How can cells increase the fluidity of their plasma membrane?
A) a lower proportion of unsaturated fats in the fatty acid portion of phospholipids
B) move to colder temperatures
C) remove double bonds in the hydrocarbon backbone
D) integrating steroid-based lipids like cholesterol in membranes
E) shorter phospholipids in the plasma membrane
Answer: D
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In which of the following organelles would you expect to first find a protein destined to be secreted from a cell?
A) endosome B) Golgi apparatus C) lysosome D) secretory vesicle E) endoplasmic reticulum
triggers for binge-eating disorder
What will be an ideal response?
The binding site for an antigen is located in which region of an antibody?
1.Between the variable region of the light chain and the variable region of the heavy chain. 2.Between the variable region and the constant region of the light chain. 3.Between the variable region and the constant region of the heavy chain. 4.Between the constant region of the light chain and the constant region of the heavy chain.
The region(s) where a countercurrent mechanism
operates is (are) indicated by a. A. b. B. c. C. d. D. e. C and D.