Author Question: The active site of nitrogenase is a cofactor that contains two transition metals. These transition ... (Read 32 times)

misspop

  • Hero Member
  • *****
  • Posts: 540
The active site of nitrogenase is a cofactor that contains two transition metals. These transition metals are ________.
 
  A) Cr and Mg
  B) Mn and V
  C) Os and Ir
  D) Fe and Zn
  E) Fe and Mo

Question 2

The atomic number indicates ________.
 
  A) the number of neutrons in a nucleus
  B) the total number of neutrons and protons in a nucleus
  C) the number of protons or electrons in a neutral atom
  D) the number of atoms in 1 g of an element
  E) the number of different isotopes of an element


blakeserpa

  • Sr. Member
  • ****
  • Posts: 338
Answer to Question 1

E

Answer to Question 2

C



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.

Did you know?

Adult head lice are gray, about ? inch long, and often have a tiny dot on their backs. A female can lay between 50 and 150 eggs within the several weeks that she is alive. They feed on human blood.

Did you know?

Pope Sylvester II tried to introduce Arabic numbers into Europe between the years 999 and 1003, but their use did not catch on for a few more centuries, and Roman numerals continued to be the primary number system.

Did you know?

The training of an anesthesiologist typically requires four years of college, 4 years of medical school, 1 year of internship, and 3 years of residency.

Did you know?

Cocaine was isolated in 1860 and first used as a local anesthetic in 1884. Its first clinical use was by Sigmund Freud to wean a patient from morphine addiction. The fictional character Sherlock Holmes was supposed to be addicted to cocaine by injection.

For a complete list of videos, visit our video library