26. Osmosis is responsible for a. equalizing concentrations of fluids b. absorpt

Question

26. Osmosis is responsible for a. equalizing concentrations of fluids b. absorption of sodium c. waste excretion d. hormone regulation 27. Which of the following is a way that humans lose bodily water a. urination b. fecal matter c. breathing d. sweating 28. Lesions in the lateral hypothalamus were correlated with a. aphagia; inhibition of eating b. adipsia; inhibition of eating c. hyperphaia; extreme over eating d. aphagia; extreme over eating which is defined as 29. Which of the following is false in regard to Bulimia Nervosa a. there is binge eating b. there may purging involved c. more common in males d. there are several theories that attempt to explain bulimia 30. When a dog began to salivate at the sound of a bell; the bell would be fall under which category of Pavlovian Classical Conditioning? a. Unconditioned stimulus (UCS) b. Unconditioned response (UCR) c. Conditioned stimulus (CS) d. Conditioned response (CR) 31. Secondary reinforcers: a. are intrinsically reinforcing due to their very nature b. come to control responding due to their association with other reinforcers c. are such things as water, food, avoidance of pairn d. usually involve a form of latent learning ovw's experiment,removing the UCS and only presenting the CS will eventualily lead to: 32. In Pavlov' a. motivation b. reinforcement c. extinction d. learning 33. A greater quality of reinforcement has which of the following effects upon performance? a. generally decreases the amount of performance b. generally improves performance c. does not alter performance d. makes performance more resistant to extinction

Explanation / Answer

26)a)equalizing concentration of fluids.Osmosis is a process of movement of solutes present in the solvent against the concentration gradient across a semipermeable membrane.

Absorption of sodium,waste excretion and hormonal regulation processes occur in kidney during the process of urinary excretion and absorption of ions in proximal and convoluted renal tubules of kidney.

27)answer-a)urination--It is a process of removal of body water.Fecal matter is a solid waste matter.Breathing is method of respiration, and sweating is a method of removal of salts from body in the form of liquid water droplets.

28)answer-b)adipsia,inhibition of eating .It was observed while performing experiments in rats with hypothalamic lesions.

29)answer--c)the statements is false mentioned as --it is common in males. It is common in females with loss of appetite and eating disorders.

30)answer--c)conditional stimulus--The experiment of pavlov in which, the dog salivates upon hearing the sound of bell ringing is an example of conditioned stimulus of experimental observation whereas the salivation in dog on seeing food is an example of unconditioned stimulus.

31)answer-b)come to control responding due to their association with other reinforcers for example primary reinforcement like food and water.

32)answer-c)extinction--on removing the unconditional stimulus and presenting only the conditional stimulus will lead to extinction behavior in dog.

33)answer-a)generally decreases the amount of performance.The reinforcement includes the experimental delivery of drugs to rats which decreases their performance after primary reinforcement with various varieties of food along with experimental observation of rats with ringing bell sound and hammer and lever in cages.

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