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Biochemistry Use each word in the list below only once to best complete the following phrases....
or each of the following sentences, select the best word or phrase from the list below to fill in the blanks ot all words or phrases will be used; each word or phrase should be used only once 38. (3) An extracellular signal molecule can act to change a cell's behavior by acting through cell that control intracellular signaling proteins. These intracellular proteins that bring surface signaling proteins ultimately change the activity of about cell responses. Intracellular signaling proteins can...
The smallest chemical units of matter are atoms b) molecules c) protons d) neutrons e) electrons . Which of the following would have the largest size? a) an atom b) a molecule c) a proton d) a neutron e) an electron 3. Isotopes of an element differ in the number of a) protons in the nucleus b) electrons in the nucleus © neutrons in the nucleus d) electron clouds e) energy levels they contain 4. VO The atomic number represents...