The amount-of-substance concentration may be referred to as the concentration for short.

The main difference between interstitial fluid and plasma is A: The protein concentration is higher in plasma B: The Na+ concentration is higher in plasma C: The protein concentration is higher in interstitial fluid D: The Na+ concentration is higher in interstitial fluid E: The organic acid concentration is higher in plasma

Km is defined as A: Substrate concentration at maximum velocity B: Substrate concentration at half the maximum velocity C: Enzyme concentration D: Optimum temperature

The main difference between interstitial fluid and plasma is A: The protein concentration is higher in plasma B: The Na+ concentration is higher in plasma C: The protein concentration is higher in interstitial fluid D: The Na+ concentration is higher in interstitial fluid

A buffer solution must contain a relatively large concentration of acid and a similar concentration of base.

The concentration of potassium ions in the cell ( ) is the concentration outside the cell, while the concentration of sodium ions in the cell ( ) is the concentration outside the cell. A: Greater than B: Bigger than smaller than C: Less than D: Less than, greater than

Measuring a colored solution by using of Beer's law, when the concentration is c, the transmittance is T. If the concentration is changed to c/3 and other conditions remain unchanged, then T is ______ .when the concentration is 2c, T is ______

Which of the following options is correct? (Note: ICF = intracellular fluid; ECF = extracellular fluid) A: Sodium concentration: ICF > ECF B: Bicarbonate concentration: ICF > ECF C: Phosphate and organic anion concentration: ICF > ECF D: Chloride concentration: ICF > ECF

The most relevant measurement in single dose bioavailability studies is A: maximum drug serum concentration B: time to maximum serum concentration C: area under serum concentration –time curve (AUC) D: time for peak drug concentration to fall to half E: time to appearance of drug in circulation (lag time)

Chemostatic<br/>culture can control to achieve the purpose of continuous culture( ) A: Cell<br/>density B: Carbon<br/>source concentration C: Nitrogen<br/>source concentration D: Growth<br/>factor concentration