Answer: d. angiotensin is detected by the hypothalamus.
Explanation:
Angiotensin is a hormone which causes the narrowing of the blood vessels. This helps in maintaining the blood pressure and also maintains the fluid balance in the body. The hormone acts on the brain. This hormone binds to the hypothalamus gland of the body, it stimulates the thirst and increases the demand for water intake. It also stimulates the release of antidiuretic hormone by the pituitary gland to increase the concentration of urine by preventing water loss.
The statement 'phytochemicals may be guardians of our health, with concentrated extracts that provide protective benefits superior to whole foods' is False.
<h3>What are phytochemicals?</h3>
Phytochemicals are specific chemical substances extracted form plants that may confer curative properties to different types of diseases and conditions.
In conclusion, the statement 'phytochemicals may be guardians of our health, with concentrated extracts that provide protective benefits superior to whole foods' is False.
Complete question:
Phytochemicals may be guardians of our health, with the safety of consuming concentrated extracts that provide protective benefits superior to whole foods. True or False
Learn more about phytochemicals here:
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Answer:
Given
Per Kg of body mass, there is 3 gram of potassium
And abundance of three isotopes are as follows
Potassium-39, Potassium-40, and Potassium-41. Have abundances respectively as 93.26%, 0.012% and 6.728%.
1) A body weighing 80 Kg will have 240 grams of potassium. And the amount of Potassium-40 will be 0.012% of 240 gram
= 240*0.012/100 = 0.0288 gram.
2) Dose in (Gy) = (energy absorbed)/(mass of the body) = ( 1.1*106*1.6*10-19)/(80) = 22*10-10 J/kg
Dose (in siverts) = RBE*Dose(in Gy) = 1.2*22*10-10 = 26.4*10-10
