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WorksheetsBody Systems
Total questions: 30
Worksheet time: 3600secs
Name
Class
Date
1.
Pepsin and trypsin are two of the digestive enzymes that break down protein. A group of students studied the pH requirements of these enzymes. The graph shows the results. The students found that pepsin functions best in an acidic environment and trypsin functions best in a neutral environment.
Based on their observations, pepsin most likely aids in digestion in which part of the human body?
Based on their observations, pepsin most likely aids in digestion in which part of the human body?
a)
Large Intestines (colon)
b)
Small Intestines
c)
Mouth
d)
Stomach
2.
What two human systems work together to provide the body cells with a constant supply of oxygen while removing carbon dioxide waste products?
a)
Nervous and Endocrine
b)
Muscular and Skeletal
c)
Respiratory and Circulatory
d)
Excretory and Integumentary
3.
When a person is suddenly cut by a sharp object, a nervous impulse is sent along a sensory neuron to the spinal cord. The impulse is immediately transmitted through motor neurons to produce a response.
Which of the following correctly identifies and describes this response?
Which of the following correctly identifies and describes this response?
a)
It is a conditioned response that occurs only to prevent injury.
b)
It is a learned response that does not occur in infants and small children.
c)
It is a voluntary response that is initiated only after the impulse has been carried to the relevant area of the brain.
d)
It is a reflex response that causes various muscles to contract in order to move away from an object.
4.
H1N1 flu is highly contagious viral infection caused by the influenza A (H1N1) virus. The symptoms of H1N1 flu are listed in the box below. An antiviral agent administered within 48 hours of the appearance of symptoms can reduce the severity of the illness.
Why is it important to administer the antiviral agent to an infected person within 48 hours of the appearance of symptoms?
Why is it important to administer the antiviral agent to an infected person within 48 hours of the appearance of symptoms?
a)
The H1N1 virus is dormant in cells.
b)
The H1N1 virus replicates quickly.
c)
The H1N1 virus does not mutate.
d)
The H1N1 virus is transmitted through a vector host, such as a mosquito.
5.
Toxoplasmosis is an infection producing brain lesions caused by the parasitic protozoan Toxoplasma gondii. Mice with their gonads (reproductive organs) removed are more resistant to T. gondii and develop very few lesions on their brain tissue. The graph shows the results of a scientific study of normal adult mice infected with T. gondii.
Which systems most likely interact and cause the severity of infections to vary?
Which systems most likely interact and cause the severity of infections to vary?
a)
Muscular and Skeletal
b)
Immune and Endocrine
c)
Excretory and Respiratory
d)
Nervous and Integumentary
6.
A person infected with the human immunodeficiency virus (HIV) may not have any symptoms for a period of time.
During this period the virus affects the body by doing which of the following?
During this period the virus affects the body by doing which of the following?
a)
The virus damages immune cells while using their machinery to produce copies of itself.
b)
The virus produces toxins that weaken the immune cells and prevent them from reproducing.
c)
The virus uses nutrients meant for immune cells to fuel its own cellular respiration.
d)
The virus changes the identity of the nucleotides of immune cells to prevent the immune system from functioning normally.
7.
The human digestive system is approximately 900 cm long. Food is moved through the digestive tract primarily by –
a)
Bile produced by the pancreas
b)
The enzymes amylase and pepsin
c)
Hydrochloric acid in the stomach
d)
Smooth Muscular contractions
8.
The diagram shows the internal feedback mechanism that maintains blood-calcium (Ca2+) homeostasis.
If a person has a blood calcium (Ca2+) level of 8 mg/100 mL of blood, which of the following mechanisms does the body use to maintain blood-calcium homeostasis?
If a person has a blood calcium (Ca2+) level of 8 mg/100 mL of blood, which of the following mechanisms does the body use to maintain blood-calcium homeostasis?
a)
The kidneys take up more Ca2+ and release vitamin D.
b)
The bones release Ca2+.
c)
The intestines increase reabsorption of Ca2+.
d)
All of the above.
9.
Severe acute respiratory syndrome (SARS) is an illness caused by a coronavirus. Symptoms including a high fever, headaches, and body aches typically occur two to seven days after infection by the virus. SARS is more serious in elderly patients.
This information suggests that the reproductive cycle of SARS virus is –
This information suggests that the reproductive cycle of SARS virus is –
a)
Lytic, because the virus causes respiratory illness
b)
Lysogenic, because the virus is a coronavirus
c)
Lytic, because of the quick onset of symptoms after infection
d)
Lysogenic, because the virus primarily affects older people
10.
Which of the following functions at the same organizational level as the kidney in the human excretory system?
a)
Skeleton
b)
Urinary bladder
c)
Epithelial tissue
d)
A squamous cell
11.
Which of the following correctly describes an interaction that occurs between two body systems of a rabbit that helps the rabbit outrun a pursuing coyote?
a)
The skeletal system releases additional calcium, and the circulatory system retains more sodium in the blood to provide muscles with ions for contraction.
b)
The digestive system increases the rate of digestion, and the excretory system ceases to provide tissues with more nutrients.
c)
The respiratory system increases the breathing rate, and the circulatory system increases blood pressure to provide tissues with more oxygen.
d)
The endocrine system releases hormones that prepare the immune system to deal with possible injuries.
12.
A photograph of a virus is shown.
The projection on the surface of this virus allow the virus to –
The projection on the surface of this virus allow the virus to –
a)
Move inside a host cell
b)
Attach to a host cell
c)
Control a host cell’s DNA
d)
Signal other viruses to infect a host cell
13.
The outermost layer of plant stems in dicotyledons consists of epidermal cells and guard cells that surround openings called stomata. The epidermal cells are usually covered with a waterproof layer that provides protection from injury and water loss. The stomata allow gas exchange.
The epidermal cells and the stomata have functions similar to those of which two human body systems?
The epidermal cells and the stomata have functions similar to those of which two human body systems?
a)
Integumentary and Respiratory
b)
Skeletal and Muscular
c)
Cardiovascular and Skeletal
d)
Cardiovascular and Integumentary
14.
Health-care workers are exposed to many different types of pathogenic and non-pathogenic microorganisms.
Which body systems work together to protect the body from pathogens?
Which body systems work together to protect the body from pathogens?
a)
Muscular and Vascular
b)
Digestive and Excretory
c)
Circulatory and Immune
d)
Endocrine and Reproductive
15.
The osmoregulation process is shown.
This process is an example of which of the following?
This process is an example of which of the following?
a)
The role of the endocrine system in increasing oxygen content of red blood cells
b)
Control of urine production by the parasympathetic nervous system
c)
Maintenance of homeostasis by a feedback mechanism
d)
Disruption of homeostasis by exercise
16.
How do the circulatory system and the respiratory system depend on one another?
a)
Oxygen collected by the respiratory system is carried throughout the body by the circulatory system
b)
Solid wastes collected by the circulatory system are carried throughout the body by the respiratory system
c)
Nutrients collected by the respiratory system are carried throughout the body by the circulatory system
d)
Carbon dioxide collected by the circulatory system is carried throughout the body by the respiratory system
17.
Which sequence shows the pathway that food takes in the digestive system?
a)
Stomach, esophagus, large intestines, small intestines
b)
Esophagus, stomach, large intestines, small intestines
c)
Stomach, esophagus, small intestines, large intestines
d)
Esophagus, stomach, small intestines, large intestines
18.
Animal body systems often coordinate their actions to carry out specific functions for the whole animal.
Which of these correctly describes the interaction of two biological systems for a specific purpose in the human body?
Which of these correctly describes the interaction of two biological systems for a specific purpose in the human body?
a)
A
b)
B
c)
C
d)
D
19.
Which list shows different levels of organization within a population ordered from least to most complex?
a)
Cell, organism, organ, tissue
b)
Cell, tissue, organ, organ system
c)
Cell, organism, tissue, organ system
d)
Cell, tissue, organism, organ
20.
The diagram shown illustrates some structures of the skin.
A substance that blocks structure A would directly interfere with –
A substance that blocks structure A would directly interfere with –
a)
Cellular Respiration
b)
Storage of Urea (urine)
c)
Dehydration of a human
d)
Body temperature regulation
21.
Models of the human immunodeficiency virus (HIV) and an animal cell are shown.
What is the difference in the function of the glycoprotein structures of an HIV virion and the cilia of an animal cell?
What is the difference in the function of the glycoprotein structures of an HIV virion and the cilia of an animal cell?
a)
The
glycoprotein structures are used for attachment, and the cilia are used to move
fluids surrounding the cell.
b)
The
glycoprotein structures are used to obtain nutrients, and the cilia are used to
secrete proteins.
c)
The
glycoprotein structures are used to provide physical support for the viral
envelope, and the cilia strengthen the cell membrane.
d)
The
glycoprotein structures are used for defense, and the cilia are used for
locomotion.
22.
Which of the following pairs provides structural support for a human?
a)
Skin
and blood
b)
Bones
and muscles
c)
Spine
and heart
d)
Brain
and nerves
23.
When a cyclist rides up a steep hill, the cyclist’s circulation and breathing rate increase, allowing a greater amount of oxygen to reach the cyclist’s muscles. In order to generate energy from this extra oxygen during cellular respiration, skeletal muscles must contain a greater number of a certain cell part than other tissues.
Which of the following cell parts is more numerous in skeletal muscle than in other tissues?
Which of the following cell parts is more numerous in skeletal muscle than in other tissues?
a)
Golgi
bodies
b)
Lysosomes
c)
Ribosomes
d)
Mitochondria
24.
Which body system’s primary function is the continuation of the species?
a)
Digestive
b)
Nervous
c)
Reproductive
d)
A. Excretory
25.
The diagram shows part of one of the many feedback loops required to maintain homeostasis in the human body.
This diagram suggests that which of the following could cause a low red-blood-cell count?
This diagram suggests that which of the following could cause a low red-blood-cell count?
a)
The growth of new bone tissue
b)
Chronic kidney disease
c)
Decreased levels of metabolic waste
d)
An increased breathing rate
26.
Cold sores are caused by the herpes simplex virus type 1.
A company that wants to develop antiviral drugs would ask a research immunologist to study –
A company that wants to develop antiviral drugs would ask a research immunologist to study –
a)
The mechanism used by the virus to infect cells
b)
How closely related the virus is to cold viruses
c)
The metabolism of the virus
d)
Meiosis in the virus
27.
When the level of carbon dioxide in the blood is too high, the excess carbon dioxide reacts with water and produces carbonic acid. The carbonic acid causes the blood pH to become more acidic. When the blood pH becomes too acidic, chemoreceptors in the brain instruct the body to react and maintain homeostasis in blood pH.
Which of these responses by the body would eliminate the excess carbon dioxide and help maintain homeostasis in blood pH?
Which of these responses by the body would eliminate the excess carbon dioxide and help maintain homeostasis in blood pH?
a)
Increasing
the body temperature by shivering
b)
Increasing
glucose levels in the blood
c)
Breathing
more deeply and frequently
d)
Decreasing
the heart rate
28.
An information pamphlet in a health clinic describes an interaction between body systems.
Which statement identifies the body systems that are directly involved in the interaction described and explains how they accomplish the interaction?
Which statement identifies the body systems that are directly involved in the interaction described and explains how they accomplish the interaction?
a)
The nervous system produces hormones that stimulate the ovum, and the circulatory system moves the ovum into the uterine tube.
b)
The circulatory system supplies the uterine wall with oxygenated blood, and the immune system prevents damage to the ovum.
c)
The reproductive system produces the ovum, and the muscular system causes the migration of the ovum by peristaltic contractions.
d)
The
excretory system expels the ovum from the ovary, and the nervous system causes
the contractions of the smooth tissues of the uterine wall.
29.
In the process of deamination, the liver converts amino acids to compounds that can be used in energy metabolism. The liver removes the amino groups from amino acids to produce urea. Then the urea is removed from the body as urine.
During this process, the liver works in conjunction with which body system?
During this process, the liver works in conjunction with which body system?
a)
Endocrine
b)
Excretory
c)
Nervous
d)
Respiratory
30.
Coracias garrulus is a blue bird with an orange-brown back. The offspring of this bird have an effective defense mechanism. The young birds vomit and cover themselves in a foul-smelling orange liquid when they sense a threat by predators.
Which two systems alert the young bird to the danger and help produce the vomit it uses as a defense?
Which two systems alert the young bird to the danger and help produce the vomit it uses as a defense?
a)
Nervous
and digestive systems
b)
Integumentary
and muscular systems
c)
Immune
and respiratory systems
d)
Excretory
and reproductive systems
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