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TLS Online TPP Program

#Question id: 2113

Why are lipids and proteins free to move laterally in membranes?

#XL - S Microbiology

  1. The interior of the membrane is filled with liquid water.

  2. Lipids and proteins repulse each other in the membrane.

  3. Hydrophilic portions of the lipids are in the interior of the membrane.

  4. There are only weak hydrophobic interactions in the interior of the membrane.

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TLS Online TPP Program

#Question id: 5086

#XL - T Zoology

Cells move to new positions as an embryo establishes its three germ tissue layers during ________.
TLS Online TPP Program

#Question id: 5087

#XL - T Zoology

The outer-to-inner sequence of tissue layers in a post-gastrulation vertebrate embryo is ________.
TLS Online TPP Program

#Question id: 5088

#XL - T Zoology

 If gastrulation was blocked by an environmental toxin, then ________.
TLS Online TPP Program

#Question id: 5089

#XL - T Zoology

The archenteron of the developing sea urchin eventually develops into the ________.
TLS Online TPP Program

#Question id: 5090

#XL - T Zoology

Which of the following is a correct description of the fate of the germ layers?
TLS Online TPP Program

#Question id: 5091

#XL - T Zoology

In all vertebrate animals, development requires ________.