Which of the following will most likely cause an enzyme to denature?

• Heat

• Acidity

• Neither heat, nor acidity

• both heat and acidity

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HSE-2

Which type of chemical reaction involves building larger molecules from smaller subunits?

• Decomposition

• Synthesis

• Exchange

• Reversible

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HSE-2

Which level of protein structure is determined by the sequence of amino acids?

• Primary

• Secondary

• Tertiary

• Quaternary

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HSE-2

What is the main function of carbohydrates in the body?

• Act as enzymes

• Serve as a primary energy source

• Provide structural support

• Store genetic information

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HSE-2

Which property of water allows it to dissolve salts and sugars effectively?

• Cohesion

• High heat capacity

• Polarity

• Low viscosity

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HSE-2

Which inorganic compound makes up the majority of the body's mass?

• Salts

• Water

• Oxygen

• Calcium phosphate

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HSE-2

In an exchange reaction,

• Atoms are combined to form a larger molecule

• A molecule is split into smaller parts

• Parts of molecules are swapped between reactants

• Energy is released as heat

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HSE-2

Proteins are made of:

• Monosaccharides

• Fatty acids

• Amino acids

• Nucleotides

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HSE-2

The role of an enzyme is to:

• Provide energy for a reaction

• Change the products of a reaction

• Lower the activation energy needed for a reaction

• Alter the pH of a reaction

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HSE-2

Electrolytes are important because they:

• Store genetic information

• Conduct electrical currents in the body

• Form peptide bonds in proteins

• Neutralize acids

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HSE-2