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Worksheets7th Grade Life Science Dig.Uri.Nrv.
Total questions: 34
Worksheet time: 20mins
Name
Class
Date
1.
Which of the following organs IS part of the digestive system?
a)
Stomach
b)
Lungs
c)
Large Intestine
2.
True or False: As you chew food it is mixed with saliva?
a)
False
b)
True
3.
When your body breaks down food into nutrients _____________ digestion takes place.
a)
Physical
b)
Emotional
c)
Chemical
d)
Electrical
4.
Amino acids are the smaller molecules that make up chains that together form ____________.
a)
Proteins
b)
Bmino acid
c)
Fats
d)
Carbohydrates
5.
Which answer best defines the digestive system?
a)
A group of organs that work together to break down food.
b)
Made up of the large intestine, small intestine, and bladder.
c)
A group of tissues that together to make up the stomach.
d)
A group of organs that work together to cook your food.
6.
True or False: The four parts of the digestive system that food does NOT pass through are the gall bladder, pancreas, salivary glands, and liver.
a)
True
b)
False
7.
Saliva changes complex ____________ into ____________ which are easier to digest.
a)
molecules, sugars
b)
carbohydrates, simple sugars
c)
carbohydrates, amino acids
d)
simple sugars, turtles
8.
Which muscle acts as the facilitator to push food into your pharynx (throat)?
a)
Cheeks
b)
Jaw
c)
Larynx
d)
Tongue
9.
Hydrochloric acids and ____________ are produced by glands in the stomach.
a)
Enzymes
b)
Amino Acids
c)
Bmino Acids
d)
Electrolytes
10.
What is Chyme?
a)
Chime, just spelled differently.
b)
What food becomes before it enters the stomach.
c)
Soupy mixture that food becomes as it moves out of the stomach.
11.
What does the pancreas produce?
a)
pancakes
b)
chyme
c)
hydrochloric acids and enzymes
d)
hormones/insulin to regulate blood sugar
12.
Which of the following is NOT a job of the liver?
a)
storing bile
b)
storing nutrients
c)
breaking up fats
d)
breaking down toxins
13.
Which part of the digestive system DOES store bile?
a)
liver
b)
gall bladder
c)
stomach
d)
pancreas
14.
What does the liver serve to break down in the body?
a)
alcohol and drugs
b)
my will
c)
the border wall
d)
enzymes and fatty acids
15.
What is fiber and can you digest it?
a)
A type of cereal and Maybe
b)
Another name for cellulose and Yes
c)
Another name for cellulose and No
d)
the things that come in spindle form during mitosis and Absolutely
16.
What is the scientific term for removing waste from the body?
a)
disposal
b)
excretion
c)
waste removal process
17.
True or False: The urinary system serves to remove waste from your blood.
a)
False
b)
True
18.
Which three systems work to excrete materials from your body?
a)
skeletal, cardiovascular, urinary
b)
integumentary, muscular, respiratory
c)
respiratory, urinary, integumentary
d)
skeletal, muscular, nervous
19.
How many kidneys does a person normally have? How many do they need to survive?
a)
2, 1
b)
1, 3
c)
2, 2
d)
1, 1
20.
True or False: The waste product that contains nitrogen formed when cells use protein for energy is called urea.
a)
True
b)
False
21.
A large artery brings blood into each ____________ during the process of blood filtering through them.
a)
eye
b)
muscle
c)
kidney
d)
stomach
22.
Why does your body need to excrete as much water as it brings in?
a)
True
b)
To maintain a balance in water levels
c)
So you don't drown
d)
To disrupt homeostasis
23.
If normal kidney function is disrupted and kidney disease occurs, what most likely happened?
a)
Nephrons were damaged
b)
homeostasis has been achieved
c)
nephrons are intact and operating properly
d)
Water levels in the body are too low
24.
What makes up the central nervous system?
a)
Brain and heart
b)
heart and lungs
c)
spinal cord and heart
d)
brain and spinal cord
25.
True or False: Nerve cells specialized to receive and conduct electrical impulses are called neurons.
a)
False
b)
True
26.
____________, are electrical messages that may travel as fast as 150 meters per second and as slow as 0.2 meters per second.
a)
pulses
b)
axons
c)
impulses
d)
reactions
27.
Identify correctly in the same order:
1. contains cell organelles and nucleus
2. allows the neuron to receive information
3. has branches that allow info to pass to other cells
1. contains cell organelles and nucleus
2. allows the neuron to receive information
3. has branches that allow info to pass to other cells
a)
1. cell body, 2. dendrite, 3. axon
b)
1. axon, 2. cell body, 3. dendrite
c)
1. dendrite, 2. axon, 3. cell body
28.
Neurons that send impulses from the brain and spinal cord to other systems are called ____________.
a)
dendrites
b)
axons
c)
neurons
d)
motor neurons
29.
True or False: Nerves may contain the axons of both sensory and muscle neurons.
a)
True
b)
False
30.
What is the largest organ of the central nervous system?
a)
brain
b)
spinal cord
c)
heart
d)
skin
31.
Most memories are stored in the ____________.
a)
cerebellum
b)
cerebrum
c)
medulla
d)
medulla oblongata
32.
The right hand is controlled by the ____________ hemisphere of the cerebrum in the brain.
a)
right
b)
central
c)
back
d)
left
33.
____________ controls your body's involuntary processes while the ____________ keeps track of your body's position.
a)
cortex, medulla
b)
cerebrum, left hemisphere
c)
medulla, cerebellum
34.
This part of the skeletal system protects the spinal cord...
a)
ribs
b)
tibia
c)
vertebrae
d)
sternum
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