Nitrogen Element
What is the atomic number of nitrogen?
7
Name 1 of 2 biomolecules nitrogen is a building block of? (If you name both you get double the points)
DNA and amino acids (which make proteins)
Approximately what percent of nitrogen is in the atmosphere?
78%
Decomposers break down organisms and convert nitrogen into which of its forms?
Ammonia (NH3)
Why is the Nitrogen Cycle important?
Because there is only a fixed amount of nitrogen on Earth, all living organisms need it so we need to recycle it or else we'd run out!
What is the atomic mass of nitrogen?
14
How might you tell that a plant does not have enough nitrogen?
Yellow leaves
What form of nitrogen can be used by organisms?
Nitrate Ion (NO3-1)
Nitrogen Fixing bacteria, convert atmospheric nitrogen into which of its other forms?
Ammonia (NH3)
How do animals get nitrogen?
By eating plants or eating animals have eaten plants
At room temperature, what state of matter is nitrogen? (solid, liquid or gas)
gas
What protein do plants make that allows them to photosynthesize?
Chlorophyll
What is the name of the process for converting atmospheric nitrogen into its more useful form?
Nitrogen Fixation
Nitrifying bacteria convert ammonia (NH3) into which of its forms?
Nitrate (NO3)
Why is rain like free fertilizer?
NO3 dissolves in the raindrops and falls to the ground where it can be absorbed by plants
N2
How many nitrogenous bases are used to make DNA?
4
(Adenine, Guanine, Cytosine and Thymine)
What is the name of the process of transforming back to atmospheric nitrogen?
Denitrification
Nitrogen Fixing bacteria live in little 'bumps' on the roots of plants. What are these little 'bumps' called?
Nodules
How does lightning produce NO3 from the atmospheric nitrogen?
Why is nitrogen gas stable and unreactive?
What does DNA stand for?
deoxyribonucleic acid
What is the name of the method of artificially producing nitrates in a laboratory?
Haber-Bosch Process
Which category of plants have a symbiotic relationship with nitrogen fixing bacteria? (Provide a specific example for another 100 points)
Legumes
Ex. Soybeans, clover, peas, alfalfa
Why do Nitrogen Fixing bacteria stay with the plants?
The bacteria provide the plant with useable nitrogen, and the plant provides the bacteria with sugar to live