Which aspect of phospholipids is most important to the formation of bilayers?
A) They are amphipathic.
B) Their size is large, relative to cholesterol.
C) Their size is small, relative to fats.
D) Their hydrocarbon tails can consist of fatty acids or isoprene subunits.
Answer: A
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Complex tissues are tissues consisting of ____
a. two or more cell types b. only one cell type c. only parenchyma cells d. only collenchyma cells
e. only sclerenchyma cellsAltricial young are relatively
A) independent at birth and require relatively little time for incubation and gestation. B) independent at birth and require a relatively long time for incubation and gestation. C) helpless at birth and require relatively little time for incubation and gestation. D) helpless at birth and require a relatively long time for incubation and gestation.
Phenylalanine is a(n) ____ and the starting point for a network of metabolic pathways
a. lactase precursor molecules b. carbohydrate by-products of respiration c. essential amino acid d. sub-types of hemoglobin e. phenylthiocarbamides
The sulfur biogeochemical cycle is a sedimentary cycle with essentially no gaseous cycle
Indicate whether the statement is true or false