The electron transport chain forms a concentration gradient for H+, which diffuses through ATP synthase complexes, producing ____.

A) ATP
B) FAD
C) G3P
D) NADH
E) pyruvate

Whenever the body is re-exposed to an allergen, the binding of IgE antibodies causes ____.

A) degranulation and inflammation
B) the release of antihistamines
C) the suppression of the inflammatory response
D) the production of clonal cells
E) fever

Vitreous humor

A) Blood vessels enter and the optic nerve exits here
B) A small yellow spot near the center of the posterior retina
C) The portion of the retina with the greatest visual acuity
D) A jelly-like substance in the posterior cavity of the eye
E) The fluid that fills the anterior cavity of the eye

A written pledge or statement by an employer outlining standards that it will abide by in conducting business is known as a corporate code of conduct.

When people aspirate liquids or food into their lungs, the liquid or food most commonly enters the right lung rather than the left lung. This is because the right primary bronchus is ________ than the left primary bronchus.

A) longer
B) thinner
C) more vertical
D) less ciliated
E) shorter

Sexual reproduction can be grouped into how many distinct stages?

A) 1
B) 2
C) 3
D) 4
E) 5

Which part of a muscle twitch occurs when the sarcomere distance is decreasing?

A) latent period
B) contraction period
C) relaxation period
D) refractory period
E) expansion period

If a child has blood type O, he or she could not have been produced by which set of parents?

A) type A mother and type B father
B) type A mother and type O father
C) type AB mother and type O father
D) type O mother and type O father
E) type O mother and type B father

The thin layer of meristematic cells located between xylem and phloem is referred to as the:

A) apical meristem.
B) collenchyma.
C) cork cambium.
D) vascular cambium.
E) pith.