Food And Nutrition 3rd Edition - Chapter 21 Testbank

10 Questions | By Allenandunwin | Updated: Mar 21, 2022 | Attempts: 61

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The Food and Nutrition testbanks consist of multiple choice questions that test your knowledge of the topics covered in the book. You can use these questions to check your understanding as you read through each chapter, or practise for your exam.

Questions and Answers

1.

The osmotic gradient in body fluids is mostly due to ions of:
- A.
  
  Sodium
- B.
  
  Potassium
- C.
  
  Chloride
- D.
  
  Phosphate
- E.
  
  All of the above
2.

Most body fluids contain concentrations of electrolytes which maintain an osmolarity of:
- A.
  
  200 mOsm/L
- B.
  
  260 mOsm/L
- C.
  
  300 mOsm/L
- D.
  
  360 mOsm/L
- E.
  
  400 mOsm/L
3.

Death may result from losses of body water greater than:
- A.
  
  2.5%
- B.
  
  5%
- C.
  
  10%
- D.
  
  20%
- E.
  
  25%
4.

Insensible water loss refers to:
- A.
  
  Losses through skin and lungs
- B.
  
  Losses through urine and faeces
- C.
  
  Negligible and insignificant losses occurring every day
- D.
  
  Losses by athletes during exercise
- E.
  
  Unexplained water losses
5.

This organ plays a major role in maintaining the volume and osmotic strength of body fluids:
- A.
  
  Lungs
- B.
  
  Kidneys
- C.
  
  Liver
- D.
  
  Gut
- E.
  
  Pituitary gland
6.

Solid foods provide approximately ___ of a healthy individual's daily water intake.
- A.
  
  5%
- B.
  
  10%
- C.
  
  20%
- D.
  
  30%
- E.
  
  60%
7.

The total body water content of the average male adult is:
- A.
  
  50%
- B.
  
  60%
- C.
  
  70%
- D.
  
  80%
- E.
  
  90%
8.

To conserve body water, the human body is capable of producing urine that has an osmolarity ________ than blood plasma.
- A.
  
  5 times weaker
- B.
  
  10 times weaker
- C.
  
  2 times greater
- D.
  
  5 times greater
- E.
  
  10 times greater
9.

Which of the following is a function of water in the human body?
- A.
  
  A medium for biological reactions
- B.
  
  A component of all body cells
- C.
  
  A transport medium for nutrients and waste
- D.
  
  Body temperature regulation
- E.
  
  All of the above
10.

Dehydration can have severe physiological consequences in ___________ and can be caused by __________________.
- A.
  
  Infants, severe diarrhoea and vomiting
- B.
  
  Elderly, controlled diabetes
- C.
  
  Athletes, perspiration and adequate fluid
- D.
  
  All of the above
- E.
  
  None of the above