TLS Online TPP Program

#Question id: 7093


The activation of zygotic hunchback expression by Bicoid protein illustrates what principle in the establishment of positional information in embryos?

#Unit 5. Developmental Biology
  1. the mother can influence development through the packaging of materials into the egg
  2. a gradient of a protein can activate a gene in a discrete region of an embryo through a threshold effect
  3. the identity of segments in the embryo is a reflection of their position in the embryo
  4. genes are activated or repressed by the binding of transcription factors to their regulatory regions
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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

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: 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: 24218

#Unit 1. Molecules and their Interaction Relevant to Biology

Phosphorylation of fructose 6-phosphate, catalysed by

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: 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