In the end, the complement system destroys invading bacteria by
A) neutralization.
B) forming a membrane attack complex, which causes the cell to fill with fluid and lyse.
C) agglutination.
D) release of lytic enzymes.
E) phagocytosis.
Ans: B) forming a membrane attack complex, which causes the cell to fill with fluid and lyse.
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The partial negative charge in a molecule of water occurs because _____
A) the oxygen atom donates an electron to each of the hydrogen atoms B) the electrons shared between the oxygen and hydrogen atoms spend more time around the oxygen atom nucleus than around the hydrogen atom nucleus C) the oxygen atom has two pairs of electrons in its valence shell that are not neutralized by hydrogen atoms D) the oxygen atom forms hybrid orbitals that distribute electrons unequally around the oxygen nucleus E) one of the hydrogen atoms donates an electron to the oxygen atom
A trichome is a bacterial cell with three different photosynthetic pigments.
Answer the following statement true (T) or false (F)
____ is the study of body plans and structures
among groups of organisms. a. Embryology b. Molecular archeology c. Evolution d. Comparative morphology e. Composition
Explain how the F0 complex of ATP synthase harnesses the proton-motive force to help synthesize ATP. What would happen if the proton gradient were reversed?
What will be an ideal response?