Biology Quiz

What is the primary function of the immune system as described in the text?

• To produce hormones

• To protect the body against pathogens

• To regulate body temperature

• To aid in digestion

What percentage of blood volume is fluid known as plasma?

• About 25%

• About 50%

• About 75%

• About 10%

Which type of cells in the blood are primarily responsible for transporting oxygen?

• White blood cells

• Red blood cells

• Platelets

• Plasma cells

What specific role do white blood cells play in the immune system according to the article?

• They transport oxygen.

• They clot blood.

• They fight against pathogens.

• They produce plasma.

Where are stem cells that develop into more specialized cells produced?

• In the skin

• In the liver

• In the bone marrow

• In the heart

What can result from the bone marrow producing too many blood cells?

• Reduced blood pressure

• Decreased heart rate

• High levels of blood cells leading to leukemia

• Enhanced immune response

What is the first line of defense against invaders that make us sick, according to the immune system?

• Adaptive immune response

• Innate immune response

• Cellular immune response

• Passive immunity

What does the adaptive immune response develop in response to?

• General symptoms of illness

• Specific invaders

• All foreign bodies indiscriminately

• Only viruses

What is a potential consequence of immune cells failing to remove "self-reactive" cells?

• Increased energy levels

• Development of autoimmune diseases

• Enhanced ability to fight infections

• Decreased white blood cell count

What is the primary function of adaptive immune cells in the human body?

• To provide immediate response to all pathogens

• To respond to a specific type of invader and replicate upon recognition

• To store information about non-pathogenic cells

• To heal wounds and repair tissues