Biochemistry and Metabolism Quiz

Carbohydrates and proteins provide approximately how many kilocalories per gram?

• 7

• 9

• 4

• 2

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Fats provide approximately how many kilocalories per gram?

• 7

• 7.3

• More than twice that of carbohydrates

• The same as proteins

Catabolic reactions are generally involved in:

• Storing energy

• Making larger molecules

• Breaking down molecules to release energy

• Forming phosphate bonds

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NGSS.HS-LS1-7

Anabolic reactions are generally involved in:

• Releasing energy

• Storing energy by making larger molecules

• Breaking down molecules

• Utilizing ATP as a leaving group

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ATP is structurally a:

• Dinucleotide

• Monosaccharide

• Nucleoside triphosphate

• Fatty acid derivative

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Phosphate groups added or removed from ATP can serve as:

• Enzyme inhibitors

• Structural components

• Activators for reactions

• Electron carriers

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Enzymes that obtain a phosphate from ATP and transfer it to a substrate are called:

• Phosphatases

• Kinases

• Dehydrogenases

• Polymerases

The energy released by breaking a phosphate bond in ATP through hydrolysis is approximately:

• 4 kilocalories per mole

• 7.3 kilocalories per mole

• 9 kilocalories per mole

• Dependent on the substrate

Activated group carriers like ATP play a role in the cell by:

• Storing genetic information

• Forming cell membranes

• Acting as excellent leaving groups

• Providing structural support

Co-actors are broadly divided into:

• Proteins and carbohydrates

• Lipids and nucleic acids

• Metal ions and co-enzymes

• Substrates and products