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

Which of the following best describes the primary structural difference between saturated and unsaturated fats?

Unsaturated fats have longer fatty acid chains than saturated fats.

Saturated fats are always liquid at room temperature, while unsaturated fats are always solid.

Saturated fats contain phosphate groups, whereas unsaturated fats do not.

Saturated fats have no double bonds between carbon atoms in their fatty acid chains, while unsaturated fats contain one or more double bonds.

Previous problemNext problem

Verified step by step guidance

Step 1: Begin by understanding the structural composition of fatty acids. Fatty acids are long hydrocarbon chains with a carboxyl group (-COOH) at one end. They can be classified as saturated or unsaturated based on the presence or absence of double bonds between carbon atoms in the chain.

Step 2: Define saturated fats. Saturated fats have no double bonds between the carbon atoms in their fatty acid chains. This means all carbon atoms are fully 'saturated' with hydrogen atoms, resulting in a straight chain structure.

Step 3: Define unsaturated fats. Unsaturated fats contain one or more double bonds between carbon atoms in their fatty acid chains. These double bonds introduce kinks or bends in the chain, affecting the physical properties of the fat.

Step 4: Compare the physical properties of saturated and unsaturated fats. Saturated fats tend to be solid at room temperature due to their straight chains, which allow tight packing. Unsaturated fats, with their kinked chains, are usually liquid at room temperature because they cannot pack as tightly.

Step 5: Conclude that the primary structural difference between saturated and unsaturated fats is the presence of double bonds in unsaturated fats, which are absent in saturated fats. This structural difference impacts their physical state and biological functions.