Author Question: The active site of nitrogenase is a cofactor that contains two transition metals. These transition ... (Read 46 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?

Hippocrates noted that blood separates into four differently colored liquids when removed from the body and examined: a pure red liquid mixed with white liquid material with a yellow-colored froth at the top and a black substance that settles underneath; he named these the four humors (for blood, phlegm, yellow bile, and black bile).

Did you know?

During the twentieth century, a variant of the metric system was used in Russia and France in which the base unit of mass was the tonne. Instead of kilograms, this system used millitonnes (mt).

Did you know?

Nearly 31 million adults in America have a total cholesterol level that is more than 240 mg per dL.

Did you know?

The people with the highest levels of LDL are Mexican American males and non-Hispanic black females.

Did you know?

People with high total cholesterol have about two times the risk for heart disease as people with ideal levels.

For a complete list of videos, visit our video library