Phospholipase is an enzyme that will cleave the phosphate head group off a phospholipid molecule. The plasma membrane is not, however, permeable to the enzyme
Imagine a cell containing different phospholipids. How could you use phospholipase to determine which phospholipids are in the monolayer facing the exterior of the cell, and which are in the monolayer facing the interior (assume you have a way to assay for the different types of phospholipids)?
What will be an ideal response?
Model Short Answer: Answers will vary
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Which process exchanges alleles between homologous chromosomes?
a. mitosis b. genetic recombination c. asexual reproduction d. independent assortment e. anaphase
The pyramid of energy illustrates
a. the first law of thermodynamics. b. the diminishing of usable energy as it is transferred through an ecosystem. c. that energy can be recycled. d. the biological magnification of materials in an ecosystem. e. the diminishing number of organisms at each trophic level.
Four of the five structures listed below are parts of
the same unit. Select the exception. a. distal tubule b. loop of Henle c. ureter d. proximal tubule e. Bowman’s capsule
Describe the general eukaryotic growth factor signal transduction pathway
What will be an ideal response?