Describe how losing leaves in the autumn can affect plant nutrient requirements, and how plants handle this issue.
What will be an ideal response?
Much of the nutrients that a plant takes up from the soil ends up in the leaves. If those nutrients are lost
when a plant sheds its leaves then the plant will need to replace those nutrients during the next
growing season. Plants reduce this cost by moving significant amounts of nutrients such as nitrogen,
phosphorus, potassium, and magnesium out of leaves and into twigs and branches before the leaves
fall from the tree. This preserves those nutrients for use during the next growing season.
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If ACTH secretion was inhibited, then which of the following would result?
A. The adrenal glands would not release cortisol. B. The anterior pituitary gland would not release TSH. C. The thyroid gland would not release thyroid hormone. D. The posterior pituitary gland would not release ADH. E. None of the answer options is correct.
Misfolded proteins are involved in four of the five following diseases. Select the exception
a. mad cow disease b. scrapie c. Creutzfeldt-Jakob disease d. bovine spongiform encephalitis e. meningitis
Endocrine glands release ____
a. mucus b. hormones c. saliva d. milk e. tears
After ATP donates a phosphate group to a coupled reaction, then it becomes ADP. The ADP
A. can be converted in an exergonic reaction to form ATP. B. is a waste product that will be broken down. C. will be reduced to AMP amd eliminated from the cell. D. can be destroyed by an ATPase enzyme. E. can be recharged in an endergonic reaction to form ATP.