Concepts in Biology 14th Edition by David Bailey Eldon Enger, Enger, Frederick Ross

Exercise 1

Nobel Prize Work
The following data were obtained by a number of Nobel Prize-winning scientists from Lower Slobovia. As a member of the group, interpret the data with respect to the following:
1) Enzyme activities
2) Movement of substrates into and out of the cell
3) Competition among various enzymes for the same substrate
4) Cell structure
Data
A) A lowering of the atmospheric temperature from 22°C to 18°C causes organisms to form a thick, protective coat.
B) Below 18°C, no additional coat material is produced.
C) If the cell is heated to 35°C and then cooled to 18°C, no coat is produced.
D) The coat consists of a complex carbohydrate.
E) The coat will form even if there is a low concentration of simple sugars in the surroundings.
F) If the cell needs energy for growth, no cell coats are produced at any temperature.