Which macromolecule has the highest diversity of functions?
A. carbohydrates
B. proteins
C. nucleic acids
D. lipids
E. glycolipids
B. proteins
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The antigen-binding site of an antibody accommodates a small portion of the antigen called a(n)
A) lipopolysaccharide. B) epitope. C) peptide motif. D) pathogen associated molecular pattern (PAMP).
A new experimental pesticide is being tested by a large agricultural chemical company. An unfortunate side effect in plants treated with this new product is a decrease in ATP production in the chloroplasts
(Interestingly, production of ATP in the mitochondria is unaffected.) Given this observation, which of the following would you expect to be DIRECTLY affected by the new pesticide? A. the synthesis of triose phosphates from 3- phosphoglycerate B. the transport of electrons along the photosynthetic electron transport chain C. the carboxylation of RuBP by rubisco D. the oxidation of RuBP by rubisco
Which condition is associated with an extra copy of chromosome 21?
a. sickle-cell anemia b. Down syndrome c. ALS d. Epilepsy e. Schizophrenia
Plants share a most recent common ancestor with what group of protists?
A. green algae B. brown algae C. red algae D. dinoflagellates E. cyanobacteria