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TLS Online TPP Program

#Question id: 346

The partial negative charge in a molecule of water occurs because ________.

#Unit 1. Molecules and their Interaction Relevant to Biology

  1. the oxygen atom donates an electron to each of the hydrogen atoms

  2. the electrons shared between the oxygen and hydrogen atoms spend more time around the oxygen atom nucleus than around the hydrogen atom nucleus

  3. the oxygen atom has two pairs of electrons in its valence shell that are not neutralized by hydrogen atoms

  4. one of the hydrogen atoms donates an electron to the oxygen atom

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TLS Online TPP Program

#Question id: 3030

#Unit 2. Cellular Organization

Which of the following features of prokaryotic biology involves metabolic cooperation among cells?
TLS Online TPP Program

#Question id: 11942

#Unit 7. System Physiology – Animal

A patient’s urine is collected for 2 hr, and the total volume is 600 ml during this time. Her urine osmolarity is 150 mOsm/L, and her plasma osmolarity is 300 mOsm/L. What is her “free water clearance”?
TLS Online TPP Program

#Question id: 2637

#Unit 2. Cellular Organization

Which of these operons is anabolic?
TLS Online TPP Program

#Question id: 11985

#Unit 10. Ecological Principles

In  the  territorial  behavior  of  the  stickleback  fish,  the  red  belly  of  one  male  elicits  attack  from  another  male  by functioning as
TLS Online TPP Program

#Question id: 10356

#Unit 6. System Physiology – Plant

Why the GS  and GOGAT is activated in light and while the AS is inhibited?