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BIOS 255 WEEK 6 QUIZ FINAL EXAM (Latest Update 2025 / 2026) Anatomy and Physiology IV with Lab | Questions & Answers | 100% Correct | Grade A – Chamberlain

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BIOS 255 WEEK 6 QUIZ FINAL EXAM (Latest Update 2025 / 2026) Anatomy and Physiology IV with Lab | Questions & Answers | 100% Correct | Grade A – Chamberlain

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BIOS 255 WEEK 6 QUIZ FINAL EXAM
(Latest Update ) Anatomy and
Physiology IV with Lab | Questions &
Answers | 100% Correct | Grade A –
Chamberlain

1. Which blood component transports oxygen?
r. r. r. r.




A. Plasma
r.




B. Platelets
r.




C. White blood cells
r. r. r.




D. Red blood cells
r. r. r.




Correct Answer: D r. r.




Rationale: Red blood cells contain hemoglobin which binds and
r. r. r. r. r. r. r. r.




carries oxygen.
r. r.




2. Which blood component helps in clotting?
r. r. r. r. r. r.




A. White blood cells
r. r. r.




B. Red blood cells
r. r. r.




C. Platelets
r.




D. Plasma r.




Correct Answer: C r. r.




Rationale: Platelets aggregate at injury sites to form blood clots.
r. r. r. r. r. r. r. r. r.

,3. Which heart chamber receives deoxygenated blood from the
r. r. r. r. r. r. r. r.




r. body?

A. Left atrium
r. r.




B. Right atrium
r. r.




C. Left ventricle
r. r.




D. Right ventricle
r. r.




Correct Answer: B r. r.




Rationale: Right atrium collects blood from the systemic
r. r. r. r. r. r. r.




circulation.
r.




4. Which heart chamber pumps oxygenated blood to the body?
r. r. r. r. r. r. r. r. r.




A. Right ventricle
r. r.




B. Left atrium
r. r.




C. Left ventricle
r. r.




D. Right atrium
r. r.




Correct Answer: C r. r.




Rationale: Left ventricle pumps oxygen-rich blood into the aorta.
r. r. r. r. r. r. r. r.




5. Systolic pressure measures:
r. r. r.




A. Heart relaxation
r. r.




B. Heart contraction
r. r.




C. Average pressure
r. r.




D. Pulse pressure
r. r.




Correct Answer: B r. r.

,Rationale: Systolic pressure is recorded during ventricular
r. r. r. r. r. r.




contraction.
r.




6. Diastolic pressure measures:
r. r. r.




A. Heart contraction
r. r.




B. Heart relaxation
r. r.




C. Mean pressure
r. r.




D. Pulse pressure
r. r.




Correct Answer: B
r. r.




Rationale: Diastolic pressure occurs when ventricles relax.
r. r. r. r. r. r.




7. Which blood vessels carry blood away from the heart?
r. r. r. r. r. r. r. r. r.




A. Veins
r.




B. Arteries
r.




C. Capillaries
r.




D. Lymph vessels
r. r.




Correct Answer: B
r. r.




Rationale: Arteries transport blood from the heart to organs.
r. r. r. r. r. r. r. r.




8. Which blood vessels return blood to the heart?
r. r. r. r. r. r. r. r.




A. Veins
r.




B. Arteries
r.




C. Capillaries
r.




D. Lymph vessels
r. r.

, Correct Answer: A r. r.




Rationale: Veins carry blood back to the heart.
r. r. r. r. r. r. r.




9. Plasma mainly transports:
r. r. r.




A. Oxygen
r.




B. Hormones and nutrients
r. r. r.




C. Antibodies only
r. r.




D. Platelets
r.




Correct Answer: B r. r.




Rationale: Plasma carries nutrients, hormones, and waste products.
r. r. r. r. r. r. r.




10. White blood cells are responsible for:
r. r. r. r. r. r.




A. Oxygen transport
r. r.




B. Immune defense
r. r.




C. Clotting
r.




D. Hormone transport
r. r.




Correct Answer: B r. r.




Rationale: WBCs fight infections and provide immunity.
r. r. r. r. r. r.




11. Anemia is caused by:
r. r. r. r.




A. Excess RBC
r. r.




B. Low RBC or hemoglobin
r. r. r. r.




C. High WBC
r. r.




D. Platelet deficiency
r. r.

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