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TLS Online TPP Program

#Question id: 1084

Which observation suggested to Sutherland the involvement of a second messenger in epinephrine's effect on liver cells?

#SCPH28 | Zoology

  1. Receptor studies indicated that epinephrine was a ligand.

  2. Glycogen breakdown was observed only when epinephrine was administered to intact cells.

  3. Glycogen breakdown was observed when epinephrine and glycogen phosphorylase were combined in a cell-free system.

  4. Epinephrine was known to have different effects on many types of cells.

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TLS Online TPP Program

#Question id: 15874

#SCPH05 I Biotechnology

Callus culture show numerical chromosomal changes such as;
TLS Online TPP Program

#Question id: 633

#SCPH05 I Biotechnology

An amino acid transporter protein is responsible for the transport of a specific amino acid across a membrane. The KI values of several competitive inhibitors of the amino acid transporter are shown above. Based on these data, which of the following is most likely the amino acid transported by this protein?
TLS Online TPP Program

#Question id: 3882

#SCPH01 Biochemistry

The reverse transcriptase of an animal RNA virus catalyzes:
TLS Online TPP Program

#Question id: 10956

#I Life Science/ Life Sciences Group – I-V

The coagulation pathway that begins with tissue thromboplastin is
TLS Online TPP Program

#Question id: 16771

#SCPH06 I Botany

What is the median?