Which of these elements is a noble gas? A. hydrogen (H) B. barium (Ba) C. nitrogen (N) D. krypton (Kr) E. bromine (B

The first reaction in glycolysis is the phosphorylation of glucose: Pi + Glucose  Glucose-6-Phosphate This is a thermodynamically unfavorable process, with ΔG°' = + 14 kJ/mol. a.

The endosymbiosis hypothesis proposes that a. a small cell lived inside a larger cell to the benefit of both cells. b. two cells merged into one cell, improving the enzyme function of the new cell. c.

marco and andre are twins. Which of these characteristics are they most likely to share a. height b. hairstyle c. taste in music d. enjoyment in books

Which common sexually transmitted disease is caused by the bacterium chlamydia trachomatis? a. chlamydia b. pruritus vulvae c. trichomoniasis d. gonorrhe?

What is the combination of an electrical gradient and a concentration gradient called? potential gradient electrical potential concentration potential electrochemical gradient

In humans, chemical digestion is accomplished by enzyme action that begins in the mouth and ends in the a. esophagus b. stomach c. small intestine d. gallbladder

Which of the following best describes computer modeling in biology?

If an atom has six valence electrons how many does it need to obtain a full outer shell

The two amino acids animated above are joined together by a?

What is the atomic number of an atom that has 6 protons, 6 neutrons, and 6 electrons?