In which of the following cases is energy NOT needed for transmembrane transport?

a. Lysine moves into the cell against its concentration gradient via the Na+/lysine symporter.

b. Potassium ions (K+) move out of the cell down the K+ concentration gradient via potassium channels.

c. Glucose moves into the cell down its concentration gradient via a glucose uniporter.

d. Sodium ions (Na+) move out of the cell down the Na+ concentration gradient via sodium channels.

Which of the following are correct?

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#Question id: 11707

#Unit 7. System Physiology – Animal

A human who has no access to fresh water but is forced to drink seawater instead will ________.

TLS Online TPP Program

#Question id: 11708

#Unit 7. System Physiology – Animal

Use the following clinical laboratory test results:

Urine flow rate = 1 ml/min

Urine inulin concentration = 100 mg/ml

Plasma inulin concentration = 2 mg/ml

Urine urea concentration = 50 mg/ml

Plasma urea concentration = 2.5 mg/ml

What is the glomerular filtration rate (GFR)?

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#Question id: 11709

#Unit 9. Diversity of Life Forms

Which process results in genetic recombination, but is separate from the process wherein the population size of Paramecium increases?

TLS Online TPP Program

#Question id: 11710

#Unit 9. Diversity of Life Forms

Why is the filamentous morphology of the water molds considered a case of convergent evolution with the hyphae (threads) of fungi?

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#Question id: 11711

#Unit 9. Diversity of Life Forms

The Irish potato famine was caused by an organism that belongs to which group?

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#Question id: 11712

#Unit 9. Diversity of Life Forms

The following are all characteristic of the water molds (oomycetes) except