Which type of protein is used by cells of the immune system to distinguish normal cells from foreign or infected cells?

A. Anchoring proteins
B. Identity markers
C. Transport proteins
D. Cell adhesion proteins
E. Ligands


Answer: B

Anatomy & Physiology

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Contracting the gastrocnemius muscles to elevate the body on the toes involves a ________ lever

A) first-class B) second-class C) third-class D) fourth-class E) All of the answers are correct.

Anatomy & Physiology

Each complex in the electron transport chain collectively acts as a _____ pump that removes H+ from the mitochondrial matrix and pumps it into the space between the inner and outer mitochondrial membranes

A. proton B. electron C. neutron D. sodium-potassium E. calcium

Anatomy & Physiology

Which cell is incorrectly matched with the characteristic?

A) basophils - have granules containing histamine and heparin B) neutrophils - most abundant white cell C) neutrophils - most difficult to identify D) eosinophils - cytotoxic cells may live only 6-12 hours E) eosinophils - numbers increase with allergies and parasites

Anatomy & Physiology

 The figure illustrates a medial view of bones of the right foot. What does "A" represent?

A. Calcaneus B. Talus C. Tibia D. Metatarsals E. Fibula

Anatomy & Physiology