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

Previous problemNext problem

Struggling with Biochemistry?

Join thousands of students who trust us to help them ace their exams!Watch the first video

Multiple Choice

The class of lipids that is made up of molecules with four carbon rings fused together is the:

Phospholipids

Triglycerides

Steroids

Waxes

Previous problemNext problem

Verified step by step guidance

Step 1: Begin by understanding the structural characteristics of the lipid classes mentioned in the problem. Lipids are a diverse group of molecules, and their classification is based on their structure and function.

Step 2: Recall that phospholipids are composed of a glycerol backbone, two fatty acid chains, and a phosphate group. They are primarily involved in forming cell membranes and do not have a fused ring structure.

Step 3: Triglycerides consist of a glycerol molecule bonded to three fatty acid chains. These are storage lipids and do not contain fused carbon rings.

Step 4: Steroids are a class of lipids characterized by their structure of four fused carbon rings. This unique structure is key to their function as signaling molecules (e.g., hormones like testosterone and estrogen) and structural components (e.g., cholesterol).

Step 5: Waxes are long-chain fatty acids esterified to long-chain alcohols. They are used for waterproofing and protection but do not have a fused ring structure. Based on this analysis, the correct answer is steroids.