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TLS Online TPP Program

#Question id: 11122

Phylogenetic hypotheses (such as those represented by phylogenetic trees) are strongest when

#Unit 9. Diversity of Life Forms
  1. they are based on amino acid sequences from homologous proteins, as long as the genes that code for such proteins contain no introns.
  2. each clade is defined by a single derived character.
  3. they are supported by more than one kind of evidence, such as when fossil evidence corroborates molecular evidence.
  4. they are accepted by the foremost authorities in the field, especially if they have won Nobel Prizes.
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TLS Online TPP Program

#Question id: 24220

#Unit 1. Molecules and their Interaction Relevant to Biology

Glucagon stimulates cAMP from ATP. Cyclic AMP then activates cAMP-dependent protein kinase, phosphorylates PFK-2/FBPase-2. Phosphorylation of this protein enhances its FBPase-2 activity and inhibits its PFK-2 activity resulting
TLS Online TPP Program

#Question id: 24219

#Unit 1. Molecules and their Interaction Relevant to Biology

When Fructose 2,6-bisphosphate binds to its allosteric site on PFK-1 results
TLS Online TPP Program

#Question id: 24218

#Unit 1. Molecules and their Interaction Relevant to Biology

Phosphorylation of fructose 6-phosphate, catalysed by
TLS Online TPP Program

#Question id: 24217

#Unit 1. Molecules and their Interaction Relevant to Biology

Choose the correct statement of the following
a. In general, high acetyl-CoA or citrate are present, or when a high proportion of the cell’s adenylate is in the form of ATP, gluconeogenesis is favored.
b. When the level of AMP increases, it promotes glycolysis by stimulating PFK-1 by inhibiting FBPase-1
c. Phosphorylation of fructose 6-phosphate, catalysed by phosphofructokinase-2 (PFK-2)
d. Glucagon increases the cellular level of fructose 2,6 bisphosphate, stimulating glycolysis and inhibiting gluconeogenesis.
TLS Online TPP Program

#Question id: 24216

#Unit 1. Molecules and their Interaction Relevant to Biology

In general, high acetyl-CoA or citrate are present, or when a high proportion of the cell’s adenylate is in the form of ATP then
TLS Online TPP Program

#Question id: 24215

#Unit 1. Molecules and their Interaction Relevant to Biology

What are the target of AMP in the glycolysis and the gluconeogenesis in the same plane