The life-threatening condition that may develop during a type I hypersensitivity reaction is called
A) anaphylaxis.
B) septic shock.
C) stroke.
D) toxic shock.
Answer: A
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How do arbuscular mycorrhizae (AM) help plants obtain more nutrients from the soil?
A) Byproducts of AM metabolism serve as primary nutrient sources for the plants. B) The AM increase the total surface area to absorb more nutrients. C) The hyphae develop as specialized nodules that directly produce nutrients for the plant. D) Signaling molecules in the plant are passed to the AM to initiate electron flow, which is in turn used to create ATP.
Plant roots that are in a horizontal position grow down because:
A. Cells on the upper side elongate more than those on the lower side. B. Auxins are stimulating cells on the lower side to elongate more. C. Auxins are being pulled to the upper side. D. Auxins are having no influence on this process. E. Statoliths are pushing auxins to the upper side.
Which process allows bile to aid the digestion of lipids, especially triglycerides?
a. dehydration b. phosphorylation c. emulsification d. polymerization
Ion gradients across the membrane drive numerous cellular functions.
Answer the following statement true (T) or false (F)