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WorksheetsHuman Body (First Five Systems)
Total questions: 27
Worksheet time: 21mins
Name
Class
Date
1.
The chewing and grinding of food into smaller pieces is an example of...
a)
mechanical digestion
b)
chemical digestion
c)
peristalsis
d)
absorption
2.
Which is NOT a function of the digestive system?
a)
To rid the body of undigested food
b)
Absorb nutrients for energy & growth
c)
Break down nutrients from food
d)
Pump blood around the body
3.
Enzymes (chemicals) in your saliva help break down food while chewing. This is:
a)
mechanical digestion
b)
chemical digestion
c)
peristalsis
d)
absorption
4.
What type(s) of digestion happen in the stomach?
a)
Mechanical
b)
Chemical
c)
Both
d)
Neither
5.
Which is the correct function of the circulatory system?
a)
The system that fights disease so the body stays healthy.
b)
The system that transports materials in the blood to and from the cells
c)
Breaks down food into smaller pieces and absorbs those nutrients into the body.
d)
Provides shape and structure for the body.
6.
Which statement best describes the heart?
a)
Protects organs and produces red blood cells.
b)
Generates heat.
c)
Breaks down food into nutrients.
d)
A pump which moves the blood.
7.
Which is NOT a function of the circulatory system?
a)
Deliver O2 and nutrients to cells
b)
Remove CO2 and wastes from cells
c)
Break down carbohydrates into glucose
d)
Transport other materials through body
8.
What does blood do?
a)
Carries water to and from cells
b)
Carries oxygen to cells and carbon dioxide away
c)
Carries nutrients and hormones to cells
d)
All of the above
9.
What is the main function of the excretory system?
a)
To remove liquid and gaseous wastes from the body
b)
To strengthen skeletal muscles
c)
To protect the nervous system
d)
To bring oxygen to body cells
10.
Under normal conditions, which of the following is found in urine?
a)
blood cells
b)
protein
c)
glucose
d)
urea
11.
Which excretory organ eliminates water and some chemical wastes in perspiration?
a)
lungs
b)
skin
c)
liver
d)
kidneys
12.
What term do scientists use to describe the chemical process in which oxygen and glucose react to release energy inside body cells?
a)
cellular respiration
b)
exhaling
c)
breathing
d)
inhaling
13.
What is the function of the kidneys?
a)
eliminate carbon dioxide
b)
supply oxygen to body cells
c)
remove urea and excess water
d)
exchange gases in the alveoli
14.
The process of removing wastes from the body's metabolism is:
a)
absorption
b)
respiration
c)
excretion
d)
filtration
15.
Organs of excretion that maintain homeostasis include the kidneys, lungs, skin, and
a)
bronchus
b)
diaphragm
c)
bladder
d)
liver
16.
As an electrical nerve impulse crosses a synapse, it becomes
a)
electrical
b)
chemical
c)
it stays the same
d)
liquid
17.
When stepping on a nail, what type of neuron takes that signal TO the central nervous system?
a)
interneurons
b)
motor
c)
sensory
d)
receptors
18.
When stepping on a nail, what type of neurons take the response to the muscles?
a)
motor
b)
interneurons
c)
sensory
d)
not neurons, muscle tissue sends the response
19.
The nervous system is composed of the:
a)
heart, brain, kidneys
b)
lungs, liver, stomach
c)
brain, spinal cord, nerves
d)
eyes, pancreas, veins
20.
In the endocrine system, what is a target cell?
a)
A cell that a hormone is specifically directed towards
b)
A cell that produces several different types of hormones
c)
A cell that secretes digestive juices including enzymes
d)
A cell that produces electrical messages
21.
What is the endocrine system?
a)
A system that senses the hormone levels in the blood.
b)
A set of organs that controls all other organs.
c)
A group of glands that work together with the nervous system to coordinate all body functions.
d)
A system that uses electrical signals to send messages throughout the body to target cells.
22.
True or False
Endocrine glands secrete hormones into the bloodstream.
Endocrine glands secrete hormones into the bloodstream.
a)
True
b)
False
23.
What is a gland?
a)
Group of muscles that work together.
b)
A tissue used to connect bone to bone.
c)
An organ that produces and secretes chemical messages.
d)
A system used to digest foods.
24.
What is another word that can be used to describe "homeostasis"?
a)
STABLE
b)
EQUAL
c)
COMPLETE
d)
CORRECT
25.
If the environment gets cold, humans will often shiver in order to:
a)
keep body temperature the same as the external temperature.
b)
decrease body temperature.
c)
increase body temperature.
d)
regulate blood pressure.
26.
If the calcium in your blood decreases below the normal set point, a gland in the brain will sense the decrease and send a chemical message to your bones. Your bones will release calcium into the blood, bringing blood calcium levels back up. This is an example of a:
a)
positive feedback loop
b)
negative feedback loop
c)
Both types of feedback loops
d)
Neither type of feedback loop
27.
Failure to maintain homeostasis could result in:
a)
lack of internal balance.
b)
death.
c)
difficulty carrying on metabolism.
d)
all of the above.
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