Cardiovascular System Quiz

Which of the following is NOT found in plasma?

• Salts

• Nutrients

• Blood cells

• Hormones

Why do erythrocytes have no nucleus and few organelles?

• To increase their size

• To prevent them from dividing

• To avoid using up oxygen while transporting it

• To make them more colorful

What is the color range of blood?

• Bright red to blue

• Bright red to purplish

• Green to yellow

• Blue to purple

What is the primary function of erythrocytes?

• Transport nutrients

• Transport oxygen

• Fight infections

• Produce hormones

What percentage of blood is composed of plasma?

• 55%

• 1%

• 44%

• 50%

What is the primary function of the cardiovascular system?

• Transports nutrients, gases, and wastes around the body.

• Produces hormones for growth and development.

• Breaks down food into nutrients.

• Provides structural support to the body.

What regulates the composition of plasma?

• Digestion

• Homeostasis

• Respiration

• Photosynthesis

What percentage of blood is made up of red blood cells?

• 55%

• 1%

• 44%

• 50%

What is the ratio of erythrocytes to leukocytes in the bloodstream?

• 1:1

• 10:1

• 100:1

• 1,000:1

What are the formed elements of blood?

• Erythrocytes, Leukocytes, Platelets

• Plasma, Water, Salts

• Proteins, Lipids, Carbohydrates

• Hormones, Enzymes, Vitamins