Describe the factors that affect chemical reaction rates
What will be an ideal response
Temperature increases kinetic energy and therefore the force of molecular collisions. Particle size: smaller particles move faster at the same temperature and therefore collide more frequently; also, smaller particles have more surface area given the same concentration of reactants. Concentration: the higher the concentration, the greater the chance of particles colliding. Catalysts increase the rate of the reaction at a given temperature. Enzymes are biological catalysts.
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In general, the nervous system is composed of which two types of cells?
1. motor 2. neurons 3. sensory 4. glial 5. associative A) 2 and 4 B) 1 and 3 C) 3 and 5 D) 1 and 2 E) 3 and 4
Which of the following does not occur in the cytosol?
a. replication of chromosomes b. enzymatic regulation of intermediary metabolism c. storage of fat and glycogen d. synthesis of proteins e. glycolysis
Muscles that produce precise, delicate movements have fewer muscle fibers in their motor units compared to muscles made for powerful movements
a. True b. False Indicate whether the statement is true or false
Identify the characteristic(s) of the general adaptation syndrome
a. Mobilization of energy reserves b. Conservation of water and sodium c. Increased systemic vasoconstriction d. All of the above e. None of the above