature of the project is finding out the chemical equations for the processes which take place within that organel
If you were distinguishing the molecular structure of kinesin and dynein, which part (heads or tails) would you expect to be most similar between them? Explain why?
What does the method of chemiosmoisis in the chloroplast comprise? What about the method of mitochondrion? These areas are comprised.
What would be the result on the size of a cell membrane when the secretory pathway is active? Will this cause a problem for the cell, and what may a cell do to keep this from becoming a problem?
What benefit does such compartmentalization recommend a large cell and what are two illustrations of organelles and the activities they compartmentalize?
Both types of EM utilize some sort of metal coating, thus how do you describe that one kind (transmission) generates a two dimensional image and the other kind (scanning) produces a three dimensiona
Describe what happens to NAD.2H produced throughout the glycosis: a) In an animal cell respiring aerobically, and b) In an animal cell respiring anaerobically.
Consider the function of coenzyme NAD in glucose oxidation. In the method of glycolysis the formation of pyruvate comprises the reduction of the coenzyme NAD to NAD.2H.
Compare and contrast the repressive effects of chromatin and DNA modifications with the repressive effects of RNAi. Comprising:
You have been provided a picture of a cell. The magnification of the picture is 8000 X. The cell in this picture is 2 cm in length. Based on the information given, this job finds out what is the rea
Bread ingredients comprise milk, sugar, flour and salt. Which of these is required for maximum fermentation by the yeast? What tests could be done in the lab?
The integrity of the plasma membrane is necessary for cellular survival. a) Could the immune system use this fact to destroy foreign cells which have invaded the body?
In what sense can I claim that the inner surface of the nuclear envelope, the ER, of vesicles and of the Golgi cisternae is really connected with the outside of the cell?
I am presently studying the intracellular distribution of a particular protein. The protein is usually Golgi-resident. What would happen to this distribution if I treated the cell with an inhibitor
You make radioactively labeled ribosomal subunits and you microinject them to cells which you are culturing in the laboratory. At different times after you inject the subunits, you take a small amou
Write down the three chief components of eukaryotic cell membranes? Where does each originate? What organelle synthesizes new membrane? What accounts for the stability of phospholipids bi-layers in
What's the difference between transport vesicles, secretory vesicles and endocytotic vesicles?
If the rates of synthesis of both A and B were suddenly raised 10 fold to 10,000 molecules per second-without any change in their average lifetime-how many molecules of A and B would there be after
Consider the signaling pathway which proceeds via three protein kinases which are sequentially activated by phosphorylation. In one case the kinases are held in a signaling complex by a scaffolding
Write down the merits and demerits of using random transgenic integration compared with homologous recombination to introduce DNA into the genome?
As multicellular organisms develop from embryo to adults, gap junctions are made and broken in specific patterns, comprising specific tissues.
Explain why can only eukaryotic cells evolve into the multicellular organisms? Why can't prokaryotic bacterial cells develop into the multicellular organisms as well?
I want a clear and detailed description on biological membrane features such as biochemical properties (example: composition, alignment, special features and so on), biological transport routes and