Amino acids are the monomers of proteins. Which functional group in the amino acid determines its specific shape and function?

• R group

• amino group

• carboxyl group

• hydroxyl group

Tags

NGSS.HS-LS1-6

What shape does the molecule in the image have?

• linear

• tetrahedral

• double helix

• single helix

Tags

NGSS.HS-LS1-1

Coal is a natural material, formed from ancient organic compounds. Which element is LEAST likely to be found in a sample of coal?

• carbon

• hydrogen

• silver

• nitrogen

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which of these elements is likely to be found in an organic compound?

• Helium

• hydrogen

• mercury

• tin

Tags

NGSS.HS-LS1-6

Atoms of which of these elements are part of many organic molecules?

• calcium

• magnesium

• oxygen

• silicon

Proteins are compounds formed in the cells of plants and animals. Which element is included in every protein molecule?

• calcium

• carbon

• fluorine

• sodium

Tags

NGSS.HS-LS1-6

Which of these elements is found in the greatest amount in organisms?

• carbon

• iron

• lead

• neon

Which of the following combinations of elements make up over 90% of living things?

• hydrogen, carbon, oxygen, nitrogen

• carbon, oxygen, sulfur, hydrogen

• phosphorous, nitrogen, hydrogen, oxygen

• sulfur, oxygen, carbon, phosphorous

The nucleus contains DNA. Which statement BEST describes how DNA controls the working of the cell?

• It codes for proteins.

• It inhibits division of cells.

• It helps in energy transformation.

• It regulates traffic in and out of the cell.

Tags

NGSS.HS-LS1-1

Living cells synthesize long chains of amino acids called proteins. Which substance provides the information needed to correctly sequence the amino acids during protein synthesis?

• ATP

• mRNA

• tRNA

• DNA

Tags

NGSS.HS-LS1-1