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13 Questions

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Leukocytes: White Blood Cells Quiz

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Questions and Answers

Which of the following components are present in leukocytes?

Mitochondria and chloroplasts

Ribosomes and endoplasmic reticulum

Nuclei and organelles (correct)

Cell wall and central vacuole

What distinguishes leukocytes from other formed elements?

Being unable to move

Having a rigid cell wall

Lacking nuclei and organelles

Possessing nuclei and organelles (correct)

How are leukocytes different from red blood cells and platelets?

They have nuclei and organelles (correct)

They do not contain any genetic material

They lack a plasma membrane

They are only found in certain body regions

Which type of leukocyte has two nuclear lobes and is very phagocytic?

Neutrophils Signup and view all the answers

What is the primary cause of infectious mononucleosis, also known as 'mono' or the 'kissing disease'?

Viral infection Signup and view all the answers

Which leukocyte differentiates into macrophages?

Monocytes Signup and view all the answers

Which leukocyte matures in the thymus?

T lymphocytes Signup and view all the answers

What regulates platelet formation?

Thromboxane A2 Signup and view all the answers

Which phase of homeostasis involves the transformation of prothrombin to active enzyme thrombin?

Coagulation Phase 2 Signup and view all the answers

What is the role of anticoagulants in blood?

Inhibit coagulation Signup and view all the answers

Which leukocyte disorder is characterized by an overproduction of abnormal WBC?

Leukemias Signup and view all the answers

What triggers the intrinsic pathway of coagulation?

Presence of negatively charged surfaces Signup and view all the answers

What happens during clot retraction in homeostasis?

Draws ruptured blood vessel edges together Signup and view all the answers