CH 18

Aiden, Anika, and Maya are on a science adventure! They discover a mysterious red liquid and wonder, "What type of tissue is blood classified as?" Can you help them solve the mystery?

• Epithelial tissue

• Liquid connective tissue

• Nervous tissue

• Muscular tissue

Answer explanation

Blood is classified as liquid connective tissue because it consists of cells suspended in a liquid matrix called plasma, which facilitates the transport of nutrients, gases, and waste throughout the body.

Imagine Anika, Emma, and Lily are on a thrilling journey inside the human body! They want to know: what is the primary function of arteries in the cardiovascular system?

• Transport blood towards the heart

• Allow for exchange between blood and body tissues

• Transport blood away from the heart

• Pump blood and allow for one-way flow

Answer explanation

The primary function of arteries is to transport blood away from the heart, delivering oxygen-rich blood to the body's tissues. This distinguishes them from veins, which carry blood back to the heart.

Olivia, Aiden, and Mia are learning about the cardiovascular system. Which component lets their blood exchange nutrients and gases with their body tissues?

• Arteries

• Veins

• Capillaries

• Heart

Answer explanation

Capillaries are the smallest blood vessels in the cardiovascular system, allowing for the exchange of oxygen, nutrients, and waste products between blood and body tissues, making them essential for this process.

Lily, Rohan, and Abigail are on a journey through the cardiovascular system! They want to know: what important job do veins have in this adventure?

• Transport blood away from the heart

• Allow for exchange between blood and body tissues

• Transport blood towards the heart

• Pump blood and allow for one-way flow

Answer explanation

Veins are responsible for transporting blood towards the heart. They carry deoxygenated blood from the body back to the heart, which is essential for maintaining proper circulation in the cardiovascular system.

Scarlett and Avery are on a science adventure! They discover erythrocytes while exploring the bloodstream. What is the main job of these amazing cells?

• Defend against pathogens

• Transport respiratory gases

• Help form clots

• Contain plasma proteins

Answer explanation

The primary function of erythrocytes, or red blood cells, is to transport respiratory gases, specifically oxygen from the lungs to the tissues and carbon dioxide from the tissues back to the lungs.

Luna, Zoe, and Mia are learning about blood in science class. Which component of blood acts as the body's superhero, defending against invading pathogens?

• Erythrocytes

• Leukocytes

• Thrombocytes

• Plasma

Answer explanation

Leukocytes, or white blood cells, are the primary component of blood responsible for defending against pathogens. They identify and attack bacteria, viruses, and other foreign invaders, unlike erythrocytes (red blood cells) and thrombocytes (platelets).

Noah accidentally gets a small cut while playing soccer. Which role do his thrombocytes play in helping him?

• Transport nutrients

• Defend against pathogens

• Help form clots

• Carry oxygen

Answer explanation

Thrombocytes, or platelets, play a crucial role in hemostasis by helping to form clots. They aggregate at injury sites to prevent bleeding, making 'Help form clots' the correct answer.

Jackson, James, and Daniel are learning about blood in science class. Can you help them figure out what plasma contains?

• Red blood cells

• White blood cells

• Proteins and dissolved solutes

• Platelets

Answer explanation

Plasma is the liquid component of blood and primarily contains proteins and dissolved solutes, which are essential for various functions, including maintaining osmotic pressure and transporting nutrients.

James and Sophia are learning about blood in science class. Can you help them figure out which of the following is one of the transportation functions of blood?

• Protects against pathogens

• Transports nutrients, hormones, heat, and waste products

• Protects against blood loss

• Produces leukocytes

Answer explanation

One of the key transportation functions of blood is to transport nutrients, hormones, heat, and waste products throughout the body, ensuring that cells receive essential substances and can eliminate waste effectively.

Noah, Avery, and Liam are learning about blood in science class. Which component of blood acts as the superhero, protecting their bodies from invading pathogens?

• Platelets

• Red blood cells

• Leukocytes and plasma proteins

• Oxygen

Answer explanation

Leukocytes, or white blood cells, are crucial for the immune response, protecting the body against pathogens. Plasma proteins also play a role in immune functions, making 'Leukocytes and plasma proteins' the correct choice.