Study Guide
Session:
01a_Homeostasis
Class:
Class 1 to 32
Class Points Avg: 16.12 out of 20.00 (80.59%)
(Includes only students who took assessment)
03, Student
Pad ID:
3
Student ID:
You answered 16 of 17 questions correctly for a percentage of 94%.
1
The structural and functional unit of life is
A
B
C
D
a cell.
an organ.
the organism.
a molecule.
You answered A.
2
The term "homeostasis" refers generally to the
A
B
C
D
organism's
organism's
organism's
organism's
ability to respond to its environment.
maintenace of its internal environment in a state of constancy.
need for food and energy.
requirement to dispose of wastes
You answered B.
3
Homeostasis in the body is controlled primarily by which two organ systems?
A
B
C
D
cardiovascular and integumentary
skeletal and endocrine
nervous and endocrine
cardiovascular and respiratory
You answered C.
4
A graph of blood chloride (Cl1-) levels measured hourly over a course of 5 days
would resemble
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Study Guide continued...
Class Points Avg: 16.12 out of 20.00 (80.59%)
(Includes only students who took assessment)
03, Student
A
B
C
D
a
a
a
a
gently waving line.
straight horizontal line.
line that rises steadily throughout the week.
line that rises gradually, then falls abruptly.
You answered A.
5
A negative feedback mechanism is NOT involved in the control of
A
B
C
D
E
blood sugar levels.
blood calcium levels.
blood clotting.
respiratory rate.
thermoregulation.
You answered C.
6
The hormones, insulin and glucagon, are produced by special cells in the pancreas
where they are secreted into the blood stream. For this reason these special cells
are part of the _____ system
A
B
C
D
circulatory system.
excretory system.
endocrine system.
immune system.
You answered C.
7
This orange butterfly-shaped organ is the
A
B
C
pancreas
pituitary gland
brainstem
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Study Guide continued...
Class Points Avg: 16.12 out of 20.00 (80.59%)
(Includes only students who took assessment)
03, Student
7
This orange butterfly-shaped organ is the
D
thyroid gland
You answered D.
8
Embedded in this orange butterfly-shaped organ are groupings of purple cells.
These are the
A
B
C
D
parathyroid glands
tonsils
beta cells
alpha cells
You answered A.
9
This yellow organ is the
A
B
C
D
liver
pancreas
medulla oblongata
gall bladder
You answered B.
10 This diagram shows how the body regulates the level of
A
B
C
D
the temperature
phosphate in the blood
calcium ions in the blood
sugar in the blood
You answered C.
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Study Guide continued...
Class Points Avg: 16.12 out of 20.00 (80.59%)
(Includes only students who took assessment)
03, Student
11 In the upper half of this diagram, the receptor is (are) the
A
B
C
D
kidneys
parathyroid gland
bone tissue
thyroid gland
You answered D.
12 In the lower half of this picture, the effector(s) is(are)
A
B
C
D
parathyroid hormone
osteoclasts
normal calcium levels
falling calcium levels in the blood
You answered C.
13 In the upper half of this diagram, the stimulus(i) is(are)
A
B
C
D
rising calcitonin levels
rising blood calcium levels
increased excretion of calcium in kidneys
decline in blood calcium levels
You answered B.
14 According to the diagram one way to lower blood glucose levels is
A
B
C
convert the glucose to glycogen
increase breakdown of fats
release glucagon from the pancreas
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Study Guide continued...
Class Points Avg: 16.12 out of 20.00 (80.59%)
(Includes only students who took assessment)
03, Student
14 According to the diagram one way to lower blood glucose levels is
D
increase the liver's synthesis of glucose
You answered A.
15 In the regulatory system that responds to a decline in blood glucose levels, the
receptor(s) is(are) the
A
B
C
D
liver cells
adipose tissue
pancreas' alpha cells
pancreas' beta cells
You answered C.
16 When blood sugar rises above the set point, the effector that lowers blood sugar is
A
B
C
D
insulin
glucagon
glycogen
the pancreas
You answered A.
17 Extra sugar that is removed from the blood is usually stored in the liver and muscles
as
A
B
C
D
fat
amino acids
glycogen
insulin
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Study Guide continued...
Class Points Avg: 16.12 out of 20.00 (80.59%)
(Includes only students who took assessment)
03, Student
17 Extra sugar that is removed from the blood is usually stored in the liver and muscles
as
You answered C.
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