- Description
SCI 220 Week 3 WileyPLUS Weekly Exam
In this graded assignment, you are assessed on the content covered in this weeks’ readings, activities, and assignments. To help you prepare, it is recommended that you first complete this week’s Learning Path and Self-Test Learning Activities prior to completing this exam.
Click on the Assignments link in WileyPLUS to access the Week 3 Exam.
Complete the Week 3 Exam covering this week’s assigned readings listed below:
- Ch. 7: Vitamins
- Ch. 8: Water and Minerals
Note. Work submitted in WileyPLUS does not count toward attendance. Be sure to post at least two times each week in the online classrom to avoid being auto-dropped from the course.
Test Bank, Question 44
| Your answer is correct. | |
Vitamin B12 deficiency is particularly problematic because
| it causes irreversible brain damage. |
| it causes microcytic anemia. |
| it prevents folate from being converted to one of its active forms. |
| its UL is set too high. |
Test Bank, Question 60
| Your answer is correct. | |
Which of the following statements regarding vitamin A is FALSE?
| Protein and zinc status are important for healthy vitamin A status. |
| Beta-carotene is the most potent vitamin A precursor. |
| Pepsin is necessary to release the vitamin A from protein-based sources. |
| Worldwide, vitamin A deficiency is rare. | ||
Test Bank, Question 8
| Your answer is correct. | |
The amount of a particular vitamin in a food depends on all of the following EXCEPT
| how much of the food is consumed. |
| how the food is cooked. |
| how the food is stored. |
| what is added to the food during processing. |
Test Bank, Question 3
| Your answer is correct. | |
All of the following MyPlate food groups are good sources of folate except for the _____ group.
| Dairy |
| Fruits |
| Grains |
| Vegetables |
Test Bank, Question 78
| Your answer is correct. | |
Women of childbearing age should consume _____ daily from fortified foods or supplements.
| Folic acid |
| Vitamin D |
| Iron |
| Calcium |
Test Bank, Question 33
| Your answer is correct. | |
Niacin is synthesized in the body from the amino acid
| alanine. |
| leucine. |
| riboflavin. |
| tryptophan. |
Test Bank, Question 54
| Your answer is correct. | |
A family member has been taking Vitamin C supplements, but is now wondering if he should continue to spend money on these supplements. What have you learned about Vitamin C that might help them with an evidence-based decision?
| Excessive supplementation can cause dementia. |
| Vitamin C is known to prevent the common cold. |
| Excessive supplementation can interfere with drugs prescribed to prevent blood clotting. |
| Excessive supplementation can cause diarrhea and can interfere with drugs prescribed to slow blood clotting. |
Test Bank, Question 28
| Your answer is correct. | |
The active ______ coenzyme is needed to convert pyruvate into acetyl-CoA.
| folate |
| niacin |
| riboflavin |
| thiamin |
Test Bank, Question 41
| Your answer is correct. | |
Based on the content in this visual, identify each of the three labeled parts in A:B:C order.
| cysteine: homocysteine: methionine |
| homocysteine: cysteine: methionine |
| methionine: homocysteine: cysteine |
| methionine: cysteine: homocysteine |
Test Bank, Question 26
| Your answer is correct. | |
Mary needs to increase her thiamin consumption. Which of the following contains the most thiamin?
| ¼ c sunflower seeds |
| 3 oz pork chop |
| 3 oz rainbow trout |
| 1 c oatmeal |
Test Bank, Question 90
| Your answer is correct. | |
Which of the following statements is true of vitamin E?
| Supplements increase fertility even in people with adequate vitamin E status. |
| It is needed in energy metabolism. |
| Severe deficiency is a common problem in North America. |
| It is needed for night vision. |
| It protects cell membranes from oxidative damage. |
Test Bank, Question 55
| Your answer is correct. | |
The symptoms of vitamin C deficiency include gums that swell and bleed. Why does this occur?
| The lack of vitamin C allows bacteria in the mouth to irritate the gums. |
| The lack of vitamin C decreases the pH of the mouth. |
| There is reduced collagen synthesis. |
| There is increased plaque formation around the gums. |
Test Bank, Question 20
| Your answer is correct. | |
Which of the following is/are antioxidants?
| Vitamin C. |
| Vitamin E. |
| Selenium. |
| All of these nutrients serve as antioxidants. | ||
Test Bank, Question 26
| Your answer is correct. | |
Phytic acid, tannins, and oxalates _____the absorption of many minerals.
| decrease |
| increase |
| have no effect on | ||
Test Bank, Question 10
| Your answer is correct. | |
Adam has just returned from his long run of 6 miles in which he forgot his water bottle. Which of the following processes is most likely happening in Adam’s body?
| The pituitary gland is signaling the liver to conserve energy. |
| The antidiuretic hormone is signaling the kidneys to reabsorb water, thus increasing the amount of water lost in the urine. |
| The antidiuretic hormone is signaling the kidneys to reabsorb water, thus decreasing the amount of water lost in the urine. |
| His thirst mechanism has become impaired. |
Test Bank, Question 54
| Your answer is correct. | |
When blood calcium levels are low, parathyroid hormone will
| increase. |
| not change. |
| decrease. |
Test Bank, Question 61
| Your answer is correct. | |
Which of the following minerals stabilizes ATP’s structure?
| Calcium |
| Magnesium |
| Phosphorus |
| Zinc |
Test Bank, Question 60
| Your answer is correct. | |
Which of the following minerals have a role in blood pressure regulation?
| calcium and magnesium |
| calcium and phosphorus |
| phosphorus and magnesium |
| potassium and zinc |
Test Bank, Question 34
All of the following minerals are needed for the functioning of antioxidant enzymes EXCEPT for
| copper |
| phosphorus |
| sulfur |
| zinc |
Test Bank, Question 88
Stem: Which of the following statements about iron is true?
| Iron and calcium supplements should be taken together. |
| Heme iron is better absorbed than nonheme iron. |
| Vitamin C inhibits iron absorption. |
| Tomatoes are a good source of heme iron. |
| When iron levels are high, more iron is eliminated from the body in the urine. |
Test Bank, Question 65
| Your answer is correct. | |
The protein molecule that is found in red blood cells that transports oxygen to body cells is called
| hapocorrin. |
| hemoglobin. |
| myoglobin. |
| transferrin. |
Test Bank, Question 73
| Your answer is correct. | |
Which deficiency disease would be common in the areas with selenium-deficient soils?
| Cretinism |
| Hemochromatosis |
| Keshan disease |
| Pellagra |
Test Bank, Question 35
| Your answer is correct. | |
What occurs when a cofactor binds to an enzyme?
| The enzyme is activated. |
| The enzyme is no longer able to function. |
| Minerals can more easily bind to the enzyme. |
| The enzyme can cross the cell membrane for transport. |
Test Bank, Question 72
| Your answer is correct. | |
Because selenium is part of the enzyme glutathione-peroxidase, it _____ the body’s need for vitamin E.
| increases |
| has no effect on |
| decreases |