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TLS Online TPP Program

#Question id: 27089

Choose which of the following statement regarding the interactions or bond is incorrect

#Unit 1. Molecules and their Interaction Relevant to Biology
  1. in α- helices, the C=O and N-H groups of every interior residue participate in H bonds. -helices, the C=O and N-H groups of every interior residue participate in H bonds.
  2. Hydrophobic Interactions or hydrophobic clustering  entropically drive Protein Folding
  3. It is energetically favorable for an ionized residue to be located in the hydrophobic core of the protein.
  4. In Van der Waals Interactions the attractive forces are due primarily to instantaneous dipole-induced dipole interactions that arise because of fluctuations in the electron charge distributions of adjacent nonbonded atoms.
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TLS Online TPP Program

#Question id: 11582

#Unit 7. System Physiology – Animal

Following a stressful stimulus, the fight-or-flight response will cause ________.
TLS Online TPP Program

#Question id: 11583

#Unit 7. System Physiology – Animal

Use the figure to answer the following question.


In an experiment, rats' ovaries were removed immediately after impregnation, and then the rats were divided into two groups. Treatments and results are summarized in the table. The results most likely occurred because progesterone exerts an effect on the ________.
TLS Online TPP Program

#Question id: 11584

#Unit 7. System Physiology – Animal

Use the bar graph to answer the following question.

People who suffer from chronic fatigue syndrome (CFS) experience ongoing, debilitating fatigue. In one study, cortisol levels in the saliva during the first hour after waking were measured and compared between CFS patients and people without CFS (controls). The data is summarized in the graph. What can you infer from the data?
TLS Online TPP Program

#Question id: 11585

#Unit 7. System Physiology – Animal

Osteoporosis is a condition in which the density of bones is decreased so much that the individual is at a higher risk of fractures. The more calcium in the bones, the better the bone density. Which of the following would produce the greatest increase in bone calcium levels?
TLS Online TPP Program

#Question id: 11586

#Unit 7. System Physiology – Animal

Predict the effects of a drug that increases adrenocorticotropic hormone (ACTH) synthesis.
TLS Online TPP Program

#Question id: 11587

#Unit 7. System Physiology – Animal

People experiencing chronic stress may be more likely to become sick because ________.