The complexity and variety of organic molecules is due to _____
A) the chemical versatility of carbon atoms
B) the variety of rare elements in organic molecules
C) the diverse bonding patterns of nitrogen
D) their interaction with water
E) their tremendously large sizes
Answer: A
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A. Genes encoding rRNA B. Genes encoding tRNA C. Genes for photosynthetic pathway enzymes D. Genes encoding nuclear proteins
In a phosphate group, a central phosphorus atom binds to which of the following?
a. four oxygen atoms b. five carbon atoms c. three oxygen atoms d. one hydrogen atom
Which molecules diffuse into the lymph
vessels during absorption in the small intestine?
a. simple sugars b. triglycerides c. amino acids d. nucleotides e. all of these
Which structure in Figure 35-3 is responsible for lateral transport of dissolved sugars in this woody
plant? a. 3 b. 4 c. 7 d. 8 e. 9