How is the resting potential formed? How is it maintained?
What will be an ideal response?
It is formed by diffusion of ions resulting in ionic imbalances that polarize the membrane. It is maintained by active transport processes.
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What is the major function of ribosomes?
A) produce ATP B) move through the extracellular fluid C) manufacture proteins D) reproduce themselves E) package proteins
Lymph is ________ that has entered a lymphatic capillary.
Fill in the blank(s) with the appropriate word(s).
What is the pacemaker that sets the rate of the heartbeat?
A. The AV node B. The Purkinje fibers C. The vagus nerve D. The SA node E. The bundle of His
Which are differences between cardiac muscle tissue and skeletal muscle tissue?a: The sarcoplasmic reticulum in cardiac muscle is less extensive.b: The sarcoplasmic reticulum in cardiac muscle is more organized.c: Cardiac muscle has intercalated discs; skeletal muscle does not.d: Cardiac muscle has 1 or 2 nuclei per cell; skeletal muscle has multiple nuclei per cell.e: Cardiac muscle has more well-defined terminal cisternae.
A. a, b, e B. a, c, d C. a, c, e D. b, c, e E. b, d, e