Select the option below that most accurately predicts the relative rates of diffusion of these molecules (fastest to slowest) across the phospholipid bilayer: Thymine, estrogen, ethanol, sodium
What will be an ideal response?
estrogen > ethanol > thymine > sodium
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A good friend has started the Atkins diet (a plan focused on eating food that is low in carbohydrates) and calls to ask you which foods to avoid. Which of the following foods are high in carbohydrates?
a. ribeye steak, bacon, pork chops b. butter, milk, cheese c. rice, bread, corn d. eggs, chicken wings, yogurt
The antimicrobial action of artemisinin is not well understood but this chemical appears to ________.
A. form reactive oxygen intermediates inside Plasmodium-infected red blood cells B. raise the internal pH, clump the plasmodial pigment, and intercalate into plasmodial DNA C. swell the Plasmodium falciparum food vacuoles D. inhibit heme polymerase, an enzyme that converts toxic heme into nontoxic hemazoin
Cestodes are often transmitted via which of the following?
A) aerosols B) open wounds in the skin C) undercooked meats D) water
The base sequences that are left behind after the introns have been spliced out by enzymes are the ________
A) phosphates B) anticodons C) exons D) genes