During cellular respiration, electrons move through a series of electron carrier molecules. Which of the following statements is true?
A) Molecular oxygen is eventually oxidized by the electrons to form water
B) The carrier molecules are found in the cytoplasm of eukaryotic and prokaryotic cells
C)The electrons release large amounts of energy each time they are transferred from one carrier to another
D) The electrons move from carriers that have more affinity for them to carriers that have less affinity for them
E) Molecular oxygen is reduced when it accepts electrons and forms water
Ans: E) Molecular oxygen is reduced when it accepts electrons and forms water
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Why do prokaryotes not conduct the process of the citric acid cycle?
a. They do not possess mitochondria. b. They do not possess a cytoplasm. c. They do not possess a Golgi body. d. They do conduct the citric acid cycle.
Amoebozoans are heterotrophic protists with cells that lack ____; therefore, they can constantly change shape
a. cell junctions b. a cytoskeleton c. a cell membrane d. a cell wall or pellicle e. pseudopods
Cartilaginous fishes retain __________ in their body, so they do not lose or gain water by osmosis. Fill in the blank(s) with the appropriate word(s)
The measure of the concentration of solutes in a solution is ____
a. tonicity b. osmosis c. hydrostatic pressure d. diffusion e. facilitated diffusion