BIOL 032-Human Physiology 71-75) For questions #71 to #75. MATCH each question w

Question

BIOL 032-Human Physiology 71-75) For questions #71 to #75. MATCH each question with the corresponding description (A-E). 71) Hypertonic solutions 72) 1M NaCi 73) Isotonic solutions 74) 1 M MgCl 75) Hypotonic solutions A. Cells will gain water B. 2 Osm C. No change to cell volume D. 3 Osm E. Cells will lose water 76-80) For questions #76 to "80, MATCH each question with the corresponding description (A-E). 76) Glucocorticoids 77) Norepinephrine 78) Mineralocorticoids 79) Epinephrine 80) Androgens A. Peptide hormones B. Catecholamines C. Steroid hormones D. Eicosanoids E. Proteinaceous hormones 81-85) For questions #81 to #85, MATCH each question with the corresponding description (A-E). 81) Acetylcholine 82) Glycine 83) Serotonin 84) GABA 85) ATP A. Examples of monosaccharides B. Promoting EPSP formation at axon hillocks C. Examples of fatty acids D. Promoting IPSP formation at axon hillocks E. Examples of monoglycerides

Explanation / Answer

71. In the hypertonic solutions, the cell will lose water as the higher solute concentration surrounding cells pulls water out of the cells. Hence the answer is

71-E

72. 1M NaCl is 1 mole of NaCl dissolved to a final volume of 1 liter in water, in the solution NaCl will completely ionize to Na+ and Cl- in water.

The total osmolarity of a solution is = added osmolarity of individual particles in solution.

Hence diluting 1 mole of NaCl to a final volume of 1 liter in water gives 1 mole of Na+ and 1 mole of Cl-.

Thus, the concentration of the same NaCl solution can be described 2 osmolar.

Hence the right answer is,

72-B

73. Isotonic solutions have the same osmolarity as the cells. So no change will happen to the cell volume.

So, the answer is

73-C

74. 1M MgCl2 is equal to 3 osm.

Hence the right answer is

74-D

75. Hypotonic solutions have lesser osmolarity than the cells. So, fluid will enter inside of the cell and cause it to swell.

Hence the right answer is:

75-A

76. Glucocorticoids are a group of steroid hormones

So, the correct answer is

76-C

77. Norepinephrine is a catecholamine that functions in the brain and body as a hormone and neurotransmitter.

So, the correct answer is

77-B

78. So, the correct answer is

78-C

79. Epinephrine is a peptide hormone.

So, the correct answer is

79-A

80. Androgens are also steroid hormones

So, the correct answer is

80-C

81. Excitatory postsynaptic potential (EPSP) is a type of postsynaptic potential and are mediated by the neurotransmitter acetylcholine.

So the answer to this question is

81-B

82. glycine is a neurotransmitter involved in inhibitory postsynaptic potential (IPSP).

82-D

83.Serotonin also induces Excitatory postsynaptic potential (EPSP)

83-B

84. GABA is also involved in inhibitory postsynaptic potential (IPSP).

84-D

85. ATP is an energy source which is used to drive reactions.

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