Of the following lipids, which is found in approximately equal amounts in both the outer and inner portions of the lipid bilayer?
A) cholesterol
B) glycolipid
C) phosphatidylserine
D) phophatidylethanolamine
E) phophatidylinositol
A) cholesterol
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Explain how the basic structure of a phospholipid bilayer is maintained in an aqueous solution, and identify a change you can make that would permanently disrupt the bilayer
What will be an ideal response?
Fungi
A. take in food by phagocytosis. B. generate ATP and reducing equivalents by photosynthesis. C. absorb nutrients from the environment. D. All of these choices are correct.
What is the importance of a cell being able to regulate gene expression?
What will be an ideal response?
In the diagram below, the gray unit represents _____. The figure shows a blue molecule arranged in the form of a double chain. The gray unit on this figure represents an oval structure which contains unwound and unpaired chains of this molecule. Before and after this unit, the molecule is wound in the form of a double helix. A green unit represents a part of the double helix before the gray unit.
a. RNA b. DNA c. transcription factors d. RNA polymerase e. the promoter