Biology, 09.07.2019 16:30 constipatedcow18
Muscle cells constantly need to remove sodium ions, na+, out of the cell and transport potassium ions, k+, into the cell in order to maintain homeostasis and for the muscles to work properly. both ions are moved against their concentration gradient. which of the following scenarios is depicting the sodium (na+)- potassium (k+) pump?a. a because polar molecules can pass through the bilipid layer. b. d because molecules cannot pass through the bilipid layer. c. d because a protein is needed for nonpolar molecules to cross the membrane. d. d because the molecules move from a low concentration to a high concentration
Answers: 1
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Tlymphocytes mature in the? a. thyroid gland. b. bone marrow. c. spleen. d. thymus.
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Organisms that successfully adapt will leave to grownone of the above
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Agroup of students is studying convection currents. they fill two identical balloons with the same amount of helium. one balloon is placed in a freezer and the other in an area with warm air. after 10 minutes, the balloons are released from a height of 1 meter. which of the following do the students most likely observe? question 8 options: the cold balloon expands and rises. the warm balloon shrinks and sinks. the balloons rise at the same rate. both balloons are the same size. the ballons both rise. the cold ballon is larger than the warm balloon. the warm balloon expands and rises. the cold balloon shrinks and sinks.
Answers: 3
Muscle cells constantly need to remove sodium ions, na+, out of the cell and transport potassium ion...
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