Clusters of differentiation (CDs) molecules are used to differentiate, classify, and name different cells of the immune system. Where are these molecules located?
A. Nucleus
B. Blood Plasma
C. Endoplasmic Reticulum
D. Cytoplasm
E. Plasma membrane
Answer: E
You might also like to view...
After ingestion by humans, the first category of macromolecules to be chemically digested by enzymes in the mouth is _____
A) proteins B) carbohydrates C) nucleic acids D) minerals
A protist with two flagella where one is wrapped around a transverse groove and the other is draped in a longitudinal groove would be a member of which group?
A. Trypanosome B. Oomycetes C. Dinoflagellate D. Ciliophora
What is true of a fossil that is classified as a "transitional form"?
A. It has all of the traits of its ancestors and all of the traits of its descendants. B. It has some of the traits of its ancestors and all of the traits of its descendants. C. It has all of the traits of its ancestors and some of the traits of its descendants. D. It has some of the traits of its ancestors and some of the traits of its descendants.
Unlike plants, fungi, and bacteria, animal cells cannot resist volume increases in hypotonic environments. This is
because unlike those other organisms, animal cells ____.
a. do not have central vacuoles b. do not have cell walls c. do not have pumps that can actively pump out excess fluid d. are smaller than those other cells and thus cannot handle large increases in volume e. have relatively more solutes