CHNOPS, cell size, microscopic measurement

Which element is most abundant in the Earth's atmosphere?

• nitrogen

• helium

• carbon dioxide

• oxygen

Which element is found in all proteins and amino acids (but not carbs or lipids)?

• oxygen

• nitrogen

• carbon

• hydrogen

Which element can form all types of chemical bonds (single, double, and triple)?

Capable of forming only single bonds, what element can form a greater variety of different compounds than any other element?

• Hydrogen

• Carbon

• Oxygen

• Phosphorus

Tags

NGSS.HS-LS1-6

Which element is bound with calcuim in bones and provides them with strength?

• Phosphorus

• Sulfur

• Nitrogen

• Hydrogen

What is the lightest, simplest, most abundant element in the universe?

Tags

NGSS.MS-PS1-1

This element forms the "backbone" of all organic biomolecules.

• chnops

• carbon

• calcium

• boron

Tags

NGSS.HS-LS1-6

This element is noted for its presence in the amino acids cysteine and methionine.

• phosphorus

• oxygen

• hydrogen

• sulfur

This element is important in chemosynthesis, a bacterial process similar to photosynthesis.

• sulfur

• glucose

• oxygen

• helium

ATP is a molecule that acts like a battery, providing cells with energy. It relies upon which element to release energy for cellular use?

• carbon

• hydrogen

• phosphorus

• nitrogen

Tags

NGSS.MS-LS1-6

NGSS.MS-LS1-7