Saturday, December 8, 2012

Human biology questions multiple choice

Human biology questions multiple choice?
1.Increase in blood sugar level: glucagon release:: A. Calcitonin production: low blood calcium level B. Hyperthyroidism: Overproduction of thyroxine C. ADH production: high blood calcium levels D. Hypothyroidism: overproduction of thyroxine 2. Epinephrine: Initial reaction to stress:: A. aldosterone: rediness for "Flight" B. ACTH: blood calcium level C. Aldosterone: rediness to "fight" D. Norepinephrine: changes in blood pressure 3. In a person with diabetes mellitus, even though blood glucose levels may be high, A. Insulin levels still increase B. Glycogen is stored in large quantities C. Cells do not receive glucose D. None of the above 4. The amino acid based hormones A. are carried into the cell by channel proteins B. combine with steroid hormones to activate cells C. send messages from outside of cells D. cannot dissolve polar molecules Thanks
Biology - 2 Answers
Random Answers, Critics, Comments, Opinions :
1 :
I would help (if I knew all the answers) but it looks like you're just taking advantage of Yahoo Answers to get the answers to your homework. Think hard and try your best. Good luck!
2 :
The first two questions aren't worded properly so I'm not sure what the answers are.. 1) Glucagon is released when blood sugar is low.. Insulin is released when blood sugar is high. Calcitonin is a hormone produced by the thryoid gland which stimulates the uptake of calcium into bone and excretion of calcium by the kidneys. Calcitonin is secreted when blood calcium levels are high. Hyperthyroidism is the overproduction of thyroxine. ADH is anti-diuretic hormone which is released when the body is dehydrated and causes the kidneys to conserve water. 2) Aldosterone is a hormone that increases the reabsorption of sodium and water and the release of potassium in the kidneys. This increases blood volume and therefore, increases blood pressure. ACTH has nothing to do with blood calcium level, it is produced in response to biological stress. Norepinephrine is a neurotransmitter and a hormone, it is also produced in response to stress and increases heart rate and blood pressure. 3 is C. Cells do not receive glucose.. Insulin is required for cells to take up glucose.. In diabetes mellitus Insulin secretion is low or cells are insensitive to insulin. 4 is C. Send messages from outside of cells. Protein hormones bind to receptors in the plasma membrane of their target cells to produce a response in the cell. Read your textbook.. :)

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