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TLS Online TPP Program

#Question id: 1104

Which of the following statements is true of signal molecules?

#4. Cell Communication and Cell Signaling

  1. When signal molecules first bind to receptor tyrosine kinases, the receptors phosphorylate a number of nearby molecules.

  2. In response to some G protein-mediated signals, a special type of lipid molecule associated with the plasma membrane is cleaved to form IP3 and calcium.

  3. In most cases, signal molecules interact with the cell at the plasma membrane, enter the cell, and eventually enter the nucleus.

  4. Protein kinase A activation is one possible result of signal molecules binding to G protein coupled receptors.

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TLS Online TPP Program

#Question id: 11134

#7. System Physiology – Animal

Which of the following statements concerning synaptic transmission is correct?
TLS Online TPP Program

#Question id: 10281

#6. System Physiology – Plant

Gluconeogenesis is particularly important in plants such as the castor oil plant Ricinus communis and sunflower that store carbon in which form .
TLS Online TPP Program

#Question id: 1058

#4. Cell Communication and Cell Signaling

Phage-encoded enzymes are
TLS Online TPP Program

#Question id: 6978

#5. Developmental Biology

Removal of the apical ridge leads to
TLS Online TPP Program

#Question id: 2086

#2. Cellular Organization

Which of the following is (are) not present in biomembranes?