4) What is unique about transport epithelial cells in the ascending loop of Henl

Question

4) What is unique about transport epithelial cells in the ascending loop of Henle in humans? a) their membranes are impermeable to salt ions, b) they are not in contact with interstitial fluid, c) their membranes are impermeable to water d) they are stratified e) they are not epithelium

5) Sexual reproduction a) allows animals to conserve resources and reproduce during optimal conditions b) produces diversity that enhances survival of a population in a changing environment c) yields more offspring more rapidly than is possible with asexual reproduction d) enables males and females to remain isolated from each other while rapidly colonizing habitats e) guarantees that both parents will provide care for each offspring

6) What substance is reabsorbed from the collecting duct before being re-secreted into the ascending limb of the LOH? a) H+, b) glucose, c) NaCl, d) urea, e) water

7) What is the limiting factor for glomerular filtration? a) shape, b) charge, c) size, d) water affinity, e) solubility

Explanation / Answer

4) What is unique about transport epithelial cells in the ascending loop of Henle in humans?
The answer is C) Their membranes are impermeable to water.

5) Sexual reproduction
The answer is b) produces diversity that enhances survival of a population in a changing environment
Because while producing gametes, the MMCs undergo meiosis, due to recombination, they produces diversity which enhances the survival of pouplation in a changing environment.

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