How do buffers minimize change in the pH of biological systems?

A) By absorbing H+ ions when there is an excess
B) By donating H+ ions when there is a shortage
C) Both of these
D) Neither of these


C

Biology & Microbiology

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The end of the skeletal muscle that remains stationary during a movement is

a. the action. b. the origin. c. the insertion. d. none of the above.

Biology & Microbiology

The displacement loop (D-loop) may be a characteristic of

A) centromeres. B) telomeres. C) A-DNA. D) B-DNA. E) Z-DNA.

Biology & Microbiology

Making and breaking molecules in the body require the aid of ________ to help the reactions proceed.

A. blood B. enzymes C. water D. heat

Biology & Microbiology

The pH of human blood is approximately 7.4 and the body temperature is approximately 37 °C. Which of the following best describes a human pathogen?

A) neutrophiles & acidophiles B) acidohphiles & thermophiles C) neutrophiles & mesophiles D) thermophiles & mesophiles

Biology & Microbiology