Font Clipboard Paragraph Styles Describe how retinoic acid participates in prote
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Question
Font Clipboard Paragraph Styles Describe how retinoic acid participates in protein synthesis. Describe how vitamin D, parathyroid hormone, and calcitonin regulate the concentration of calcium in the blood. Identify two functions of vitamin K in the body Blood clotting, ?? What properties of vitamin A make it a greater risk for toxicity than vitamin K? Identify the North Americans most at risk for fat-soluble vitamin deficiencies Define and explain the term coenzyme. Which vitamins can be synthesized in the body, and how are they synthesized? Explain why individual B-Vitamin deficiencies are rare in North America. Which B-Vitamins are added to cereal grains as part of the enrichment program? 6. 7. 8. 9. Homocysteine is of some health concern today. Why? 10. Define Upper Level and explain why certain vitamins have this designation 11. Draw a map of the energy transformation pathways in the cell and identify the biochemical reactions where B-Vitamins participate in energy metabolism. conditions for which they are used as therapy. of death? 12. Name the vitamins that have been used as pharmacologic agents, and identify the medical 13. What is pellagra? What vitamin deficiency is it related to? Why is it no longer a common cause 14. Identify which major food groups the various B-Vitamins and vitamin C are most likely found. 15. Suppose you read in the newspaper or hear on TV news that a "New" vitamin has been discovered. What criteria will have to be met in order for this substance to be a true vitamin? 16. Approximately how much water does a person need each day to stay healthy? Identify at least two situations that increase the need for water. Then list three soured of water in the averages persons diet. 17. Why are most minerals present in higher concentrations in animal foods than in plant foods? 18. How is water eliminated from the body? What physiological forces regulate this output? 19. What is the main physiological difference between teeth and bones? 20. What is the relationship between sodium and water balance, and how is that relationship monitored as well as maintained in the body? individual roles of these minerals in this system? abundant minerals, respectively. Name two ways in which phosphorous and calcium are alik 21. Within what physiological system do sodium, potassium, and calcium interact? What are the 22. In terms of total amounts in the body, calcium and phosphorous are the first and second most and two ways in which they differ. Page 1 of 1 413 words O Type here to searchExplanation / Answer
1.Describe how retinoic acid participates in protein synthesis?
Answer:- Protein synthesis is one of the most significant biological process of formation of proteins and take place in two steps : transcription and translatin.
Retinoic acid is one of the active form of vitamin A. It is important signalling molecule of vitamin A which participates in transcriptionbprocess of protein synthesis. Retinoic acid get binds to retinoic acid binding receptors and these complex further regulate gene expression by participating in protein synthesis.
2. Describe how vitamin D, parathyroid hormone , and calcitonin regulate the concentration of calcium in the blood.
Answer:- Calcium is one of the essential micronutrient , required for our neuromuscular functions as well as skeleton mineralization. Thus it is important Taos to regulate concentration of calcium in the blood. Calcium get released into blood by osteoclasts cells of bone and then it taken up by osteoblasts bone cells to produce new bone cells.
Vitamin D is to play vital role to regulate blood calcium concentration. It is require for absorption of calcium from the blood to small intestine and thus deficiency in vitamin D results in impaired calcium absorption results in weakening of bones .
When blood calcium levels drop, the parathyroid gland secretes parathyroid hormone signals kidneys to conserve calcium by reducing the amount excreted in the urine and thus regulate blood calcium concentration.
Calcitonin secreted by thyroid gland, crosscounters the action of parathyroid hormone and increases excretion of calcium in the urine if there is excess of calcium is present in blood.
3. Identify two functions of vitamin K in the body ?
- blood clotting
Answer:-
Best known function of vitamin K is blood coagulation also known as blood clotting.
Other than this vitamin K also as an important cofactor for many enzymes thus helps in synthesis of proteins that found in blood plasma, bones and kidney.
4.What properties of vitamin A make it a greater risk toxicity than vitamin K?
Answer:- Vitamins are divided in two categories: water soluble vitamins, vitamin B complex and vitamin C which are easily removed by body through urine for excess concentration and fat soluble vitamins such as vitamin A, D, E and K which stay in the body and slowly get removed. Thus excess concentration of these vitamins can cause harmful effects known as vitamin toxicity.
Vitamin A requirement is more than k, there are many food sources that are rich in vitamin A provides bit extra of it than actual requirement and as vitamin A is decomposes slowly and more thermally stable than K make it a greater risk toxicity than vitamin K.