Freezing chicken does not kill Salmonella.
Answer the following statement true (T) or false (F)
True
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The regulatory site in an allosteric enzyme is found within the catalytic site.
Answer the following statement true (T) or false (F)
The primary role of oxygen in cellular respiration is to _____
A) yield energy in the form of ATP as it is passed down the respiratory chain B) act as an acceptor for electrons and hydrogen, forming water C) combine with carbon, forming CO2 D) combine with lactate, forming pyruvate E) catalyze the reactions of glycolysis
Newborn screening using mass spectrometry identifies certain single-gene disorders by detecting
A) the causative mutation. B) the wild type gene sequence. C) an unusual metabolite or metabolic imbalance. D) abnormal proteins in urine.
Which of the following statements is an example of active transport?
1.Dye molecules diffusing after being dropped into a beaker of water. 2.Phospholipids drifting sideways in the plasma membrane. 3.Glucose binding to a transport protein to cross the membrane with the concentration gradient. 4.Calcium pumps in muscle cells transporting calcium against the concentration gradient.