Exploring Cell Membrane Properties Through Detergent Insights

What are the two essential properties a cell membrane must have?

• Rigid and impermeable

• Thick and rigid

• Sturdy and flexible

• Soft and permeable

Who made the initial observation about detergents dissolving grease differently?

• Irving Langmuir

• Hans Meyer

• Charles Overton

• Agnes Pockels

What did Langmuir and Blodgett discover about the tiny slicks on water?

• They were composed of proteins

• They were made of metal

• They were a single layer of oil molecules

• They were a double layer of oil molecules

What are the two parts of an oil molecule as discovered by Langmuir and Blodgett?

• Water-loving and water-loathing

• Oil-loving and oil-loathing

• Water-absorbing and water-repelling

• Oil-absorbing and oil-repelling

What did Overton and Meyer demonstrate about cell membranes?

• They are made of proteins

• They are composed of lipids with water-loving and water-loathing parts

• They are a single layer of lipids

• They are impermeable

What term is used to describe substances with both water-loving and water-loathing parts?

• Nucleic acids

• Lipids

• Carbohydrates

• Proteins

What was the main goal of Gorter and Grendel's experiment?

• To discover the chemical composition of cell membranes

• To find out if cell membranes are made of proteins

• To determine if cell membranes are a monolayer or bilayer

• To measure the thickness of cell membranes

What analogy did Gorter and Grendel use to explain their experiment?

• A sandwich

• A soap film

• A metal sheet

• A fishnet stocking

What did Gorter and Grendel observe in their experiment?

• A two-to-one ratio

• A four-to-one ratio

• A three-to-one ratio

• A one-to-one ratio

What significant insight did Gorter and Grendel's experiment provide?

• The permeability of cell membranes

• The protein composition of cell membranes

• The bilayer structure of cell membranes

• The double-helix structure of DNA