1.5 Nucleic Acids

Draw a simple labelled diagram to show the structure of a nucleotide.

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What are the components of ATP?

• Adenine, ribose, and three phosphate groups

• Adenine, glucose, and one phosphate group

• Ribose, fructose, and two phosphate groups

• Glucose, ribose, and three phosphate groups

What is the difference between an endergonic and an exergonic reaction?

• Endergonic reactions absorb energy, and exergonic reactions release energy

• Endergonic reactions release energy, and exergonic reactions absorb energy

• Both reactions release energy

• Both reactions absorb energy

How much energy is released from one mole of ATP when it is hydrolysed to ADP and Pi?

• 7.3 kcal/mol

• 30.5 kcal/mol

• 13.8 kcal/mol

• 50.2 kcal/mol

What does "universal energy currency" refer to in biological terms?

• ATP

• DNA

• RNA

• Glucose

List 3 advantages of using ATP to provide energy in cells.

• Provides energy quickly, is efficient, and is easily regulated

• Stores large amounts of energy, is reusable, and is non-toxic

• Is abundant, requires no digestion, and can be used directly by cells

• Is inexpensive, easy to store, and environmentally friendly

What is the sugar in DNA?

• Ribose

• Deoxyribose

• Glucose

• Fructose

Which bases are in the nucleotides of DNA?

• Adenine, Thymine, Cytosine, Guanine

• Adenine, Uracil, Cytosine, Guanine

• Adenine, Thymine, Guanine

• Adenine, Thymine, Cytosine

What is the sugar in RNA?

• Ribose

• Deoxyribose

• Glucose

• Fructose

What are the bases in RNA?

• Adenine, Thymine, Guanine, Cytosine

• Adenine, Uracil, Guanine, Cytosine

• Adenine, Uracil, Guanine, Thymine

• Adenine, Cytosine, Guanine, Uracil