Unit 1 Practice Test_2

Adipose tissue is present beneath the skin's surface and serves to cushion and insulate the body. Which important organic molecule is most likely present in this tissue?

• lipids

• proteins

• carbohydrates

• nucleic acids

What controls and directs the production of proteins in living things?

• amino acids

• carbohydrates

• lipids

• nucleic acids

Answer explanation

Nucleic Acids bond together to create DNA. That DNA provides the instructions to create amino acids - which then bonds together to create Proteins.

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NGSS.HS-LS1-1

Why are carbohydrates important for organisms?

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

• They are necessary for fat digestion
• They help in detoxification of the body

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NGSS.MS-LS1-7

Which statement describes the structure of protein?

• Proteins are made up of lipids
• Proteins are made up of nucleotides
• Proteins are made up of amino acids
• Proteins are made up of carbohydrates

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NGSS.HS-LS1-6

Use the Venn diagram to compare and contrast two macromolecules.

What are the titles for the letters Y and Z?

• Y: Carbohydrates; Z: Proteins

• Y: Lipids; Z: Carbohydrates

• Y: Nucleic Acids; Z: Lipids

• Y: Proteins; Z: Carbohydrates

The table identifies the four major groups of organic compounds.

Which section of the table would be described correctly with the phrase “contains nitrogenous bases”?

• W

• X

• Y

• Z

A scientist discovered a new organism in a rainforest. She is studying the DNA of the organism to find its similarity to other organisms.

What nucleotides will be present in the DNA sequence of the newly discovered organism?

• A, T, G, C

• A, U, G, C

• G, C, U, T

• G, U, A, T

Which statement is true of every living organism?

• DNA is found in 46 chromosomes.

• DNA is protected inside a nucleus.

• DNA is made of four types of nucleotides.

• DNA is found in 23 homologous chromosome pairs.

Scientists are working to design the genetic code of an organism they intend to create in a lab. Which nucleotides can they use to sequence the DNA of the organism?

• A, G, T, U

• A, C, G, U

• A, C, G, T

• A, C, T, U

An engineer is designing a new synthetic product that requires a waterproof coating. What biomolecule has the characteristics that he should try to replicate.

• Proteins
• Lipids
• Carbohydrates
• Nucleic Acids

Tags

NGSS.HS-LS1-6