An atom can be changed into an ion by adding or removing:

A) a neutron.
B) a proton.
C) an electron.
D) either a neutron or a proton.
E) either a proton or an electron.


C) an electron.

Biology & Microbiology

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For which of the following processes are enzymes not required?

A. Replication B. Translation C. Maturation D. Self-assembly

Biology & Microbiology

What occurs at the cellular level if someone inherits Huntington's disease? a. A protein is altered in shape and function

b. A lipid is altered in shape and function. c. The nuclear envelope is altered in shape and function. d. A nucleic acid is altered in shape and function. e. The cell membrane of muscle cells is altered in shape and function.

Biology & Microbiology

Oxygen released by _____ accumulated in the atmosphere and produced the ozone layer

a. archaeans b. aerobic bacteria c. cyanobacteria d. early eukaryotes

Biology & Microbiology

A number of ____________________ cover the rough ER

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

Biology & Microbiology