During an infection, white blood cells travel to the infected site and phagocytize the pathogens. After phagocytosis,
primary lysosomes fuse with the phagocytic vesicle to form a larger vesicle called a secondary lysosome. The purpose for
this process is to:
a. Both B and D.
b. degrade the bacteria and export it from the cell.
c. wrap the pathogen in additional membrane, rendering them harmless.
d. mix the pathogens with strong hydrolytic enzymes and destroy them.
e. coat the bacteria in lipids derived from the Golgi complex, which cover and smother them.
a
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The reducing agent during the Calvin cycle is:
A. NADPH. B. ATP. C. oxygen. D. NADH. E. FADH2.
When placed in an aqueous solution, amphipathic molecules will orient themselves with
A. hydrophobic hydrocarbon chains facing the water and hydrophilic head groups in the middle. B. hydrophilic hydrocarbon chains facing the water and hydrophobic head groups in the middle. C. hydrophilic hydrocarbon chains in the middle and hydrophobic head groups facing the water. D. hydrophobic hydrocarbon chains in the middle and hydrophilic head groups facing the water.
You are inspired by your professor's lecture on human demography to decrease your ecological footprint. What steps would best help you accomplish this goal? Select all that apply.
_____ Carpool, walk, or bike more often. _____ Trade in your sedan for an SUV you can use for camping. _____ Start a high-protein diet that replaces refined carbohydrates with meat. _____ Eat meat-free meals at least one day a week. _____ Dress warmer and turn down the thermostat. _____ Heat your home using the fireplace instead of natural gas. _____ Take a road trip to visit all the national parks. _____ Live out in the countryside, even if your job is in the city.
Which group of angiosperms includes grasses and lilies?
a. Monocots b. Dicots c. Basal angiosperms d. Eudicots