The resistance of the pulmonary tree is so low that a 1 cm of water pressure gradient is sufficient to cause normal air flow during resting conditions. Which of the following often has a substantial resistance during pulmonary disease states that can limit alveolar ventilation?

TLS Online TPP Program

#Question id: 24250

#Unit 2. Cellular Organization

Core histone are recognised by the presence of

TLS Online TPP Program

#Question id: 19365

#Unit 13. Methods in Biology

Which vectors carry the longest foreign DNA fragments?

TLS Online TPP Program

#Question id: 12282

#Unit 10. Ecological Principles

Pielou Evenness index

TLS Online TPP Program

#Question id: 23092

#Unit 12. Applied Biology

During which stage of wastewater treatment are methanogenic microbes most important?

TLS Online TPP Program

#Question id: 11552

#Unit 7. System Physiology – Animal

Which of the following are properties of steroid hormones?

I) Steroid hormones are lipid soluble and easily cross the phospholipid bilayer.

II) Steroid hormones usually exert their effects on target cells through membrane receptor proteins.

III) Steroid hormones act on cells close to where they were produced.

IV) Steroid hormones regulate gene transcription by binding to intracellular receptor proteins.