Refer to Figure 40-5. The molecules required to bind at the sites labeled 1 and 2 for a cross bridge to
form are:a.
Ca2+ and myosin.
b. ADP and myosin.
c. myosin and troponin.
d. ATP and Ca2+.
e. tropomyosin and O2.
A
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The small region of an inactivated X chromosome that is not inactivated contains ____________________ homologous to those on the Y chromosome
Fill in the blank(s) with correct word
The movement of sucrose and H+ into the cell by the same membrane protein reflects the actions of what type of transporter?
A. symporter B. mechanosensitive channel C. voltage-gated channel D. antiporter E. uniporter
Gonadotropin-releasing hormone is involved in the regulation of both the testes and the ovaries.
Answer the following statement true (T) or false (F)
What is the chemical basis for the cyclization of sugars in solution?
a. interaction of hydroxyl groups with each other b. formation of peptide bonds between carbon atoms and nitrogen atoms in modified sugars c. reaction between the aldehyde group of one sugar molecule and the aldehyde group of another sugar molecule d. formation of hydrogen bonds between sugar and water molecules e. reaction of the carbonyl group with an alcohol group