Lipids: Structure, Function, and Importance
Explore the world of lipids with this Grade 9 science worksheet covering their structure, functions, and biological significance.
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Lipids: Structure, Function, and Importance
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Read each question carefully and answer to the best of your ability. Show all your work for calculations.
1. Which of the following is NOT a primary function of lipids in living organisms?
Long-term energy storage
Structural component of cell membranes
Genetic information storage
Insulation and protection
2. A triglyceride is composed of one glycerol molecule and how many fatty acid molecules?
One
Two
Three
Four
1. Lipids are a diverse group of organic compounds that are largely in water.
2. The main type of lipid found in cell membranes is the , which has a hydrophilic head and two hydrophobic tails.
3. Steroids are a type of lipid characterized by a carbon skeleton consisting of four fused .
1. Saturated fatty acids contain one or more double bonds between carbon atoms.
True
False
2. Lipids provide more energy per gram than carbohydrates.
True
False
1. Briefly explain the difference between saturated and unsaturated fatty acids.
Observe the diagram below, which illustrates a common lipid structure, and answer the question that follows.
2. Based on the provided image, what type of lipid is prominently featured within the chylomicron, and what is its primary role?