IPHY 2420 EXAM 2 QUESTIONS AND
ANSWERS (GRADED A+)
What would be the best method of cooking food to minimize loss of nutrients?
A. Soaking green beans in water before pan frying
B. All cooking methods will result in the same degree of nutrient losses.
C. Steaming broccoli and carrots
D. Boiling potatoes before roasting - ANSWER-C. Steaming broccoli and carrots
How does water move throughout the body?
A. Vitamin B6 regulates water movement in the body, as vitamin B6 must be attached to
water for it to move in and out of cells.
B. Water moves through the lymphatic system and is stored in the lymph nodes.
C. Water moves freely in the blood, as its movement in the body needs no regulation.
D. Water moves by the principle of osmosis, meaning that it follows the movement of
electrolytes in the body. - ANSWER-D. Water moves by the principle of osmosis,
meaning that it follows the movement of electrolytes in the body.
In humans, water is obtained via beverages, food, and metabolic water. What is
metabolic water?
A. Water that is created from metabolic reactions in the body.
B. Water that is stored in the body for use when someone is severely dehydrated.
C. Water created by certain foods when exposed to extreme heat.
D. Water absorbed through the skin following evaporative cooling. - ANSWER-A. Water
that is created from metabolic reactions in the body
Which of the following statements about sodium and potassium is false?
A. Both are involved in nerve signal transmission.
B. Both participate in maintaining fluid balance.
C. Both are major electrolytes in the body.
D. Processed foods are a major source of both sodium and potassium. - ANSWER-D.
Processed foods are a major source of both sodium and potassium
Harvey is consuming 1,550 mg of potassium/day. Does this meet the recommendation
for daily potassium intake?
A. Yes, Harvey is just slightly over the recommendation of 1500 mg/day.
B. No, the recommendation for potassium is 4700 mg/day.
C. There is no DRI set for potassium since it is not an essential nutrient for humans.
, D. No, the recommendation for potassium is 2800 mg/day. - ANSWER-B. No, the
recommendation for potassium is 4700 mg/day
How might rapid and excessive water consumption be fatal?
A. Rapid overconsumption of water leads to lower sodium levels in the blood, which can
immediately result in death via hypertension.
B. An excess of water in the body has nowhere to go so it begins leaking into the lungs,
literally drowning the person.
C.Since water is a base, overconsumption can increase the blood pH, eventually
leading to death.
D. The excessive water intake causes water to accumulate outside of cells. In an effort
to balance the electrolyte concentrations inside and outside of the cells, water will move
into the cells. When this happens in the brain, severe cell damage can happen,
eventually causing death. - ANSWER-D. The excessive water intake causes water to
accumulate outside of cells. In an effort to balance the electrolyte concentrations inside
and outside of the cells, water will move into the cells. When this happens in the brain,
severe cell damage can happen, eventually causing death.
A football coach sees that one of his players has collapsed during an outdoor practice.
After pulling him into the shade, the coach touches the player's forehead and notices
that his skin is hot and dry. What heat illness is the player most likely suffering from?
A. The information provided is not enough to determine what illness the player may
have.
B. Heat exhaustion
C. Heat cramps
D. Heat stroke - ANSWER-D. Heat stroke
Carter has been diagnosed with Parkinson's disease. Which type of molecule is
associated with an increased risk of this disease?
A. Cholecalciferol
B. Free radicals
C. Phytochemicals
D. Antiphospholipids - ANSWER-B. Free radicals
Which of the following is not a way in which an antioxidant enzyme system keeps free
radicals under control?
A. Convert free radicals to neutral molecules
B. Make more antioxidants available
C. Break down oxidized molecules
D. Increased neutrophil production - ANSWER-D. Increased neutrophil production
ANSWERS (GRADED A+)
What would be the best method of cooking food to minimize loss of nutrients?
A. Soaking green beans in water before pan frying
B. All cooking methods will result in the same degree of nutrient losses.
C. Steaming broccoli and carrots
D. Boiling potatoes before roasting - ANSWER-C. Steaming broccoli and carrots
How does water move throughout the body?
A. Vitamin B6 regulates water movement in the body, as vitamin B6 must be attached to
water for it to move in and out of cells.
B. Water moves through the lymphatic system and is stored in the lymph nodes.
C. Water moves freely in the blood, as its movement in the body needs no regulation.
D. Water moves by the principle of osmosis, meaning that it follows the movement of
electrolytes in the body. - ANSWER-D. Water moves by the principle of osmosis,
meaning that it follows the movement of electrolytes in the body.
In humans, water is obtained via beverages, food, and metabolic water. What is
metabolic water?
A. Water that is created from metabolic reactions in the body.
B. Water that is stored in the body for use when someone is severely dehydrated.
C. Water created by certain foods when exposed to extreme heat.
D. Water absorbed through the skin following evaporative cooling. - ANSWER-A. Water
that is created from metabolic reactions in the body
Which of the following statements about sodium and potassium is false?
A. Both are involved in nerve signal transmission.
B. Both participate in maintaining fluid balance.
C. Both are major electrolytes in the body.
D. Processed foods are a major source of both sodium and potassium. - ANSWER-D.
Processed foods are a major source of both sodium and potassium
Harvey is consuming 1,550 mg of potassium/day. Does this meet the recommendation
for daily potassium intake?
A. Yes, Harvey is just slightly over the recommendation of 1500 mg/day.
B. No, the recommendation for potassium is 4700 mg/day.
C. There is no DRI set for potassium since it is not an essential nutrient for humans.
, D. No, the recommendation for potassium is 2800 mg/day. - ANSWER-B. No, the
recommendation for potassium is 4700 mg/day
How might rapid and excessive water consumption be fatal?
A. Rapid overconsumption of water leads to lower sodium levels in the blood, which can
immediately result in death via hypertension.
B. An excess of water in the body has nowhere to go so it begins leaking into the lungs,
literally drowning the person.
C.Since water is a base, overconsumption can increase the blood pH, eventually
leading to death.
D. The excessive water intake causes water to accumulate outside of cells. In an effort
to balance the electrolyte concentrations inside and outside of the cells, water will move
into the cells. When this happens in the brain, severe cell damage can happen,
eventually causing death. - ANSWER-D. The excessive water intake causes water to
accumulate outside of cells. In an effort to balance the electrolyte concentrations inside
and outside of the cells, water will move into the cells. When this happens in the brain,
severe cell damage can happen, eventually causing death.
A football coach sees that one of his players has collapsed during an outdoor practice.
After pulling him into the shade, the coach touches the player's forehead and notices
that his skin is hot and dry. What heat illness is the player most likely suffering from?
A. The information provided is not enough to determine what illness the player may
have.
B. Heat exhaustion
C. Heat cramps
D. Heat stroke - ANSWER-D. Heat stroke
Carter has been diagnosed with Parkinson's disease. Which type of molecule is
associated with an increased risk of this disease?
A. Cholecalciferol
B. Free radicals
C. Phytochemicals
D. Antiphospholipids - ANSWER-B. Free radicals
Which of the following is not a way in which an antioxidant enzyme system keeps free
radicals under control?
A. Convert free radicals to neutral molecules
B. Make more antioxidants available
C. Break down oxidized molecules
D. Increased neutrophil production - ANSWER-D. Increased neutrophil production
