Biomolecules STAAR

Enzymes perform which of the following functions within living cells?

• inhibiting the translation of proteins

• providing structural stability

• transmitting ultraviolet rays

• catalyzing chemical reactions

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Which of these is NOT true?

• Enzymes can denature (change shape) when the temperature gets too high.

• Enzymes can only be used once in a chemical reaction. 

• Extreme pH can denature enzymes.

• Enzymes speed up chemical reactions. 

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NGSS.HS-PS1-2

The graph shows how enzymes affect reactions in cells. Which statement best summarizes the information shown in the graph?

• Enzymes increase the energy of the reactants.

• Enzymes decrease the energy level of the products.

• Enzyme decrease the activation energy of the reaction.

• Enzymes reverse the direction of the reaction.

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NGSS.HS-PS1-5

Which biomolecules contains your genetic information?

• Proteins

• Lipids

• Carbohydrates

• Nucleic Acids

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NGSS.HS-LS3-1

NGSS.HS-LS3-2

The biomolecule that holds an organism's genetic information is called ___________.

• carbohydrate

• lipid

• nucleic acid

• protein

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NGSS.HS-LS1-1

NGSS.HS-LS3-1

What do monomers do?

• Bond to make a polymer

• Create essential proteins

• Stores energy

• Splits to make more cells

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Which organic molecule would a long-distance runner most likely choose to eat two hours before a race?

• A protein, because it builds muscle mass.

• A lipid because it provides long term energy storage.

• A carbohydrate because it releases energy quickly.

• A protein, because it transports oxygen into the blood stream.

Monosaccharides are the building blocks of which group of biomolecules?

• protein

• lipid

• carbohydrate

• nucleic acid

Which biomolecules transport oxygen and other substances and also form part of most organelles?

• Lipids

• Carbohydrates

• Proteins

• Nucleic Acids

Which biomolecules provide quick energy for the cell and also provide materials to build the cell membrane/wall?

• Carbohydrates

• Proteins

• Lipids

• Nucleic Acids