An uncatalyzed keto– enol tautomerization reaction occurs quite slowly as a result of the high free energy of its carbanion-like transition state called as

TLS Online TPP Program

#Question id: 27401

#Unit 1. Molecules and their Interaction Relevant to Biology

Which of the following is an example of archaebacterial membrane lipid

TLS Online TPP Program

#Question id: 27402

#Unit 1. Molecules and their Interaction Relevant to Biology

In which of the following lipid two phosphatidic acids share a single glycerol (R1 and R2 are fatty acyl groups).

TLS Online TPP Program

#Question id: 27403

#Unit 1. Molecules and their Interaction Relevant to Biology

Precursor for the sphingosine is

TLS Online TPP Program

#Question id: 27404

#Unit 1. Molecules and their Interaction Relevant to Biology

Which of the following statement is correct regarding the Structural Lipids in Membranes

1.It acts as a barrier to the passage of polar molecules and ions

2.Membrane lipids are amphipathic: one end of the molecule is hydrophobic, the other hydrophilic

3.Membrane bilayers are formed only by the hydrophobic interaction only 

4.Both hydrophobic and hydrophilic interactions are responsible for membrane bilayer formation

TLS Online TPP Program

#Question id: 27405

#Unit 1. Molecules and their Interaction Relevant to Biology

Some of the following structural features of lipids are given which of the following is incorrect 

TLS Online TPP Program

#Question id: 27406

#Unit 1. Molecules and their Interaction Relevant to Biology

Which of the following enzymes that catalyze the hydrolysis of stored triacylglycerols, releasing fatty acids for export to sites where they are required as fuel