18 Questions
What is the approximate percentage of water in plasma?
92%
What is the pH range of red blood cells?
7.35 - 7.45
What is the role of hemoglobin in red blood cells?
Transporting oxygen
How do red blood cells primarily transport carbon dioxide?
Through the formation of carbonic acid
What is the approximate lifespan of red blood cells?
120 days
What is the color of oxygenated arterial blood?
Bright red
What percentage of the adult human body is composed of water?
50-60%
Which of the following body fluids serves as a lubricant to prevent the respiratory system from drying out?
Mucus
What is the primary function of sweat in the human body?
To regulate body temperature
What is the average volume of blood in a human body?
5-6 liters
Which of the following functions is NOT a role of blood in the human body?
Energy production
Which of the following body fluids is essential for the complete digestion of fats and, to some extent, of proteins and carbohydrates?
Bile
What is the primary function of the renal cortex in the kidneys?
To connect to the nephrons and facilitate blood vessel formation
What is the approximate pH of urine in a healthy adult?
6.0
Which type of blood cell has a lifespan of approximately 10 days?
Platelets
What is the primary mechanism of carbon dioxide transport in the blood?
Dissolved in the plasma as a gas
What is the primary function of granulocytes in the blood?
To engulf and digest foreign particles
What is the percentage of water in urine?
95%
This quiz covers the composition of blood, including plasma, red blood cells, and their roles in maintaining the body's fluid balance and transporting essential components. Learn about the percentages of water and other substances in plasma, and the functions of different blood cells. Test your knowledge of the human circulatory system!
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