HOMEOSTASIS MATCHING REVIEW
Matching
Match each item with the correct statement below.
a. ectotherm
d. deamination
b. positive feedback
e. glomerulus
c. reabsorption
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____
____
____
____
34.
35.
36.
37.
38.
nutrients move from renal tubules to blood vessels
increases in intensity of response to stimulus
removal of amino group from amino acid
depend on air temperature to regulate body
capillary bed which filters the blood
Matching
Match each item with the correct statement below.
a. growth hormone
d. thyroxine
b. insulin
e. testosterone
c. epinephrine
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____
____
____
____
36.
37.
38.
39.
40.
stimulates the development of sperm
increases the absorption of glucose by cells
regulates the metabolism
regulates the development of long bones
produced in times of stress
Matching
Match each item with the correct statement below.
a. axon
d. schwann cells
b. dendrites
e. synapses
c. myelin sheath
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____
____
____
____
34.
35.
36.
37.
38.
special glial cells
receive information from sensory receptors or nerve cells
extension of the cytoplasm of a nerve cell
acts as an insulator for the neuron
small spaces between neurons
Modified True/False
Indicate whether the sentence or statement is true or false. If false, change the identified word or phrase to make the
sentence or statement true.
____
1. Large amounts of hormone are required to cause change. _________________________
____
2. Insulin is produced in a healthy person when blood sugar is low. _________________________
____
3. People with diabetes feel tired because of low levels of glucose in the blood.
_________________________
____
4. Long-term stress hormone is associated with the hormone cortisol, which increases the level of amino
acid in the blood. _________________________
____
5. Low levels of thyroxine in the blood is the only reason for weight gain. _________________________
____
6. Calcitonin and parathyroid hormone regulate calcium levels in the blood. _________________________
____
7. Insulin secretion must be decreased during times of stress to keep blood glucose level high.
_________________________
____
8. A gymnast could take growth hormone to gain a competitive edge. _________________________
____
9. Large levels of testosterone in the blood deactivate the hypothalmus, which in turn stops the production of
leutinizing hormone (LH). _________________________
____ 10. As follicles develop in the ovary, estrogen concentration in the blood decreases.
_________________________
____
NERVOUS SYSTEM
1. Information from your brain is moved to your leg muscles by motor neurons.
_________________________
____
2. Myelin sheath is very important for the transferring of information along the medulla.
_________________________
____
3. Electrochemical messages are carried by the movement of ions through the nerve membrane.
_________________________
____
4. When the nerve cell is excited, it becomes more permeable to potassium ions than sodium ions.
________________________________________
____
5. There are more nerve networks leading to the legs and arms than to the thumb and fingers.
_____________________________________________
____
6. A connection between the hypothalamus and the pituitary gland unites the nervous system with the
endocrine system. _________________________
____
7. Endorphins attach to receptors on SG cells, and the pain sensation is not felt.
_________________________
____
8. Alcohol enhances the action of inhibitory synapses. _________________________
____
9. After a few minutes in a bright room, the pupils stop decreasing in size. This is an example of sensory
adaptation. _________________________
____ 10. A cataract occurs when the retina in the eye becomes opaque. _________________________
chapter 8 Chemical Signals Maintain Homeostasis
Answer Section
MODIFIED TRUE/FALSE
1. ANS: F, small amounts
REF: K/U
OBJ: 8.1
2. ANS: F, blood sugar is high
LOC: HS1.01
REF: K/U
OBJ: 8.1
3. ANS: F, low levels of insulin
LOC: HS1.04
REF:
4. ANS:
LOC:
5. ANS:
K/U
OBJ: 8.2
T
HS1.04
F, one reason
LOC: HS1.04
REF: K/U
OBJ: 8.2
K/U
T
HS1.04
T
HS1.04
T
HS3.02
T
HS1.02
F, increases
LOC: HS1.01
REF: K/U
OBJ: 8.3
REF: K/U
OBJ: 8.4
REF: K/U
OBJ: 8.4
REF: K/U
OBJ: 8.5
6.
7.
8.
9.
10.
REF:
ANS:
LOC:
ANS:
LOC:
ANS:
LOC:
ANS:
LOC:
ANS:
REF: K/U
OBJ: 8.3
OBJ: 8.5
LOC: HS1.02
Chapter 9 How Nerve Signals Maintain Homeostasis
Answer Section
MODIFIED TRUE/FALSE
1. ANS: T
LOC: HS1.01
2. ANS: F, axon
REF:
3. ANS:
LOC:
4. ANS:
REF: K/U
K/U
OBJ: 9.1
LOC: HS1.01
T
REF: K/U
HS1.01
F, sodium ions than potassium ions
REF: K/U
OBJ: 9.2
LOC: HS1.01
5. ANS: F, thumb and fingers than to the arms and legs
OBJ: 9.1
OBJ: 9.1
REF:
6. ANS:
LOC:
7. ANS:
LOC:
8. ANS:
REF:
9. ANS:
LOC:
10. ANS:
K/U
OBJ: 9.3
T
HS1.01
T
HS1.04
F, does not enhance
LOC: HS1.01
REF: K/U
OBJ: 9.3
REF: K/U
OBJ: 9.4
K/U
T
HS1.06
F, lens
LOC: HS1.06
REF: K/U
OBJ: 9.5
REF: K/U
OBJ: 9.4
OBJ: 9.5
LOC: HS1.04