An analysis of a lipid shows that it is made up of two fatty acids and a phosphate group, each bonded to a glycerol molecule. The molecule has a hydrophobic end and a hydrophilic end. Based on this information, what conclusion can you draw regarding this lipid?
What will be an ideal response?
The lipid is a phospholipid and can form a bilayer in a cell.
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The major mechanism of evolution is
(a) species development. (b) predation. (c) fitness. (d) natural selection.
When Calvin injected 14C labeled CO2 into cultures of green algae, what led him to conclude that rubisco adds CO2 to ribulose bisphosphate in the Calvin cycle?
A. Radioactivity appeared last in ribulose bisphosphate. B. Radioactivity first appeared in glucose. C. Radioactivity first appeared in ribulose bisphosphate. D. Radioactivity appeared last in glucose. E. Radioactivity first appeared in 3-phosphoglycerate. F. Radioactivity appeared last in 3-phosphoglycerate
Refer to the accompanying figure. The function of the structure labeled as 6 is to:
a. secrete an alkaline fluid that neutralizes the acids of the vagina. b. produce a nutritive fluid for the sperm. c. provide a place for maturation and storage of sperm. d. secrete mucus that lubricates the penis. e. maintain sperm at a low body temperature
What is the main consideration in determining a trophic level?
A) feeding level B) production level C) community level D) energy loss level E) efficiency level