It has been thought that many diseases now associated with aging are related to malfunctioning
mitochondria. Why are the mitochondria so important to all cells?
a. They produce energy in the form of ATP.
b. They generate heat to keep the body warm.
c. They are the source of all human disease.
d. They are extremely large.
e. They are located only in vital organs.
A
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A protein is tightly associated with the plasma membrane and it can be isolated by treating the membrane with a strong detergent. What type of membrane protein is this?
A. A peripheral membrane protein B. An integral membrane protein C. Either an integral or a peripheral membrane protein D. Neither an integral nor a peripheral membrane protein
Lactate fermentation transfers the electrons and hydrogen ions carried by NADH directly to ____
a. acetaldehyde b. pyruvate c. carbon dioxide d. oxygen e. myoglobin
If blood donor type “Z” is Rh+ and first-time blood
recipient “Z” is Rh-, __________ and __________ will result. a. no agglutination; Rh antibody formation b. no agglutination; no Rh antibody formation c. agglutination; Rh antibody formation d. agglutination; no Rh antibody formation e. none of these
Which two heterotrophic organisms most commonly derive nutrition from endosymbiotic relationships with photosynthetic protists?
1. ciliates 2. slime molds 3. parabasalids 4. reef-building coral animals 5. foraminiferans A) 4 and 5 B) 2 and 4 C) 3 and 4 D) 2 and 3 E) 1 and 2