Glucose is a six-carbon sugar that diffuses slowly through artificial phospholipid bilayers. The cells lining the small intestine, however, rapidly move large quantities of glucose from the glucose-rich food into their glucose-poor cytoplasm
Given this information, which transport mechanism is most probably functioning in the intestinal cells?
A) Simple diffusion
B) Osmosis
C) Exocytosis
D) Aquaporin transport
E) Facilitated diffusion
E
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Telomerase is the name of the enzyme that replaces lost telomeres
A. true B. false
When you use a field guide to identify a species by its appearance, you are applying the _____
A. morphospecies concept B. biological species concept C. ecological species concept D. evolutionary species concept
Which is an organic molecule?
a. carbon dioxide (CO2) b. water (H2O) c. methane (CH4) d. hydrochloric acid (HCl) e. oxygen (O2)
What is meant by saying one strand of DNA is the template for the synthesis of another strand?
A) A strand of DNA is taken apart to supply nucleotides for synthesis of a new strand. B) The new strand will have exactly the same base sequence as the template strand. C) The template specifies the order of bases of the strand being made. D) One strand of DNA acts as a wedge to separate other strands before replication. E) A strand of DNA is the enzyme that connects nucleotides in replication.