Which of the following are functions of the skin? Check all that apply. Absorpti
ID: 3475554 • Letter: W
Question
Which of the following are functions of the skin? Check all that apply.
Absorption of oils or lipid-soluble chemical or drugs, such as estrogen or nicotine, through transdermal patches
Excretion of sebum that lubricates the skin surface and hair
Secretion of the waste product, urea, during sweating
Secretion of water and salt during sweating which plays a role in electrolyte homeostasis
Apocrine sweat glands secrete sweat by having the apical portion of epithelial cells pinch off.
True
False
Which of the following is a normal response to excessive loss of body heat in a cold environment?
Sweat glands become active
Dermal blood vessels dilate
Smooth muscles relax
Dermal blood vessels constrict
Hairs are retracted into their follicles
The sodium potassium exchange pump is an example of
diffusion.
active transport.
facilitated diffusion.
filtration.
osmosis.
Which of the following statements is false regarding the sodium-potassium pump?
The ions from the extracellular fluid are then transported across the cell membrane to the inside of the cell.
With this new conformation, the carrier protein can now bind to different ions in the extracellular fluid.
The carrier protein then changes shape again.
The ions in the extracellular fluid bind to the carrier protein, and the potassium attached to the carrier protein is released.
After releasing ions into the extracellular fluid, the carrier protein exhibits a new conformation.
Membrane proteins that penetrate deeply into the lipid bilayer and can possibly extend from one surface to the other are called __________ proteins whereas other proteins that are attached to either the inner or the outer surface of the lipid bilayer are called __________ proteins.
extrinsic; peripheral
integral; peripheral
integral; intrinsic
peripheral; intrinsic
Check all that are a function of the integument.
Protection
Prevention of water loss
Temperature regulation
Movement
Immune defense
Explanation / Answer
1) The functions of skin are,
Absorption of oils or lipid-soluble chemical or drugs, such as estrogen or nicotine, through transdermal patches
Excretion of sebum that lubricates the skin surface and hair
Secretion of the waste product, urea, during sweating
Secretion of water and salt during sweating which plays a role in electrolyte homeostasis
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