Which of the following is not true of phospholipids?

A) Phospholipids are important in membrane structure.
B) Serine is a molecule that may be part of a phosphoglyceride.
C) Phosphatidic acid contains two fatty acids and a phosphate group.
D) Sphingolipids are the predominant phospholipid in membranes.
E) Phospholipids are amphipathic.


D) Sphingolipids are the predominant phospholipid in membranes.

Biology & Microbiology

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Even in the absence of transpiration, some water can move into the roots and partially up the xylem columns. This phenomenon is due to  

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The nervous system is capable of modifying its structure and function in a process known as:

a. hard-wiring. b. neural plasticity. c. reflex action. d. tolerance. e. ganglia.

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What dense storage granules in plant cells are thought to contribute to gravitropism?

A) starch B) glucose C) proteins D) chlorophyll

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