G proteins in the plasma membrane of certain cells may become activated in response to the binding of water-soluble hormones, whereas protein phosphatases are continuously active in these cells
Indicate whether the statement is true or false
T
Anatomy & Physiology
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Proteolytic enzymes secreted from the pancreas are activated
A. once they reach the pancreatic duct. B. within the lumen of the small intestine. C. in secretory vesicles within pancreatic secretory cells. D. once they reach the large intestine.
Anatomy & Physiology
Which of the following energy storages source is most commonly used during the first 10 seconds of exercise?
A) ATP B) creatine phosphate C) lactic acid D) none of the above
Anatomy & Physiology
Which of the following are known carcinogens?
A. Excessive radiation B. Certain chemicals C. Viruses D. All apply.
Anatomy & Physiology
Which gland is called the "emergency gland" and helps the body adjust to stress?
A) thyroid B) adrenal (suprarenal) C) pituitary D) pancreas E) thymus
Anatomy & Physiology