What is the term for the type of transport where two substrates cross the membrane while bound to a carrier protein, with at least one following its concentration gradient?
pinocytosis
cotransport
osmosis
facilitated diffusion
cotransport
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Answer the following statements true (T) or false (F)
1. Chromosomes and chromatin are both made of DNA. 2. Filtration is an example of a passive transport process. 3. The diffusion of water through a selectively permeable membrane is called dialysis. 4. Filtration uses hydrostatic pressure to move material through a membrane. 5. Osmosis and dialysis are special cases of diffusion.
The kidney ducts, bladder, thyroid gland, and tonsils all develop from the primary germ layer called the:
a. ectoderm b. mesoderm c. endoderm d. none of the above
Assume a person has a blood pressure recording of 125/77
a. What is the systolic pressure?____________________ b. What is the diastolic pressure?____________________ c. What is the pulse pressure?____________________ d. What is the mean arterial pressure?____________________ e. Would any sound be heard when the pressure in an external cuff around the arm was 130 mm Hg? ____________________ f. Would any sound be heard when cuff pressure was 118 mm Hg? ____________________ g. Would any sound be heard when cuff pressure was 75 mm Hg? ____________________
In compact bone, the matrix rings that surround the central canal of each osteon are called
A. perforating canals. B. interstitial lamellae. C. circumferential lamellae. D. canaliculi. E. concentric lamellae.