Red algae yield which of these commercial
products?
a. carrageenan
b. nori wrappers for sushi
c. algin
d. agar
e. all EXCEPT algin
Answer: e
You might also like to view...
Match the following items with the correct phrases.
_______1. The width of a typical coccus. _______2. The resolving power of the unaided eye. _______3. The resolving power of the scanning electron microscope. _______4. The resolving power of the transmission electron microscope. _______5. The resolving power of the compound light microscope. a. 0.2 nm b. 20 nm c. 0.2 ?m d. 1 ?m e. 0.2 mm
The conversion of a diamond into graphite is a spontaneous reaction. Why are most women walking around with
diamond rings and not graphite rings?
a. inorganic substances, like diamonds, do not react like organic substances b. the transition state is very stable c. the energy of activation is very high d. the free energy of this reaction is too low e. the free energy of this reaction is too high
The ____ is a Gram-negative bacterium
a. Clostridium b. Staphylococcus c. Streptococcus d. Salmonella e. Lactobacillus
Memory cells are ________ that function in _______
a. macrophages; removing the debris of an infection b. T cells; remembering self-antigen, thus protecting the body's cells c. T cells; determining which B cells will get activated during a second exposure to an antigen d. B cells; retaining the ability to make an antibody used to fight a previous infection e. B cells; remembering where to direct macrophages to fight a local infection