What is the function of granzymes?
A. Activate caspases that destroy the cell's DNA
B. Activate complement
C. Polymerize cell membranes to form a large pore
D. Bind to the plasma membrane of the host cell
Answer: A
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Carbon dioxide is more soluble in water than is oxygen. Which gas has the higher rate of diffusion?
A. Oxygen B. Carbon dioxide C. Both will have the same rate of diffusion.
The affinity of hemoglobin for O2 is decreased in rapidly metabolizing tissues.
Answer the following statement true (T) or false (F)
Answer the following statements true (T) or false (F)
1. An organ is a group of different types of cells that function together to perform a specific function. 2. A system is a group of organs arranged in such a way that they can perform a more complex function. 3. Stem cells may be able to be used for tissue or organ engineering. 4. The skin is the most important organ of the integumentary system. 5. Hair, nails, and teeth are called accessory structures of the skin.
Respiration is
A. making ATP. B. the entire process of gas exchange between the atmosphere and cells. C. circulating blood to tissues. D. breathing.