Calculate the percentage of histidine that has its imidazole side chain protonated at pH 7.3. The pKa values for histidine are pK1 = 1.8, pK2 (imidazole) = 6.0, and pK3 = 9.2.

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#Question id: 11341

#Unit 2. Cellular Organization

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

TLS Online TPP Program

#Question id: 3673

#Unit 3. Fundamental Processes

Which is a characteristic of E. coli DNA polymerases?

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#Question id: 19823

#Unit 12. Applied Biology

The elicitors are recognized by receptor-like molecules present in resistant plants. This recognition initiates several biochemical reactions such as

1. Phytoalexin biosynthesis

2. Cell wall reinforcement

3. Release of hydrolytic enzymes

4. Rapid cell death

Which of the following is/are correct?

TLS Online TPP Program

#Question id: 707

#Unit 1. Molecules and their Interaction Relevant to Biology

A repeating structural unit in a multimeric protein is known as a(n):

TLS Online TPP Program

#Question id: 12394

#Unit 6. System Physiology – Plant

 Which one of the following fungal phytotoxin, stimulates both rapid proton extrusion and transient growth in stem and coleoptile sections?