TLS Online TPP Program

#Question id: 2066


Which of the following statements describes a characteristic feature of a carrier protein in a plasma membrane?

#I Life Science/ Life Sciences Group – I-V
  1. It exhibits specificity for a particular type of molecule.

  2. It requires the expenditure of cellular energy to function.

  3. It works against diffusion.

  4. It has no hydrophobic regions.

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TLS Online TPP Program

#Question id: 11549

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

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: 11549

#SCPH28 | Zoology

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

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

Which of the following are similar in structure to cholesterol?

I) estradiol

II) insulin

III) glucocorticoids

IV) testosterone

V) antidiuretic hormone

TLS Online TPP Program

#Question id: 11550

#SCPH28 | Zoology

Which of the following are similar in structure to cholesterol?

I) estradiol

II) insulin

III) glucocorticoids

IV) testosterone

V) antidiuretic hormone

TLS Online TPP Program

#Question id: 11551

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

Polypeptides can have which of the following types of effects?

I) autocrine

II) paracrine

III) endocrine

TLS Online TPP Program

#Question id: 11551

#SCPH28 | Zoology

Polypeptides can have which of the following types of effects?

I) autocrine

II) paracrine

III) endocrine