The rate of carrier-mediated transport is limited by
a. the glycocalyx
b. osmolarity
c. tonicity
d. competition with other molecules
e. the number of protein channels present in the membrane
D
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A brain injury with swelling and bleeding with possible severe hemorrhaging (hematoma) is known as a ________
A) CVA B) Concussion C) Contusion D) TIA
Although the integument is a covering, it is by no means simple, and some of its functions include ________.
A) the dermis providing the major mechanical barrier to chemicals, water, and other external substances B) resident macrophage-like cells whose function is to ingest antigenic invaders and present them to the immune system C) cooling the body by increasing the action of sebaceous glands during high-temperature conditions D) epidermal blood vessels serving as a blood reservoir
Which of the following is NOT part of a renal lobe?
a) adjacent tissues of the renal columns b) major and minor calyces c) renal pyramid d) renal cortex above the renal pyramid
Which structures form the boundaries of the sarcomere?
A) Thin filaments B) Thick filaments C) Z-discs D) Triads