Science Form 3 CHAPTER 3 QUIZ

The main function of the blood circulatory system is________.

• To give the body structure and support

• Excrete waste

• transport nutrients, and gases throughout the body

• to transport messages from the body to the brain

True or False: The blood circulatory system in human does not help the body regulate temperature.

• True

• False

The main function of the red blood cells is to ___________.

• transport oxygen

• fight infection

• give blood its color

• help clot blood

White blood cells______________.

• allow for gases to exchange

• give blood its color

• fight infection and disease

• help clot blood

The human heart is an organ that pumps blood throughout the body supplying oxygen, nutrients, blood, and hormones to and from the tissues removing ____________ and other wastes.

• sulphur dioxide

• carbon moxoide

• water molecules

• carbon dioxide

The plasma that contains blood cells is mainly made up of_____________.

• cytoplasm

• nutrients

• waste

• water

The heart is made up of _________ chambers

• one 
• two 
• three
• four

Oxygenated blood from lungs enters the heart through the ________.

• artery

• capillary

• pulmonary veins

• vena cava

Oxygenated blood leaves the heart through the__________.

• aorta

• inferior vena cava

• pulmonary artery

• blood capillaries

_________ allows the flow of blood in only one direction from right atrium to the right ventricle.

• semilunar valves

• tricuspid valves

• bicuspid valves

• pulses