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TLS Online TPP Program

#Question id: 24225

Choose the incorrect option

#Unit 1. Molecules and their Interaction Relevant to Biology
  1. There are two kind of pyruvate kinase 1. Liver isozyme (L form), 2. Muscle isozyme (M form)
  2. The liver isozyme (L form) is also regulated hormonally by glucagon. Glucagon to PKA mediated phosphorylation inactivate Pyruvate Kinase L.
  3. The muscle isozyme (M form) PK is not affected by this phosphorylation mechanism.
  4. Glucagon increases the cellular level of fructose 2,6 bisphosphate, stimulating glycolysis and inhibiting gluconeogenesis.
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TLS Online TPP Program

#Question id: 11793

#Unit 1. Molecules and their Interaction Relevant to Biology

On the proteoglycan the glycosaminoglycan chain can bind to extracellular proteins through
TLS Online TPP Program

#Question id: 28883

#Unit 4. Cell Communication and Cell Signaling

Homolog of β-catenin is___
TLS Online TPP Program

#Question id: 11957

#Unit 7. System Physiology – Animal

Because the foods eaten by animals are often composed largely of macromolecules, animals need to have mechanisms for ________.
TLS Online TPP Program

#Question id: 5616

#Unit 5. Developmental Biology

In the sperm the elevated Ca2+ level in a relatively basic cytoplasm triggers
TLS Online TPP Program

#Question id: 33478

#Unit 2. Cellular Organization

Find true and false statements
A. Comparisons of related genes in different species show that the sequences of the corresponding exons are usually conserved
B. when two genes are related, the relationship between their exons is closer than the relationship between their introns.
C. The sequences of the introns are much less similar.
D. Introns evolve much more rapidly than exons because of the lack of selective pressure to produce a polypeptide with a useful sequence.