Cellular respiration

Why is fat a good energy storage molecule in animals? How about Glycogen? Please keep answer short and precise as possible!!!!!

Cellular Respiration

If the conversion of pyruvate to lactate or ethanol and CO2 doesn't yield any energy for anaerobic cells, why do they do it? Please keep answer short and precise as possible!!!!!

Comparine the inner membrane of mitochrondria and the inner membrane of chloroplasts.

1. What two molecules do they have in common? 2. What two functions do they share? 3. How could I distinguish between the membrane of a mitochrondria and inner membrane of a chloroplast?

Translocation of Proteins

A. Explain the experimental results that are seen in the absence of microsomes (Figures 8-10, lanes 1 to 4). B. Using the three criteria outlined in the problem decide whether the experimental results in the presence of microsomes (lanes 5 to 8) indicate that the protein is translocated across microsomal membranes. Explain the migration of the proteins in lanes 5, 6 and 8. C. Is the protein anchored in the membrane, or is it translocated all the way through the membrane? *(Please see attachment for further explanation and diagrams)

Density Distribution of Viral DNA

A. Explain how the three density peaks in Figure 9-20 are related to replication of the injected DNA. Why is no 32P radioactivity associated with the light peak and why is no 3H radioactivity associated with the heavy peak? B. Does the injected DNA mimic the behaviour you would expect for the chromosomal DNA? C. Why do you think that cycloheximide prevents the appearance of the most dense peak of DNA? *(Please see attachment for further information and diagrams)