Ammonium

Which nitrogen cycle process is occurring when plant roots absorb ammonium ions and nitrate ions for use in making molecules such as DNA, amino acids, and proteins?

• nitrogen fixation

• nitrification

• denitrification

• ammonification

• assimilation

Which nitrogen cycle process is occurring when bacteria convert ammonium to nitrite and then into nitrate?

• nitrogen fixation

• nitrification

• denitrification

• ammonification

• assimilation

Tags

NGSS.MS-LS2-3

Which nitrogen cycle process is occurring when nitrogen in plant or animal protein is converted to ammonium?

• nitrogen fixation

• nitrification

• denitrification

• ammonification

• assimilation

When deciduous trees shed their leaves, specialized soil bacterial will consume the leaf material for energy and, in the process, will return some of the leaf nitrogen to the soil. What nitrogen cycle process is taking place?

• nitrogen fixation

• nitrification

• denitrification

• ammonification

• assimilation

Tags

NGSS.MS-LS2-3

How many hydrogen atoms are in (NH₄)₂SO₄?

• 4

• 6

• 8

• 10

Tags

NGSS.MS-PS1-1

What is the chemical formula for ammonium?

Which of the following compounds contains the ammonium ion?

Ammonium is a cation. What is its charge?

• +1

• -1

• +2

• 0

In the reaction of ammonia with water, which ion is formed?

• Hydroxide ion

• Ammonium ion

• Nitrate ion

• Sulfate ion

Which process involves the conversion of ammonia to ammonium in the soil?

• Nitrification

• Ammonification

• Assimilation

• Ionization