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

Lipids

Biochemistry

1. Introduction to Biochemistry

Lipids

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Multiple Choice

Which of the following is a type of lipid?

Hemoglobin

Cellulose

Triglyceride

Glycogen

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Verified step by step guidance

Step 1: Understand the question by identifying the key concept being tested. The question is asking which of the given options is a type of lipid. Lipids are a class of biomolecules that include fats, oils, and certain types of molecules like triglycerides, phospholipids, and sterols.

Step 2: Analyze each option provided in the question. Hemoglobin is a protein responsible for oxygen transport in the blood. Cellulose is a polysaccharide found in plant cell walls. Glycogen is a polysaccharide used for energy storage in animals. Triglyceride is a type of lipid composed of glycerol and three fatty acid chains.

Step 3: Recall the definition and characteristics of lipids. Lipids are hydrophobic or amphipathic molecules that play roles in energy storage, membrane structure, and signaling. Triglycerides specifically are a major form of energy storage in animals.

Step 4: Eliminate the incorrect options based on their classifications. Hemoglobin is a protein, cellulose and glycogen are carbohydrates, leaving triglyceride as the correct answer.

Step 5: Confirm the answer by matching the characteristics of triglycerides to the definition of lipids. Triglycerides fit the criteria of lipids because they are composed of fatty acids and glycerol, and they are hydrophobic molecules used for energy storage.