If you shift cells from low temperature to high temperature, what lipid would you expect to increase in percentage within the membrane? saturated fatty acids monounsaturated fatty acids O polyunsaturated fatty acids

Provide two examples of lipids for each section: Impermeable     Moderately permeable     Permeable

Cholesterol is a membrane component that can modulate membrane fluidity. True O False

Which noncovalent interactions (discussed in Section 8.2) are responsible for the cohesion of lipid molecules? Is the overall strength of these forces weak or strong? Why are lipids incompatible with water?

Which is a characteristic of the phospholipids in cell membranes? Select one: O Phospholipids in a membrane interact with other membrane molecules, in part, through covalent forces O Phospholipids in a membrane interact with other membrane molecules through non-covalent forces O Increasing the proportion of protein in a membrane increases the amount of membrane symmetry O Increasing the proportion of saturated fatty acids in a membrane increases membrane fluidity O A phospholipid molecule glows in the dark after exposure to visible light

Sort the descriptions into properties that describe either saturated phospholipids or unsaturated phospholipids. Saturated phospholipids have straight fatty acid tails have no double bonds in the fatty acid carbon chains fatty acid tails pack tightly together produce a fairly inflexible membrane at low temperatures Saturated and unsaturated phospholipids maintain some space between adjacent phospholipids are built upon a glycerol backbone Answer Bank Unsaturated phospholipids have bent fatty acid tails contain one or more double bonds within the fatty acid tails allow the membrane to remain fluid and flexible at low temperatures

Which of the following lipids would you expect to find as a structural component in a membrane, and with a net charge of zero at pH 7.3? phosphatidylserine. triacylglycerol. phosphatidylcholine. phosphatidic acid none of the above options.

Which of the following is a true statement?     Sphingolipids contain 2 hydrophobic, acyl chains     Phospholipids contain 3 hydrophobic acyl chains     Sphingolipids are completely no-polar, hydrophobic molecules     The different types of phospholipids do not have different physical properties when in the membrane

Explain how the lipid bilayer modulate the activity of proteins. Give 2 examples.

What is the wavelength of a 6.76 x 1012 /s wave? Sorry im just really stuck on this question, Please dont leave any minor detail in the question, And also may u step by step this equation.