Nitrogen is used in plant cells to produce which of the following?

A. sugars
B. proteins and nucleic acids
C. proteins
D. sugars and nucleic acids
E. nucleic acids


B. proteins and nucleic acids

Biology & Microbiology

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Birds that have long narrow bills used for eating bivalves and other invertebrates are:

a. gulls. b. pelicans. c. shore birds. d. tubenoses. e. skuas and jaegers.

Biology & Microbiology

In which of the following organelles would you expect to first find a protein destined to be secreted from a cell?

A) endosome B) Golgi apparatus C) lysosome D) secretory vesicle E) endoplasmic reticulum

Biology & Microbiology

After infecting the cell, HBV's gapped DNA is released into the nucleus where host ________ enzymes fill the gap and seal the nick, yielding a covalently closed, circular DNA.

Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology

In all vertebrates, the brain consists of the

A) cerebrum, forebrain, and hindbrain. B) cerebrum, midbrain, and hindbrain. C) forebrain, midbrain, and hindbrain. D) cerebrum, cerebellum, and hindbrain.

Biology & Microbiology