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 this patient’s approximate GFR, assuming that she collected all her urine in the 24-hour period?

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#Question id: 12074

#Unit 7. System Physiology – Animal

Which of the following tends to increase potassium secretion by the cortical collecting tubule?

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#Question id: 23499

#General Aptitude

Which part of the Central Processing Unit (CPU) performs calculation and makes decision

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#Question id: 1377

#Unit 4. Cell Communication and Cell Signaling

Which of the following statements apply to both eukaryotic cell walls and animal cell extracellular matrices? Please select all that apply.

a) They are inflexible structures that support cells.

b) They are built to a common overall structure that can be described as 'fibres in a matrix'.

c) Their protein components are synthesized by ribosomes of the rough endoplasmic reticulum.

d) They limit the diffusion of ions and small molecules into the cell.

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#Question id: 4662

#Unit 3. Fundamental Processes

Transcriptional activation by Pol II initiates transcription, polymerase pauses after transcribing fewer than 100 nucleotides due to the action of the elongation inhibitor such as

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#Question id: 10986

#Unit 7. System Physiology – Animal

Which of the following conditions at the A-V node will cause a decrease in heart rate?