Introduction to Lipids Quiz

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20 Questions

Which type of fatty acid is typically found in whole milk, egg yolks, and coconut oil?


What determines whether a fatty acid is classified as saturated, unsaturated, monounsaturated, polyunsaturated, or trans fatty?

The chemical bonds and structure

Which type of phospholipid is predominant in the cell membrane?


What are waxes primarily composed of which makes them insoluble in water?

Long-chain fatty acids

Which lipids are deeply involved in the myelin sheath surrounding most nerve fibers?


Which of the following is NOT a major category of lipids?


What type of compounds are lipids in terms of their solubility in water?

They are insoluble in water

What is the main characteristic of triglycerides?

They are made up of glycerol and 3 fatty acids connected by peptide bonds

What characteristic differentiates fats from oils?

Fats are solids at room temperature, while oils are liquids

What type of compounds are terpenes and steroids?

They are hydrocarbons

During which phase of the cell cycle does DNA replicate?

S phase

What is the main characteristic that differentiates diploid cells from haploid cells?

Number of chromosomes sets

In which stage of meiosis does the separation of homologous chromosomes occur?

Anaphase I

What is the key event of telophase in mitosis?

Formation of daughter cells

In which phase of the cell cycle does the cell actually divide and make daughter cells?

M phase

Which statement accurately describes the arrangement of membrane phospholipids?

The hydrophobic fatty acid tails are directed towards the polar, aqueous fluids of both the cytosol and the environment.

What is the functional role played by cholesterol in the cellular membrane?

Cholesterol augments the basic structure provided by phospholipids.

What type of motions can membrane proteins exhibit?

Lateral movement and rotation

What is the primary orientation of the fatty acid tails of membrane phospholipids?

Away from the polar environment

What characteristic differentiates the arrangement of membrane lipids from that of membrane proteins?

Lipids exhibit lateral movement, while proteins can flip between layers.

Test your knowledge about lipids, which are naturally occurring non-polar compounds with simple functional groups. Learn about their characteristics, functions, and major categories such as fats, oils, phospholipids, waxes, terpenes, steroids, and prostaglandins.

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