How might a plant cell compensate for the excessive membrane fluidity that occurs during prolonged exposures to elevated temperature?
A. reduce cholesterol content and alter the lipid composition to have shorter phospholipid tails
B. reduce membrane cholesterol content
C. alter the lipid composition to have shorter phospholipid tails and more double bonds
D. alter the lipid composition to have shorter and more unsaturated phospholipid tails
E. alter the lipid composition to have longer phospholipid tails and fewer double bonds
Answer: E
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a. passive transport. b. sunlight. c. root pressure. d. upward pressure as sugar is forced into the roots. e. pumping by the xylem cells.
A lichen is a combination of a fungus and a(n) photoautotroph
____________________ Indicate whether the statement is true or false.
Answer the following questions true (T) or false (F)
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The ability of a nonpathogen or weakly pathogenic microorganism to cause disease primarily in an immunocompromised host is termed a(n) ______ infection.
A. virulent B. opportunistic C. antagonistic D. pathogenic