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
You might also like to view...
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
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
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.
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