Download Homeostasis Practice Test Name: Date: 1. Which

Homeostasis Practice Test
Name:
1.
Date:
Which statement explains the importance of
maintaining a constant internal environment to
ensure proper enzyme functioning?
A.
Changes in pH and temperature will
cause the enzyme reaction rate to be too
fast.
B.
Temperature and pH determine amino
acid sequences in enzymes.
C.
Changes in pH will change the genetic
instructions of enzymes.
D.
Increasing the temperature and pH can
alter the speci c shape of enzymes.
4.
Base your answers to the following question(s)
on the information and data table below and
on your knowledge of biology.
Five students design an experiment to
answer the question: “How is heart rate
a ected by running?” Two chairs were set up
at di erent ends of a large room. The pulse
rate of each student was taken at rest just
before running. Each of the ve students
ran between the chairs a di erent number of
times. Their pulse rates were taken after
running and the results are shown in the table
below.
E ect of Running on the Heart
Student
2.
Breathing rate is constantly being monitored
and adjusted in the human body, which results
in
A.
the di erentiation of mature body cells
B.
feedback mechanisms removing damaged
cells
C.
modi cation of gene activity in cells
D.
the internal environment being kept within
certain limits
Number of Times the Student Pulse Rate After Running
Ran Between the Chairs
(beats/min)
A
2
B
4
88
96
C
6
104
D
8
112
E
10
120
Explain how the change in heart rate helps to
maintain homeostasis during exercise.
5.
The disease known as malaria may result in a
fever, a decrease in red blood cells, and an
enlarged liver and spleen. These symptoms
are evidence of
A. a disruption of homeostasis
3.
The diagram below represents an activity that
occurs in the human body.
B. a decrease in allergic reactions
C. an increased number of cell organelles
D. hormone destruction
This diagram best illustrates
A.
active transport
B.
maintenance of homeostasis
C.
synthesis of nutrients
D.
di erentiation
page 1
6.
Base your answer to the following question(s)
on the information below and on your
knowledge of biology.
9.
The accompanying diagram represents the
actions of two hormones in the human body.
An investigation is carried out to
determine the e ect of exercise on the
rate at which a person can squeeze a
clothespin.
Muscle fatigue occurs during this activity when
A. carbon dioxide is used up in the muscle
cells
This diagram best illustrates
B. simple sugar is converted to starch in the
muscle cells
A. recombination
C. insertion
B. feedback
D. deletion
C. proteins accumulate in mitochondria in the
muscle cells
D. certain waste products collect in the
muscle cells
7.
10.
The graph below shows the levels of glucose
and insulin in the blood of a human over a
period of time.
The most immediate response to a high level
of blood sugar in a human is an increase in
the
A. muscle activity in the arms
B. blood ow to the digestive tract
C. activity of all cell organelles
D. release of insulin
This graph represents
11.
A. an allergic reaction
What will most likely happen to wastes
containing nitrogen produced as a result of
the breakdown of amino acids within liver cells
of a mammal?
B. an antigen-antibody reaction
A. They will be digested by enzymes in the
stomach.
C. maintenance of homeostasis
D. autotrophic nutrition
8.
B. They will be removed by the excretory
system.
Which phrase does not describe a way the
human body responds to ght disease?
C. They will be destroyed by specialized
blood cells.
D. They will be absorbed by mitochondria in
nearby cells.
A. destruction of infectious agents by white
blood cells
B. production of antibodies by white blood
cells
C. increased production of white blood cells
D. production of pathogens by white blood
cells
page 2
Homeostasis Practice Test
12.
Which situation indicates that a disruption of
homeostasis has taken place?
15.
Which is an example of an e ector?
A. a taste bud of the tongue
A. the presence of hormones that keep the
blood sugar level steady
B. the auditory nerve of the ear
C. the retina of the eye
B. the maintenance of a constant body
temperature
D. a muscle of the arm
C. cell division that is involved in normal
growth
16.
D. a rapid rise in the number of red blood
cells organs in multicellular organisms
Select the process, chosen from the list below,
that is best described by the statement shown.
Results in muscle fatigue and cramping
in humans
13.
Which order of metabolic processes converts
nutrients consumed by an organism into cell
parts?
A. photosynthesis
B. alcoholic fermentation
A. digestion ! absorption ! circulation !
di usion ! synthesis
C. aerobic respiration
D. lactic acid fermentation
B. absorption ! circulation ! digestion !
di usion ! synthesis
17.
C. digestion ! synthesis ! di usion !
circulation ! absorption
D. synthesis ! absorption ! digestion !
di usion ! circulation
14.
What is the role of sensory organs in the
body?
18.
A. the transmission of impulses directly to
e ectors
B. the detection of environmental stimuli
Nerve impulses are carried from the spinal
cord to the muscles of the arm by
A. sensory neurons
C. motor neurons
B. tendons
D. ganglia
The skeleton of the human embryo is made
up primarily of
A. bone
C. cartilage
B. muscle
D. epithelium
C. the conduction of impulses from the spinal
cord
D. the interpretation of impulses from motor
neurons
page 3
Homeostasis Practice Test
Achoo!
Most sneezing bouts are caused by nasal irritation. Viruses, bacteria, and inhaled irritants such as pepper,
dust, and pollen are common causes. In some people, looking at a bright light can cause sneezing; this is
known as the photic response.
Sneezing usually begins when receptors in the interior of the nose are stimulated. A message is carried by
a nerve to a reaction of the midbrain which in turn, stimulates blood vessels to dilate and mucous glands
to increase their activity. Other impulses go to the respiratory center in the medulla, causing it to stimulate
inhalation. As soon as inhalation is complete, muscles encircling the top of the airway of the victim temporarily
constrict. The nose and mouth are momentarily sealed o from the rest of the respiratory passages. Then
the process of exhalation begins. As the diaphragm and abdominal muscles contract, pressure builds until the
seal is forced open and air explodes out in a sneeze.
A sneeze that originates with an irritation of the nose can be explained by this process, but in the case of a
sneeze caused by a bright light, unidenti ed portions of the brain seem to be involved in producing the photic
response. This response appears to be inherited and is present in approximately 20% of the population.
page 4
Homeostasis Practice Test
19.
Irritation of the nasal passages rst results in
23.
A. a forceful exhalation of air through the
mouth
A. production of gastric juices
B. rapid inhalation and exhalation
B. production of saliva
C. irregular contraction and relaxation of the
diaphragm
C. storage of pancreatic juices
D. storage of bile
D. dilation of blood vessels and increased
production of mucus
24.
20.
The removal of a human gallbladder interferes
most directly with the
The impulses involved in sneezing would most
likely follow which pathway
Into which parts of the human digestive
system are digestive enzymes secreted?
A. mouth, esophagus, stomach
A. motor neuron ! interneuron ! sensory
neuron
B. stomach, small intestine, large intestine
C. mouth, stomach, small intestine
B. motor neuron ! sensory neuron !
interneuron
D. esophagus, stomach, large intestine
C. sensory neuron ! interneuron ! motor
neuron
25.
D. sensory neuron ! motor neuron !
interneuron
In humans, the large intestine is the major site
for the
A. completion of lipid digestion
21.
Which part of the human central nervous
system is correctly paired with its function?
B. absorption of water into the bloodstream
C. completion of carbohydrate digestion
A. spinal cord - coordinates learning activities
D. storage of nutrients for future use
B. cerebellum - serves as the center for
re ex actions
26.
C. cerebrum - serves as the center for
memory and reasoning
D. medulla - maintains muscular coordination
22.
Which two structures are directly involved in
locomotion in humans?
27.
A. visceral muscle and brous tendons
B. smooth muscle and ligaments
In the human digestive system, most nutrients
are absorbed into the blood through the lining
of the
A. esophagus
C. small intestine
B. stomach
D. large intestine
In a human, peristalsis occurs in which
organs?
A. salivary gland, esophagus, and stomach
C. skeletal muscle and bones
B. stomach, small intestine, and pancreas
D. cardiac muscle and immovable joints
C. esophagus, stomach, and small intestine
D. esophagus, small intestine, and liver
page 5
Homeostasis Practice Test
28.
Which part of human blood is primarily
responsible for transporting nutrients,
hormones, and wastes?
33.
The breathing rate of a human is regulated by
the
A. concentration of nitrogen in the lungs
A. red blood cell
C. white blood cell
B. plasma
D. platelet
B. pressure of the air in the trachea
C. concentration of carbon dioxide in the
blood
29.
In humans, a function of intercellular uid is to
D. pressure of the blood in the capillaries
A. produce red blood cells
34.
B. serve as a transport medium
30.
Which is a characteristic of lymph nodes?
C. produce white blood cells
A. They carry blood under great pressure.
D. serve as a lter for uric acid
B. They move uids by means of a muscular
pump.
In humans, red bone marrow provides
C. They produce new red blood cells.
D. They contain phagocytic cells.
A. structural support for the body
B. a source of new blood cells
35.
An example of a human response is
C. an attachment site for muscle tissue
A. a stone approaching the eye
D. a site to trap bacteria
B. the buzz of a bee
31.
32.
C. the fragrance of a rose
Filtering dust particles out of the human
respiratory tract is a function of the
A. cilia
C. epiglottis
B. bronchioles
D. alveoli
D. the secretion of a hormone
In humans, the exchange of respiratory gases
occurs within the
A. nose
C. bronchial tubes
B. trachea
D. alveoli
page 6
Homeostasis Practice Test
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Homeostasis Practice Test
05/09/2016
1.
Answer:
D
18.
Answer:
C
2.
Answer:
D
19.
Answer:
D
3.
Answer:
B
20.
Answer:
C
21.
Answer:
C
22.
Answer:
C
23.
Answer:
D
24.
Answer:
C
4.
Answer:
– The heart rate increases, which
transports more oxygen from the lungs
to the muscle cells.
– The heart beats faster and
transports carbon dioxide to the lungs
faster for elimination.
– Increased heart rate removes
wastes from cells more rapidly.
5.
Answer:
A
25.
Answer:
B
6.
Answer:
D
26.
Answer:
C
7.
Answer:
C
27.
Answer:
C
8.
Answer:
D
28.
Answer:
B
9.
Answer:
B
29.
Answer:
B
10.
Answer:
D
30.
Answer:
B
11.
Answer:
B
31.
Answer:
A
12.
Answer:
D
32.
Answer:
D
13.
Answer:
A
33.
Answer:
C
14.
Answer:
B
34.
Answer:
D
15.
Answer:
D
35.
Answer:
D
16.
Answer:
D
17.
Answer:
C