Answer the following statements true (T) or false (F)
1. When a buffer system buffers a basic solution, the weak acid donates a hydrogen ion to convert the hydroxide ion to water.
2. A fixed acid does not break down to form a gas.
3. Lactic acid is an example of a fixed acid.
4. Lactic acid is the most abundant acid in body fluids.
5. Carbonic acid is the most abundant acid in body fluids.
1. TRUE
2. TRUE
3. TRUE
4. FALSE
5. TRUE
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The ________ reproductive system produces oocytes.
Fill in the blank(s) with the appropriate word(s).
White blood cells engulf bacteria by means of ________.
A. active transport B. cotransport C. phagocytosis D. pinocytosis E. receptor-mediated endocytosis
Which of the following conditions must be met if diffusion across a membrane is to occur?
A) A concentration gradient must be present, and the membrane can't be permeable to the substance being transported. B) A concentration gradient must be present, and the membrane must be permeable to the substance that is to be transported. C) The membrane must be permeable to the substance that is to be transported. D) A concentration gradient must be present.
The principal functions of the ________ system include the absorption of oxygen, discharge of carbon dioxide, maintaining the acid-base balance, and speech.
Fill in the blank(s) with the appropriate word(s).