Which digestive structure is a J shaped muscular sac that mixes food with gastric juices?
a. Esophagus
b. Pharynx
c. Large intestine
d. Small intestine
e. Stomach
e
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Four small bags are filled with a 10% starch solution. The membrane of each bag contains microscopic pores large enough to let smaller water molecules cross but too small for the larger starch molecules to cross.Each bag is placed in a separate beaker as follows:Bag 1 is placed in distilled water containing no starch (0% starch).Bag 2 is placed in a solution of distilled water and 5% starch.Bag 3 is placed in a solution of distilled water and 10% starch.Bag 4 is placed in a solution of distilled water and 50% starch.The bags are weighed initially and at regular intervals for a specific period of time. Some bags saw a change in weight, and some did not. Answer the following questions based on the expected outcomes of this experiment.a. Which bag should weigh approximately the same at the
end of the experiment as it did at the beginning of the experiment?b. Which bag is expected to be the heaviest at the end of the experiment?c. Which bag is expected to be the lightest at the end of the experiment? What will be an ideal response?
Which regulatory mechanism is important in keeping glycolysis and the citric acid cycle in relative balance to each other?
A. Citrate inhibits phosphofructokinase 1. B. ADP up-regulates phosphofructokinase 1. C. ATP inhibits phosphofructokinase 1. D. AMP inhibits phosphofructokinase 1.
An example of a ?-hemolytic gram-positive organism is:
a. Staphylococcus aureus. b. S. pneumoniae. c. Escherichia coli. d. Enterococcus.
Latency is a dormant state of an infectious agent.
Answer the following statement true (T) or false (F)