Which of the following is not a cardinal sign of inflammation?
A) swelling
B) redness
C) fever
D) pain
E) loss of function
Answer: C
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Science is based on
a. faith. b. authority. c. evidence. d. force. e. facts.
Steroid hormones act by
a. interacting with a target cell's DNA. b. activating mitochondria in target cells. c. acting on ribosomes for protein synthesis. d. stimulating mitosis. e. helping glucose into the target cell.
The evolution of membrane-bound organelles and thus compartmentalization within eukaryotic cells likely arose due to all of the following except ________.
A. the need to increase the overall amount of cell membrane to maximize efficiency of transport systems B. the need to increase surface area to maximize those processes that take place in a membrane, such as oxidative phosphorylation C. the need to spatially separate simultaneous processes in order to ensure independent control D. the need to prevent mixing of cellular macromolecules such as proteins and polysaccharides
Which of the following are examples of molecular homologies? Select all that apply.
_____ Use of DNA as an information storage molecule. _____ The lack of an IGF-1 gene in prokaryotes. _____ Similarities among in the metabolic process for the break down of glucose. _____ The biochemical pathways for cellular respiration in plants and animals. _____ The biochemical pathways for photosynthesis in plants and cellular respiration in animals.