Unit 1 - warmup 1

Coal is a natural material formed from ancient organic compounds. Which element is

likely to be found in a sample of coal?

• oxygen
• hydrogen
• carbon
• helium

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

• Carbon
• Oxygen
• Iron
• Hydrogen

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NGSS.HS-LS1-6

NGSS.HS-LS2-5

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

• Calcium

• Carbon
• Fluorine

• Sodium

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NGSS.HS-LS1-6

A biological molecule is analyzed, and it is discovered that the molecule is composed of several amino acids. Which of these identify the biological molecule?

• Protein
• Nucleic acid
• Lipid
• Carbohydrate

Which of these statements describes how monomers combine and create macromolecules?

• Amino acids combine to make proteins.

• Glucose molecules combine to make nucleic acids.

• Nucleic acids combine to make starch.

• Proteins combine to make glucose.

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Smaller substances are linked to make up more significant ones in living things. Which of the following correctly describes a more considerable substance by linking smaller substances?

• Nucleotides are linked to make up DNA.

• Nucleic acids are linked to make up proteins.

• Proteins are linked to make up nucleotides.

• Amino acids are linked to make up DNA.

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Why are carbohydrates essential for organisms?

• They regulate cell processes and are structural components.

• They store energy and are components of waterproof coverings.

• They are structural components and the primary source of energy.

• They store and transmit hereditary information.

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Which statement describes the structure of protein?

• composed of chains of monosaccharides

• composed of long chains of amino acids

• composed of single or double strands of nucleotides

• composed of a glycerol molecule bonded to fatty acid molecules

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NGSS.HS-LS1-1

Which molecule is comprised of monomers of nucleic acids or nucleotides?

• Glucose
• DNA

• Fatty acids
• Amino acids

Which chemical formula represents an organic compound?

• H₂O

• HNO₃

• CuCl

• C₆H₁₄

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NGSS.HS-LS1-6