The extracellular matrix outside the plasma membrane of animal cells is typically composed of
A) collagen and proteoglycans.
B) lipids.
C) cellulose.
D) peptidoglycan.
E) collagen, proteoglycans, lipids, and peptidoglycan.
Answer: A
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The definition of a generation is _____
A) twenty years B) the average time between a mother's first offspring and her daughter's first offspring C) the average time between a father's first offspring and his son's first offspring D) the average time between parents' first offspring and their child's first offspring
Which system involves plasma proteins
activated when an organism's pattern receptors become bound to anything? a. cytokine b. complement c. suppressor d. enhancer e. coagulation
For the following medical conditions, describe the likely cellular organelle or structure that has been
affected in such a way as to cause the condition (note: There may be more than one organelle or structure involved): A. The sperm of a man cannot swim, thus rendering him infertile. B. A child experiences kidney failure due to Fabry's disease where the cells lining the inside of the kidney tubule accumulate abnormally large amounts of glycolipids that are usually degraded by enzymes. C. A person dies within minutes after ingesting cyanide because ATP is no longer being synthesizedWhat will be an ideal response?
A molecule moves down its concentration gradient using a transport protein in the plasma membrane. This is an example of
a. active transport b. facilitated diffusion c. diffusion d. exocytosis e. endocytosis