What is the difference between the processes of nutrient absorption by simple diffusion versus active transport?
A) ?Nutrients absorbed by active transport cross freely into intestinal cells, while nutrients absorbed by simple diffusion move against their concentration gradient, which requires energy.
B) ?Nutrients absorbed by simple diffusion cross freely into intestinal cells, while nutrients absorbed by active transport move against their concentration gradient, which requires energy.
C) ?Nutrients absorbed by simple diffusion need a specific carrier molecule to transport them into intestinal cells, while nutrients absorbed by active transport move against their concentration gradient, which does not require energy.
D) ?Nutrients absorbed by simple diffusion cross freely into intestinal cells, while nutrients absorbed by active transport need a specific carrier molecule to transport them into intestinal cells, which does not require energy.
B
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Approximately how many people in the United States are killed by foodborne illness each year?
a. 1,000 b. 3,000 c. 5,000 d. 7,000 e. 9,000
Which of the following is protective and powerful enough to "offset" one of the major risk factors for heart disease?
A) Total cholesterol < 200 mg/dl B) High-density lipoprotein cholesterol > 60 mg/dl C) Low-density lipoprotein cholesterol ˜ 100 mg/dl D) Triglycerides < 150 mg/dl
The main reason to use sodium bicarbonate is to help buffer the lactic acid produced when the lactic acid energy system is utilized.
Answer the following statement true (T) or false (F)
Farmers are sometimes paid by the government to grow _______, which can reduce production of less commonly grown fruits and vegetables.
Fill in the blank(s) with the appropriate word(s).