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TLS Online TPP Program

#Question id: 2597

How do the different types of actin-binding proteins relate to the ability of actin to form bundles and networks?

#Unit 2. Cellular Organization

  1. Proteins promoting bundle formation have one actin-binding site, whereas proteins promoting network formation have two actin-binding sites.

  2. Different types of actin bind different actin-binding proteins to form bundles or networks.

  3.  Proteins that promote bundle formation bind ADP-actin, whereas proteins that promote network formation bind ATP-actin.

  4. Proteins promoting bundle formation tend to be short and inflexible, whereas proteins that promote network formation tend to be longer and more flexible.

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TLS Online TPP Program

#Question id: 10473

#Unit 1. Molecules and their Interaction Relevant to Biology

Cleavage of beta-carotene by BCMO1 yields two molecules of :
TLS Online TPP Program

#Question id: 10474

#Unit 1. Molecules and their Interaction Relevant to Biology

Lipids differ from other large biological molecules in that they
TLS Online TPP Program

#Question id: 10475

#Unit 1. Molecules and their Interaction Relevant to Biology

During the formation of a blood plasma protein The aromatic ring of vitamin K undergoes:
TLS Online TPP Program

#Question id: 10476

#Unit 1. Molecules and their Interaction Relevant to Biology

Following statements are regarding to gangliosides.

A. They are ceramides with attached oligosaccharides that include at least one sialic acid residue.

B. They are ceramides with attached oligosaccharides that include at least one phasphatidic acid residue.

C. Sialic acid gives gangliosides the negative charge at pH 7 that distinguishes them from globosides.

D. Gangliosides are primarily components of cell-surface membranes and constitute a significant fraction (6%) of brain lipids.

Which of the following combination is correct?
TLS Online TPP Program

#Question id: 10477

#Unit 1. Molecules and their Interaction Relevant to Biology

The tendency of nonpolar molecules to self‐associate in water rather than to dissolve individually is called
TLS Online TPP Program

#Question id: 10478

#Unit 1. Molecules and their Interaction Relevant to Biology

Match the following amino acids with their structure?