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Updated Mar 22, 2026

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Understanding Lipids: A Mindmap Guide

Amala Seth

@amala_seth

Lipids are essential biological molecules made up of carbon, hydrogen,... Show more

# Structure
contain C, H and O
atoms.
insoluble in water, can
dissolve in eg. alcohol.
solid lipid = fat
→liquid lipid = oil Cat rit.p)
incl

Lipid Structure and Functions

Lipids come in two main forms depending on temperature - solid fats and liquid oils at room temperature. They're incredibly versatile molecules that include fatty acids, triglycerides, and cholesterol.

Your body relies on lipids for multiple essential functions. They serve as a major energy source through respiration to produce ATP, and they're stored in adipose cells for long-term energy reserves. Beyond energy, lipids form the structure of cell membranes and provide both thermal and electrical insulation.

Saturated lipids have no double bonds between carbon atoms and tend to be solid fats. In contrast, unsaturated lipids contain one or more double bonds $mono-unsaturated has one, poly-unsaturated has multiple$ . These double bonds create kinks in the molecular chain, making the lipid more fluid.

Triglycerides form through condensation reactions between glycerol and fatty acids, creating ester bonds. When your body needs to break these down, enzymes like lipase catalyse hydrolysis reactions, particularly in the small intestine.

Key Insight: The presence or absence of double bonds in lipids determines whether they're solid or liquid at room temperature - this is why butter (saturated) is solid while olive oil (unsaturated) flows freely.

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Updated Mar 22, 2026

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1 page

Understanding Lipids: A Mindmap Guide

Amala Seth

@amala_seth

Lipids are essential biological molecules made up of carbon, hydrogen, and oxygen atoms that play crucial roles in your body. Unlike carbohydrates, they're not water-soluble but can dissolve in substances like alcohol, making them perfect for tasks like energy storage... Show more

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Lipid Structure and Functions

Key Insight: The presence or absence of double bonds in lipids determines whether they're solid or liquid at room temperature - this is why butter (saturated) is solid while olive oil (unsaturated) flows freely.