Science 30 Unit A Lesson 1.1-1.3

What makes up around 55% of the blood?

• Plasma

• Red Blood Cells

• White Blood Cells

• Platelets

What carries oxygen around the body?

• Plasma

• Red Blood Cells

• Platelets

• White Blood Cells

During a medical examination, a doctor explains that the distinct red colour of blood is due to what component?

• Haemoglobin

• Glucose

• Hormones

• Oxygen

During a medical examination, the doctor explains that one of the following is NOT a type of blood vessel. Which one is it?

• Artery

• Capillary

• Vein

• Ventricle

Imagine you accidentally cut your finger while cooking. What is the function of the platelets in this scenario?

• To form clots (i.e. scabs) to stop the bleeding.

• To transport oxygen to the muscles for healing.

• To carry dissolved sugars to the wound site.

• To produce antibodies to fight infection.

Imagine you are a doctor explaining to a young patient. How would you describe the role of white blood cells in our body?

• To transport oxygen around the body.

• To carry dissolved sugars.

• To clot and cover wounds like cuts and grazes.

• To release antibodies to help destroy infections.

During a marathon, how do the runners' red blood cells help them keep going?

• To transport oxygen around the body and to the muscles.

• To release antibodies to fight infections.

• To carry dissolved nutrients and sugars.

• To clot and form scabs if there is a wound on the body.

Tags

NGSS.MS-LS1-3

During a marathon, which blood vessels are responsible for taking the exhausted runners' blood back TO their hearts for reoxygenation?

• Veins

• Arteries

• Capillaries

During a marathon, which blood vessels are responsible for taking oxygen-rich blood from the heart to the muscles of the runners?

• Veins

• Arteries

• Capillaries

During a medical examination, a doctor explains the functions of blood vessels. Which of these vessels is the smallest in size?

• Veins

• Arteries

• Capillaries