Transport Test

Which of the following is a characteristic of mature red blood cells?

• They have a nucleus to control cell functions.

• They can divide to control cell functions.

• They have a lifespan of approximately 120 days.

• They lack hemoglobin for oxygen transport.

A person with O- blood type lacks which of the following? A. Agglutinogens on red blood cells

• Agglutinogens on red blood cells

• Anti-B antibodies

• Rhesus antigens

• Both A and C

The metal ion responsible for oxygen binding in hemoglobin is

• Sodium

• Potassium

• Calcium

• Iron

The right side of the heart pumps deoxygenated blood to the

• Brain

• Body

• Lungs

• Liver

The left ventricle must generate more force than the right ventricle because

• It pumps blood to the entire body

• It receives oxygen-poor blood

• It only pumps to the lungs

• It has thinner walls

The main function of serous fluid in the pericardial cavity is to

• Carry oxygen

• Reduce friction during heart contractions

• Lubricate blood vessels

• Provide ions for muscle contractions

Which sequence correctly describes the process of the heart pumping blood?

• Electrical signal → mechanical event → pressure change → blood movement

• Mechanical event → electrical signal → blood movement → pressure change

• Electrical signal → blood movement → mechanical event → pressure change

• Mechanical event → pressure change → electrical signal → blood movement

Both cardiac and skeletal muscle share which characteristic?

• Involuntary contractions

• Branched fibers

• Ability to generate their own action potentials

• Striated structure

How do AEDs work during cardiac emergencies?

• They restart a heart with no electrical activity

• They shock the heart to stop and reset abnormal rhythms

• They supply oxygen directly to heart tissue

• They stimulate heart muscle contractions

Tags

NGSS.HS-PS3-5

The sinoatrial (SA) node is responsible for

• Controlling blood vessel resistance

• Initiating the heart's electrical impulses

• Pumping oxygenated blood

• Carrying blood away from the heart

Tags

NGSS.HS-LS1-3