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TLS Online TPP Program

#Question id: 11341

Why can’t triacylglycerols be significant components of lipid bilayers?

#Unit 2. Cellular Organization

  1. Triacylglycerols lack nonpolar head groups, so they do not orient themselves in a bilayer with their acyl chains inward and their glycerol moiety toward the surface.

  2. Triacylglycerols lack polar head groups, so they orient themselves in a bilayer with their acyl chains inward and their glycerol moiety toward the surface.

  3. Triacylglycerols lack polar head groups, so they do not orient themselves in a bilayer with their acyl chains inward and their glycerol moiety toward the surface.

  4. Triacylglycerols lack polar head groups, so they do not orient themselves in a bilayer with their glycerol moiety inward and their acyl chains toward the surface
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TLS Online TPP Program

#Question id: 713

#Unit 1. Molecules and their Interaction Relevant to Biology

Which of the following polypeptides is most likely to form an α helix?
TLS Online TPP Program

#Question id: 8941

#Unit 9. Diversity of Life Forms

You are trying to identify an organism. It is an animal, but it does not have nerve or muscle tissue. It is neither diploblastic nor triploblastic. It is probably a
TLS Online TPP Program

#Question id: 3498

#Unit 11. Evolution and Behavior

Assuming 5 offspring of each female, A Female lion with a well-nourished cub gains inclusive fitness by nursing a starving cub of a full sister by 5% loss to herself. What would be value of be benefit in percent (all offspring of recipient female die in case of no nursing)
TLS Online TPP Program

#Question id: 24165

#Unit 1. Molecules and their Interaction Relevant to Biology

When winding an old clock, it is important not to overwind it. Overwinding occurs when the mainspring is almost fully wound, but the operator continues to turn the winding key. This causes the main spring to coil too tightly, and might even break it.

This paragraph best supports the statement that
TLS Online TPP Program

#Question id: 12674

#Unit 10. Ecological Principles

You  have  a  friend  who  is  wary  of  environmentalists? claims  that  global  warming  could  lead  to  major  biological change on Earth. Which of the following statements can you truthfully make in response to your friend's suspicions?