What is the potential significance of root exudates?
What will be an ideal response?
Root exudates are organic compounds such as carbohydrates, enzymes and other proteins that are
released into the soil by roots. These root exudates may improve a plant’s access to particular
nutrients. Root exudates may also promote the growth of soil organisms that convert nitrogen into a
chemical form plant roots can absorb.
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When cytosolic levels of iron increase, intracellular ferritin levels will
A. decrease. B. not change. C. increase. D. fluctuate by increasing and decreasing in a random fashion. E. drop until iron levels increase further.
The class of neurotransmitters that most commonly acts as a modulator of postsynaptic cell response are the
A. amino acids. B. gases such as nitric oxide. C. neuropeptides. D. biogenic amines. E. acetylcholine.
The sum of all chemical activities taking place in an organism is:
a. anabolism. b. catabolism. c. metabolism. d. dehydration synthesis. e. condensation reactions.
The two cell divisions result in ________ daughter cells, rather than _________ daughter cells in mitosis
Fill in the blank(s) with the appropriate word(s).