#Question id: 331
#Unit 1. Molecules and their Interaction Relevant to Biology
A positive and a negative charge are initially 4 cm apart. When they are moved closer together so that they are now only 1 cm apart, the force between them will be
#Question id: 332
#Unit 1. Molecules and their Interaction Relevant to Biology
The electronegativity difference between N and F is greater than that between N and H yet the dipole moment of NH3 (1.5 D) is larger than that of NF3 (0.2 D). This is because_________
#Question id: 333
#Unit 1. Molecules and their Interaction Relevant to Biology
Which of the following feature of RNA adds to its propensity to form double-helical structure?
#Question id: 334
#Unit 1. Molecules and their Interaction Relevant to Biology
Which of the following statements about hydrogen bonding is not true?
#Question id: 335
#Unit 1. Molecules and their Interaction Relevant to Biology
Suppose the major solutes in intact lysosomes are KCl (~0.1 M) and NaCl (~0.03 M). When isolating lysosomes, what concentration of sucrose is required in the extracting solution at room temperature (25 °C) to prevent swelling and lysis?
#Question id: 336
#Unit 1. Molecules and their Interaction Relevant to Biology
Which would you expect to be most soluble in water?