Question #293296
Which of the following statements about biological membranes are true? (select one or more)
a. they are made up mainly of lipids and carbohydrates
b. contain receptors for specific ligands (stimuli)
c. they perform energy transformations in photosynthesis and oxidative phosphorylation
d. are able to generate signals
e. represent a boundary between the cell and the environment that exhibits selective permeability
Expert's answer
B, c, d,e
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