Which of the following pairings represents homologous structures?
A) labia majora : labia minora
B) ovary : testis
C) clitoris : testis
D) ovary : scrotum
B
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Indicate whether the statement is true or false
Which statement about movement into the cytosol is false?
a. If glucose and sodium can both combine with the same carrier, the presence of one of these molecules decreases the rate of entry of the other. b. In simple diffusion, the rate of entry of an ion is directly proportional to its concentration in the cytosol. c. When a glucose symporter becomes saturated, the rate of glucose entry decreases. d. None of the statements are false. e. All of the statements are false.
Which of the following functions to regulate a short-term response to stress?
A. Mineralocorticoids B. Epinephrine C. Glucocorticoids D. All apply.
When sodium is actively transported from tubular cells to the interstitial fluid,
A. no energy is needed. B. glucose and amino acids are countertransported at the same time. C. Na+ concentration gradient is established between the tubule lumen and tubule cell. D. water is countertransported by carrier molecules. E. water is secreted.