Show calculations and give explanations. The lipid portion of a typical bilayer membrane is about 3 nm thick.
(a) Calculate the number of residues in an alpha helix that will just span this distance. (Show your calculations.)
(b) The epidermal growth factor receptor has a single transmembrane helix. Find it in this partial sequence: ……

Which was most likely an effect on society that resulted from improvements in blood handling during world war i and world war ii?

Ascientist is investigating the effects of salinity on fish development. he places fertilized fish eggs in an aquarium that contains low salinity and observes their development. what factor would improve experimental design the most? place the fish eggs in the open ocean because that is the natural habitat include another aquarium that has normal salinity to compare to the low salinity aquarium include an aquarium that replaces salt with sugar to confirm that the effects are specific to salt grow algae with the fish eggs in order to provide adequate nutrients to the developing embryos

In cellular biology, what is the definition of the word specialized? te o a. carried across the cell membrane by a specific protein a o b. a structure within a eukaryotic cell that performs a specific function o c. adapted to a specific function or condition es essere beste ser bendere s b tele ee o d. containing unique dna ser eeseen les, e nde este ses see ste submit e