Hemicellulose contains chains of xylose molecules
____________________ Indicate whether the statement is true or false.
T
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Keratins are considered to be obligate heterodimers in that the dimers forming their filaments must contain one __________ and one __________ subunit?
Fill in the blank(s) with the appropriate word(s).
What is the role of the oxygen molecules required for aerobic respiration?
a. To form ATP b. To produce CO2 c. To accept electrons directly from either NADH or FADH2 d. To accept the low energy electrons at the end of the electron transport chain e. To store high energy electrons to pass to complex I of the electron transport chain
The protozoan (Cyclospora/Cryptosporidium/Echinococcus) can occasionally be transmitted from person to person.
Fill in the blank(s) with the appropriate word(s).
You had a cold last month and you caught another one this month from your brother. Why could this
happen?
a. Memory cells were not formed as a response to the first cold. b. The antibodies formed as a response to the first cold were degraded. c. The two cold viruses are different. d. Your macrophages are not working properly. e. Your antigen-presenting cells do not recognize the second cold virus.