Electrons are smaller than protons, are negatively charged, and orbit the nucleus
Indicate whether the statement is true or false
TRUE
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What makes neurons different from other cells?
Membrane proteins serve many functions. One of the functions is transportation of substances across the membrane. If a cell biologist placed cells into an environment in which a chemical has been added that blocks the function of only carrier proteins, the process that will be affected is
A. active transport. B. osmosis. C. simple diffusion. D. phagocytosis. E. pinocytosis.
Sucrose (table sugar) is a disaccharide composed of glucose and fructose. Glycogen is a polysaccharide composed of many glucose subunits. Which of the following fermentation tubes would you expect to produce the greatest gas volume over a 1-hour period? Why?
(a) Tube 1: (b) Tube 2: (c) Tube 3:
Nitrogen fixation is used to form ATP, which is then used for energy reserves.
Answer the following statement true (T) or false (F)