Chemical messengers in the cell that control the amounts of enzyme produced is/are
A. DNA.
B. gene regulator proteins.
C. inhibitors.
D. coenzymes.
B. gene regulator proteins.
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Part complete Synthesis of most ATP takes place in the
a. mitochondria. b. smooth ER. c. rough ER. d. golgi apparatus. e. ribosomes.
During osmosis, water will move _______ its own concentration gradient until equilibrium has been reached.
Fill in the blank(s) with the appropriate word(s).
Which of the following statements is TRUE of disinfectants?
A) They are effective in destroying endospores. B) They are used on living tissue. C) They are used for sterilization. D) They are used on inanimate surfaces. E) They are only effective for short periods of time (seconds to minutes).
The phylogenetic classification of bacteria is based on
A) cell morphology. B) Gram reaction. C) rRNA sequences. D) habitat. E) diseases.