Body Fluids Quiz

What is the approximate body composition of water in males?

• 50%

• 40%

• 60%

• 70%

Which of the following is NOT a function of water in the body?

• Cooling the body through sweat secretion

• Being a solvent for nutrients and waste products

• Providing minerals

• Digesting food

What percentage of body weight does the total body water compartments constitute in a 70 kg person?

• 50%

• 40%

• 30%

• 60%

Where is the site of formation of red blood cells in adults?

• Spleen

• Red bone marrow

• Liver

• Kidneys

What is the main factor stimulating the secretion of erythropoietin for RBC production?

• Hypoxia

• Excessive iron intake

• Vitamin C deficiency

• High protein diet

Which of the following is NOT a function of blood?

• Clotting to prevent blood loss

• Producing bile for digestion

• Transporting oxygen from lungs to tissues

• Regulation of body temperature

What is the normal lifespan of a red blood cell in the circulation?

• 90 days

• 150 days

• 60 days

• 120 days

What is the main constituent of red blood cells that carries oxygen?

• Plasma

• White blood cells

• Platelets

• Hemoglobin

Which dietary substance is essential for hemoglobin synthesis?

• Iron

• Proteins

• Vitamin B12

• Folic acid

What is the shape of red blood cells that allows for efficient gas exchange?

• Spherical

• Biconcave

• Square

• Round