To evaluate kidney function in a 45-year-old woman with type II diabetes, you ask her to collect her urine over 24 hours. She collects 3600 ml of urine in that period. The clinical laboratory returns the following results after analyzing the patient’s urine and plasma samples: plasma creatinine = 4 mg/dL, urine creatinine = 32 mg/dL, plasma potassium = 5 mmol/L, and urine potassium = 10 mmol/L.

What is the net renal tubular reabsorption rate of potassium in this patient?

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#Question id: 1223

#Unit 4. Cell Communication and Cell Signaling

The receptors for steroid hormones are located inside the cell instead of the membrane surface like most other signal receptors. How do steroids gain access to their receptors?

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#Question id: 21110

#Unit 12. Applied Biology

Most of the plants expressing Nla developed disease symptoms when challenged with TVMV, but the symptoms abated as the plants grew older; this phenomenon is called 

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#Question id: 23893

#Unit 13. Methods in Biology

Which technique is the best for providing spatial information about gene expression in a tissue or organisms?

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#Question id: 9572

#Unit 10. Ecological Principles

The gills of fish maintain effective oxygen uptake from water and the legs of seagulls reduce the loss of heat to the external environment by the same circulatory mechanism known as __________.

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#Question id: 18369

#Unit 12. Applied Biology

The chemical and breakdown products of herbicide DDT cause eggshell thinning and population declines in multiple North American and European bird of prey. They are remediated by