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 of the following examples correctly represents simple sugars (monosaccharides) interacting to form large, organic molecules (polysaccharides)?

Glucose molecules joining via glycosidic bonds to form starch

Amino acids linking together to form a polypeptide

Fatty acids combining with glycerol to form triglycerides

Nucleotides joining to form a DNA strand

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Verified step by step guidance

Step 1: Begin by understanding the key concept of monosaccharides and polysaccharides. Monosaccharides are simple sugars, such as glucose, that serve as building blocks for larger carbohydrate molecules. Polysaccharides are formed when multiple monosaccharides are linked together via glycosidic bonds.

Step 2: Analyze the first example provided: 'Glucose molecules joining via glycosidic bonds to form starch.' This correctly represents the interaction of simple sugars (monosaccharides) forming a polysaccharide. Starch is a polysaccharide composed of glucose units linked by glycosidic bonds.

Step 3: Evaluate the second example: 'Amino acids linking together to form a polypeptide.' This describes the formation of proteins, not polysaccharides. Amino acids are the building blocks of proteins, and they link via peptide bonds, not glycosidic bonds.

Step 4: Assess the third example: 'Fatty acids combining with glycerol to form triglycerides.' This describes the formation of lipids, not polysaccharides. Fatty acids and glycerol interact via ester bonds to form triglycerides, which are fats, not carbohydrates.

Step 5: Examine the fourth example: 'Nucleotides joining to form a DNA strand.' This describes the formation of nucleic acids, not polysaccharides. Nucleotides are the building blocks of DNA and RNA, and they link via phosphodiester bonds.