The oxygen-carrying component in red blood cells is
A) hemoglobin.
B) bicarbonate ions.
C) iron atoms freely floating in the blood plasma.
D) the cell membrane.
Answer: A
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Which of the following is a likely target for a toll-like receptor (TLR)?
A) tumor necrosis factor B) interleukin IV C) flagellin D) insulin
In order to understand the driving force of ATP synthase in chloroplasts, researchers broke open chloroplasts, isolated
the thylakoid membrane and measured ATP synthesis under different light conditions. What were the results of this experiment?
a. ATP production occurred only in light, suggesting that the light is directly responsible for the activation of ATP synthase. b. ATP production occurred only in light, suggesting that the light is indirectly responsible for the activation of ATP synthase. c. ATP production occurred only in dark, suggesting that the light directly inhibits ATP synthase. d. ATP production occurred only in dark, suggesting that the photons of light act as allosteric (non-competitive) inhibitors of ATP synthase. e. ATP production occurred only in dark, suggesting that the light is indirectly responsible for the activation of ATP synthase.
Which of the following molecules transfers information from the nucleus to the cytoplasm?
A) mRNA B) Lipids C) DNA D) tRNA E) Proteins
Anuradha Mittal lists several potential outcomes of allowing genetic engineering (GE) in agriculture. Identify one statement she includes in her list.
a. Changes in biodiversity b. Gene transfer across species c. Decreasing use of herbicides d. Improving farmer's methods for saving seeds