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Science: Middle School: Grades 6, 7 and 8 Quiz - Circulatory System 2 (Questions)

This Science quiz is called 'Circulatory System 2' and it has been written by teachers to help you if you are studying the subject at middle school. Playing educational quizzes is a fabulous way to learn if you are in the 6th, 7th or 8th grade - aged 11 to 14.

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As you'll already know, the circulatory system transports blood around the body through blood vessels. The earliest known writings on the circulatory system are found in the Ebers Papyrus (16^th century BCE), an ancient Egyptian medical papyrus containing over 700 prescriptions and remedies.

Recap your knowledge of the circulatory system in this quiz.

Which is the correct statement about plasma?

[ ]	A straw colored liquid portion of blood
[ ]	It contains hemoglobin
[ ]	It fights against disease
[ ]	It helps the blood to clot

Which is the correct statement about red blood cells?

[ ]	They can be produced by a type of blood cell
[ ]	They fight against disease
[ ]	They have no nucleus
[ ]	They help the blood to clot

Which is the correct statement about white blood cells?

[ ]	They can be produced by a type of blood cell
[ ]	They contain hemoglobin
[ ]	They help the blood to clot
[ ]	They protect the body against disease

Which is the correct statement about platelets?

[ ]	They can be produced by a type of blood cell
[ ]	They contain hemoglobin
[ ]	They fight against disease
[ ]	They help the blood to clot

Which is the correct statement about capillaries?

[ ]	They are very narrow blood vessels
[ ]	They contain hemoglobin
[ ]	They contain valves
[ ]	They have thick muscle

Which is the correct statement about antibodies?

[ ]	They are produced by some capillaries
[ ]	They are produced by some plasma
[ ]	They are produced by some red blood cells
[ ]	They are produced by some white blood cells

One of the functions of white blood cells is .......

[ ]	to carry carbon dioxide
[ ]	to carry oxygen
[ ]	to engulf microbes
[ ]	to help the blood to clot

One of the functions of plasma is .......

[ ]	to carry carbon dioxide from the organs to the lungs
[ ]	to carry oxygen from the lungs to the organs
[ ]	to form blood clots
[ ]	to protect the body

The function of red blood cells is .......

[ ]	to carry carbon dioxide from the organs to the lungs
[ ]	to carry oxygen from the lungs to the organs
[ ]	to form blood clots
[ ]	to protect the body

10.

Which of the following is NOT a function of blood?

[ ]	It forms part of the body's defense mechanism
[ ]	It transports food to cells
[ ]	It transports oxygen to cells
[ ]	It transports waste to cells

Science: Middle School: Grades 6, 7 and 8 Quiz - Circulatory System 2 (Answers)

Which is the correct statement about plasma?

[x]	A straw colored liquid portion of blood
[ ]	It contains hemoglobin
[ ]	It fights against disease
[ ]	It helps the blood to clot

Which is the correct statement about red blood cells?

[ ]	They can be produced by a type of blood cell
[ ]	They fight against disease
[x]	They have no nucleus
[ ]	They help the blood to clot

They have no nucleus so that they can contain lots of hemoglobin

Which is the correct statement about white blood cells?

[ ]	They can be produced by a type of blood cell
[ ]	They contain hemoglobin
[ ]	They help the blood to clot
[x]	They protect the body against disease

Some white blood cells digest microbes

Which is the correct statement about platelets?

[ ]	They can be produced by a type of blood cell
[ ]	They contain hemoglobin
[ ]	They fight against disease
[x]	They help the blood to clot

Which is the correct statement about capillaries?

[x]	They are very narrow blood vessels
[ ]	They contain hemoglobin
[ ]	They contain valves
[ ]	They have thick muscle

They are only one cell thick

Which is the correct statement about antibodies?

[ ]	They are produced by some capillaries
[ ]	They are produced by some plasma
[ ]	They are produced by some red blood cells
[x]	They are produced by some white blood cells

One of the functions of white blood cells is .......

[ ]	to carry carbon dioxide
[ ]	to carry oxygen
[x]	to engulf microbes
[ ]	to help the blood to clot

They also produce antibodies and neutralize toxins

One of the functions of plasma is .......

[x]	to carry carbon dioxide from the organs to the lungs
[ ]	to carry oxygen from the lungs to the organs
[ ]	to form blood clots
[ ]	to protect the body

Plasma also transports glucose and hormones

The function of red blood cells is .......

[ ]	to carry carbon dioxide from the organs to the lungs
[x]	to carry oxygen from the lungs to the organs
[ ]	to form blood clots
[ ]	to protect the body

10.

Which of the following is NOT a function of blood?

[ ]	It forms part of the body's defense mechanism
[ ]	It transports food to cells
[ ]	It transports oxygen to cells
[x]	It transports waste to cells

It transports waste AWAY from cells