Table of contents

1. Introduction to Biochemistry4h 34m
2. Water3h 23m
3. Amino Acids8h 10m
4. Protein Structure10h 4m
5. Protein Techniques14h 5m
6. Enzymes and Enzyme Kinetics13h 38m
7. Enzyme Inhibition and Regulation 8h 42m
8. Protein Function 9h 41m
9. Carbohydrates7h 49m
10. Lipids5h 49m
11. Biological Membranes and Transport 6h 37m
12. Biosignaling9h 45m
Review 1: Nucleic Acids, Lipids, & Membranes2h 47m
Review 2: Biosignaling, Glycolysis, Gluconeogenesis, & PP-Pathway3h 12m
Review 3: Pyruvate & Fatty Acid Oxidation, Citric Acid Cycle, & Glycogen Metabolism2h 26m
Review 4: Amino Acid Oxidation, Oxidative Phosphorylation, & Photophosphorylation1h 48m

1. Introduction to Biochemistry

Carbohydrates

Biochemistry

1. Introduction to Biochemistry

Carbohydrates

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Multiple Choice

Which macromolecule maintains a consistent ratio of 1 C : 2 H : 1 O in its monomeric units?

Lipids

Carbohydrates

Nucleic acids

Proteins

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Verified step by step guidance

Understand the question: The problem is asking which macromolecule has monomeric units with a consistent ratio of 1 Carbon (C) : 2 Hydrogen (H) : 1 Oxygen (O). This ratio is a key characteristic of certain macromolecules.

Review the macromolecules listed: Lipids, Carbohydrates, Nucleic acids, and Proteins. Each has distinct structural features and monomeric units.

Recall the structure of carbohydrates: Carbohydrates are composed of monomeric units called monosaccharides (e.g., glucose, fructose). These monosaccharides typically follow the formula \( C_nH_{2n}O_n \), which maintains the 1:2:1 ratio of C:H:O.

Compare with other macromolecules: Lipids do not maintain a consistent 1:2:1 ratio; they have a higher proportion of hydrogen and fewer oxygen atoms. Proteins are composed of amino acids, which include nitrogen and do not follow the 1:2:1 ratio. Nucleic acids consist of nucleotides, which include phosphate groups and nitrogenous bases, deviating from the 1:2:1 ratio.

Conclude that carbohydrates are the macromolecules with monomeric units maintaining the consistent 1:2:1 ratio of C:H:O, as seen in monosaccharides like glucose (\( C_6H_{12}O_6 \)).