Which of the following is able to passively penetrate the plasma membrane (without a transport protein)?
O2
Small charged particles
Large polar molecules
All of the choices are correct.
O2
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Metal-reducing Geobacter and Shewanella species are important in the microbial mining of metals
Indicate whether the statement is true or false.
Small, membrane-bound sac that stores substances within a cell.
What will be an ideal response?
Dr. Kirby has been meeting with 9-year-old Loren, whose family lost everything in a tornado. In her initial visit, Loren was diagnosed with acute stress disorder. During a 2-month follow up with Dr. Kirby, Loren is still exhibiting many of the same symptoms. What should Dr. Kirby do?
a. Dr. Kirby will revise Loren's diagnosis from ASD to posttramatic stress disorder. b. Dr. Kirby will revise Loren's diagnosis from ASD to generalized anxiety disorder. c. Dr. Kirby will continue treatment for acute stress disorder for at least 6 months. d. Dr. Kirby should tell Loren she is cursed so as to speed her recovery.
Which type of metabolic reaction (catabolic or anabolic) requires ATP?
A. As amphibolic pathways, both types of reactions produce and use ATP B. Catabolic C. Anabolic