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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: 11072

#7. System Physiology – Animal

The following diagram shows pulmonary airway resistance expressed as a function of pulmonary volume. Which relationship best describes the normal lung?
TLS Online TPP Program

#Question id: 15479

#12. Applied Biology

Out of the following what usually supports the fastest growth rate and is therefore considered the preferred nitrogen source for E. coli
TLS Online TPP Program

#Question id: 5028

#11. Evolution and Behavior

What is the probable sequence in which the following clades of animals originated, from earliest to most recent?

1. tetrapods

2. vertebrates

3. deuterostomes

4. amniotes

5. bilaterians
TLS Online TPP Program

#Question id: 17215

#7. System Physiology – Animal

What do you mean by local adaption system (LAS)?
TLS Online TPP Program

#Question id: 19225

#12. Applied Biology

Modification of the tissue culture conditions by the inclusion of ________ during transformation of grape, rice, corn, or soybean has been found to increase the transformation frequencies of those plant cells.