Which of the following is an example of an isolated system?

1.) Which of the following is an example of an isolated system?

 
2.) Which is the ultimate destiny of all energy that is used by animals?

 

3.) What provides the most direct and accurate measurement of metabolic rate of an organism?

 

4.) Respiratory exchange ration (R) is:

 

5.) Suppose an animal is oxidizing food according to the following reaction:

1 mol C6H12O6 + 6 mol O2 ® 6 mol CO2 + 6 mol H2O + 2820 kJ/mol.

6.) What is the respiratory exchange ratio (R)?

A. 1

B. 6

C. 18

D. 2820/6

E. 2820


7.) Suppose an animal’s respiratory exchange ratio is 0.77. What foodstuff is it predominantly utilizing at the moment?