Water is an excellent solvent (i.e., it can dissolve many substances), because
It has polar-covalent bonds.
(T/F) Water can absorb a large amount of heat without drastically changing its temperature.
TRUE
Is DNA inorganic (I) or organic (O)?
organic
The chemical called the “energy currency” of living systems is ___.
ATP
Which is a component of DNA, but NOT of RNA?
thymine
Which of the following is the most abundant positively charged ion (cation) in the intracellular fluid, and is required for generating nerve and muscle impulses?
K+
(T/F) Enzymes are considered organic catalysts.
TRUE
Which of the following kinds of bonds is formed as a result of the loss and gain of electrons?
ionic
Combining atoms of two or more different elements results in a(n)
compound.
A quantity of matter composed of atoms that are all the same kind is called ___.
