When placed in an aqueous solution, amphipathic molecules will orient themselves with
A. hydrophobic hydrocarbon chains facing the water and hydrophilic head groups in the middle.
B. hydrophilic hydrocarbon chains facing the water and hydrophobic head groups in the middle.
C. hydrophilic hydrocarbon chains in the middle and hydrophobic head groups facing the water.
D. hydrophobic hydrocarbon chains in the middle and hydrophilic head groups facing the water.
D. hydrophobic hydrocarbon chains in the middle and hydrophilic head groups facing the water.
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A pure form of matter that cannot be broken down to simpler forms.
A) Polarity B) Compound C) Denaturation D) Monosaccharides E) Hydrogen bonds F) Element G) Triglycerides H) Amino acids I) Tertiary structure J) Active site
Which of the following nutrient types will not enter capillaries immediately after crossing the small intestine epithelium (i.e., they take a different path)?
A. carbohydrates B. lipids C. protein D. nucleic acids E. vitamin D
Plant cells that give rise to two cells, one of which is free to differentiate into various kinds of cells that contribute to the plant body, are called
A. endodermal cells. B. primary cells. C. lateral cells. D. parenchyma cells. E. meristematic cells.
Which hormone increases muscle mass?
a. progesterone b. estrogen c. luteinizing hormone d. testosterone e. myostatin