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TLS Online TPP Program

#Question id: 18788

The above chart shows the result of flow cytometry based on the scattering forward scattering (FS) and side scattering (SS), in which four cell are used the possible result maybe

#Unit 13. Methods in Biology
  1. A –small and complex, B – large and simple, C – small and complex, D – large and simple
  2. A –small and simple, B – large and complex, C – small and complex, D – large and simple
  3. A –small and simple, B – large and simple, C –large and simple, D – large and simple
  4. A –small and granular, B – large and simple, C – small and complex, D – large and granular
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TLS Online TPP Program

#Question id: 11545

#Unit 7. System Physiology – Animal

Growth factors are local regulators that ________.
TLS Online TPP Program

#Question id: 11546

#Unit 7. System Physiology – Animal

Steroid and polypeptide hormones typically have in common ________.
TLS Online TPP Program

#Question id: 11547

#Unit 7. System Physiology – Animal

A cluster of tumor cells that produces and secretes growth factors to induce surrounding cells to grow and divide is showing which type of cell-to-cell signaling?
TLS Online TPP Program

#Question id: 11548

#Unit 7. System Physiology – Animal

If a portion of the pancreas is surgically removed from a rat and the rat subsequently loses its appetite, one explanation is that the removed portion contains cells that secrete a chemical signal that somehow stimulates appetite. Given this scenario, what type of chemical signaling is occurring?
TLS Online TPP Program

#Question id: 11549

#Unit 7. System Physiology – Animal

If a biochemist discovers a new molecule, which of the following pieces of data would allow her to draw the conclusion that the molecule is a steroid hormone?

I) The molecule is lipid soluble.

II) The molecule is derived from a series of steps beginning with cholesterol.

III) The molecule acts at a target tissue some distance from where it is produced.

IV) The molecule uses a transport protein when in an aqueous solution such as blood.
TLS Online TPP Program

#Question id: 11550

#Unit 7. System Physiology – Animal

Which of the following are similar in structure to cholesterol?

I) estradiol

II) insulin

III) glucocorticoids

IV) testosterone

V) antidiuretic hormone