Podcast
Questions and Answers
Which of the following best describes the primary function of DNA within a cell?
Which of the following best describes the primary function of DNA within a cell?
- Synthesizing proteins.
- Catalyzing metabolic reactions.
- Facilitating cellular energy transfer.
- Storing genetic information. (correct)
Which of the following nitrogenous bases is unique to RNA, and not found in DNA?
Which of the following nitrogenous bases is unique to RNA, and not found in DNA?
- Cytosine
- Thymine
- Adenine
- Uracil (correct)
If a scientist isolates a nucleotide containing guanine, a phosphate group, and deoxyribose, which molecule did this nucleotide come from?
If a scientist isolates a nucleotide containing guanine, a phosphate group, and deoxyribose, which molecule did this nucleotide come from?
- ATP
- RNA
- DNA (correct)
- Protein
Which of the following statements accurately compares purines and pyrimidines?
Which of the following statements accurately compares purines and pyrimidines?
During intense exercise, muscle cells require a significant amount of energy. Which of the following molecules is most directly responsible for providing this energy?
During intense exercise, muscle cells require a significant amount of energy. Which of the following molecules is most directly responsible for providing this energy?
Flashcards
Carbohydrates
Carbohydrates
Organic compounds including sugars, starches, and fibers, providing energy.
Proteins
Proteins
Organic compounds composed of amino acids, essential for building and repairing tissues.
Lipids
Lipids
Organic compounds including fats and oils, providing energy and insulation.
Nucleic Acids
Nucleic Acids
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DNA
DNA
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Study Notes
- Organic compounds include carbohydrates, proteins, lipids (fats and oils), and nucleic acids.
- Nucleic acids consist of a pentose sugar, a phosphate group, and a nitrogen base.
Purines
- Adenine (A) and guanine (G) are purines.
Pyrimidines
- Cytosine (C), thymine (T), and uracil (U) are pyrimidines.
DNA
- DNA stands for deoxyribonucleic acid.
- DNA stores genetic information.
RNA
- RNA stands for Ribonucleic acid.
ATP
- ATP is the cell's energy source.
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Description
Overview of organic compounds including carbohydrates, proteins, and lipids. Nucleic acids consist of a pentose sugar, a phosphate group, and a nitrogen base. Discussion of purines, pyrimidines, DNA, RNA, and ATP.
