THE BLOOD: POST-TEST

During a biology class, William asked, "What are the main substances transported by blood?"

• Salts, gases, fibers, and lipids.

• Oxygen, carbon dioxide, nutrients, hormones, and waste products.

• Glucose, cholesterol, vitamins, and antibodies.

• Water, minerals, proteins, and enzymes.

Nora is studying how blood helps regulate body temperature during her biology class.

• Blood regulates body temperature by releasing hormones into the bloodstream.

• Blood regulates body temperature by adjusting blood flow to the skin.

• Blood helps cool the body by absorbing heat from muscles.

• Blood increases body temperature by storing excess heat.

Aiden is learning about the immune system in his biology class. What role do white blood cells play in blood protection?

• White blood cells protect the body by identifying and attacking pathogens.

• White blood cells help in the digestion of food particles.

• White blood cells are responsible for blood clotting.

• White blood cells primarily transport oxygen throughout the body.

Noah is studying human physiology and wants to know the normal pH range of blood. Can you help him?

• 6.5 to 7.0

• 7.35 to 7.45

• 7.0 to 7.2

• 7.5 to 8.0

Lily is curious about how much of her body weight is made up of blood. Approximately what percentage of body weight does blood constitute?

• 10-12%

• 7-8%

• 3-4%

• 5-6%

During a biology class, Elijah asked, 'What are the two main components of blood?'

• Oxygen and carbon dioxide

• Red blood cells and white blood cells

• Platelets and antibodies

• Plasma and formed elements

During a biology class, Daniel asked, "What is the primary composition of blood plasma?"

• Water, proteins, electrolytes, nutrients, hormones, and waste products.

• Hormones and vitamins only

• Red blood cells and platelets

• Only water and electrolytes

During a biology class, Abigail asked her classmates, 'Can anyone name the three types of formed elements in blood?'

• Plasma, lymph, serum

• Red blood cells, white blood cells, platelets

• Hemoglobin, myoglobin, fibrin

• Neutrophils, eosinophils, basophils

Emma is studying the human body in her biology class. During a discussion, her teacher explains a process that is crucial for maintaining healthy blood. What is this process called?

• Hemopoiesis is the production of blood cells.

• Hemopoiesis is the process of oxygen transport in the blood.

• Hemopoiesis refers to the digestion of nutrients.

• Hemopoiesis is the breakdown of blood cells.

In a science experiment, Scarlett is comparing the viscosity of blood to that of water. What did she find?

• Blood has the same viscosity as water.

• Blood is 3 to 4 times more viscous than water.

• Blood is less viscous than water.

• Blood is 1 to 2 times more viscous than water.