Which atmospheric gas does not affect global temperature?
a. carbon dioxide
b. ozone
c. methane
d. nitrous oxide
e. oxygen
E
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A scientist produces an artificial membrane from phospholipids and notices that oxygen, but not glucose readily moves through the membrane. What might account for the inability of glucose to move through the artificial membrane?
A. The artificial membrane lacked a protein needed for glucose transport. B. The artificial membrane lacked the appropriate types of phospholipids for glucose transport. C. Oxygen readily passes through the membrane, so glucose should have as well. D. The membrane lacked an adequate amount of amphipathic molecules for glucose transport. E. Thermodynamics does not allow glucose to pass through membranes produced either artificially or from living organisms.
When plants are produced by cloning, which process is most directly involved?
a. mitotic cell division b. binary fission c. meiotic cell division d. gamete production e. budding
The leaf of a plant is
A. a molecule. B. an organism. C. an organ. D. an organelle. E. a cell.
The word hormone comes from the Greek word meaning
a. target. b. response. c. secretion. d. set in motion. e. internal gland.