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

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

Unsaturated fats have more hydrogen atoms attached to their carbon chains than saturated fats.

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

Saturated fats have no double bonds between carbon atoms, while unsaturated fats contain one or more double bonds.

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Verified step by step guidance

Step 1: Begin by understanding the structural composition of fats. Fats are composed of long hydrocarbon chains attached to a glycerol backbone. These hydrocarbon chains can vary in their saturation level, which is key to distinguishing saturated and unsaturated fats.

Step 2: Define saturated fats. Saturated fats are hydrocarbon chains where all carbon atoms are fully 'saturated' with hydrogen atoms. This means there are no double bonds between the carbon atoms in the chain.

Step 3: Define unsaturated fats. Unsaturated fats have one or more double bonds between carbon atoms in their hydrocarbon chains. These double bonds reduce the number of hydrogen atoms attached to the carbon chain.

Step 4: Compare the structural difference. The primary structural difference is that saturated fats lack double bonds between carbon atoms, while unsaturated fats contain one or more double bonds. This difference affects their physical properties, such as melting point and state at room temperature.

Step 5: Eliminate incorrect options. Saturated fats do not contain phosphate groups, and unsaturated fats do not have more hydrogen atoms than saturated fats. Additionally, the physical state at room temperature is influenced by the degree of saturation but is not an absolute rule. The correct answer is based on the presence or absence of double bonds.