Once food is digested, the nutrients must be absorbed by the epithelial cells that line the specialized portions of the alimentary canal. Small, hydrophobic molecules can diffuse down concentration gradients across the membrane. What types of molecules would require ACTIVE TRANSPORT in order to get across?
_____ minerals
_____ water
_____ monoglycerides
_____ amino acids
_____ salt
__X__ minerals
_____ water
_____ monoglycerides
__X__ amino acids
__X__ salt
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How does the body use absorbed fatty acids?
What will be an ideal response?
Which of the following is NOT true of GMO
crops?
a. there have been no problems with genes escaping from GMO plants b. some GMO crops allow farmers to use fewer pesticides c. some GMO crops have fewer weeds d. some GMO crops are more nutritious e. all of these are true of GMO crops- none of these is NOT true
What is the correct ordering in the hierarchal levels of the organization of life, from the least inclusive to the most
inclusive?
a. tissues, cells, population, organisms, and organs b. molecules, cells, organs, tissues, and organisms c. ecosystems, populations, tissues, cells, and organs d. cells, tissues, organs, communities, and populations e. cells, tissues, organs, organisms, and ecosystems
Type 1 diabetes is considered an autoimmune disease because the body's immune system attacks and destroys insulin-producing cells in the pancreas
Indicate whether the statement is true or false