) All chemical reactions are theoretically reversible. Comment on this statement.
What will be an ideal response?
It is possible to reverse any reaction if the products are still present. Those that are only slightly exergonic are easily reversible. Some would require an enormous amount of energy to reverse. In the simple reaction Na + Cl ? NaCl the amount of energy it takes to reverse table salt to chlorine gas and sodium metal is enormous. The reversing of the covalently bonded sugar molecule once it is reduced to ATP molecules is even harder or next to impossible.
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Electromyography is a test in which a muscle or group of muscles are stimulated with an electrical impulse.
Answer the following statement true (T) or false (F)
Frank gets into a brawl at a sports event and receives a broken nose. After the nose heals, he starts to have sinus headaches and discomfort in the area of his maxillae. What is probably the cause of Frank's discomfort?
Which of the following substances would most easily pass through the plasma membrane of a cell?
Water-soluble hormones Water Ions Steroid hormones Large organic proteins
If a woman ovulates two oocytes and both are fertilized,
A. paternal twins result. B. identical twins result. C. fraternal twins result. D. conjoined twins result. E. monozygotic twinning occurs.