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Seventh Grade
Standard 3, Objective 2
Multiple Choice
a1. Which answer correctly identifies the 5 levels of cell organization from
simplest to most complex?
A. tissue, organs, organ systems, cell, organism
B. organism, organ system, organ, tissue, cell
C. organ system, cell, tissue, organ, organism
D. cell, tissue, organ, organ system, organism
a2. Which answer correctly identifies the 5 levels of cell organization in a dogs
body from simple to most complex?
A. bone cell, bone tissue, femur (thigh bone), skeleton, dog
B. dog, skeleton, femur, bone tissue, bone cell
C. skeleton, bone tissue, bone cell, dog, femur
D. bone tissue, bone cell, femur, skeleton, dog
Use this diagram to answer the next two questions.
a3. Overlapping circles can be used to show
relationships. In this diagram, levels of organization
within living things are shown. If each circle is
made from the smaller circles inside it, what does
circle “W” stand for?
A.
B.
C.
D.
organs
cells
tissues
organ systems
a4. What would circle “Y” be?
A.
B.
C.
D.
organs
cells
tissues
organ systems
b5. The brain is an example of which level of organization in a body?
A.
B.
C.
D.
E.
cell
tissue
organ
organ system
organism
b6. A nerve is an example of which level of organization in a body?
A.
B.
C.
D.
E.
cell
tissue
organ
organ system
organism
b7. The lining of the stomach is an example of which level of organization in a
body?
A.
B.
C.
D.
E.
cell
tissue
organ
organ system
organism
b8. A cow is an example of which level of organization in a body?
A.
B.
C.
D.
E.
cell
tissue
organ
organ system
organism
c9. How do the chambers of the heart and valves between them affect the
circulatory system?
A.
B.
C.
D.
They control the flow of blood to different parts of the body.
They create new blood cells than travel to body tissues.
They allow blood to absorb oxygen and release carbon dioxide.
They store the blood for the times when it is needed.
c10. The lungs are composed of tiny sacs that fill with air during breathing. How
does this tissue help the lungs do their job?
A.
B.
C.
D.
it allows air to contact a large surface
it allows muscles to open and close them.
it allows the lung to pump the air.
it allows the lungs to produce more blood.
c11. Why does the stomach need to be made of muscle tissue?
A.
B.
C.
D.
So liquids do not pool in the intestine.
To give the body strength in the middle.
So it can churn the food and help break it down.
To help the heart pump blood containing food to the body.
d12. Which organ system transfers gasses into and out of the blood?
A.
B.
C.
D.
nervous system
respiratory system
skeletal system
lymphatic system
d13. Which organs collect and excrete cell wastes?
A.
B.
C.
D.
skin and heart
stomach and pancreas
bladder and kidneys
lungs and heart
d14. Which organs breakdown food for cells?
A.
B.
C.
D.
heart, arteries, blood
stomach, intestine, pancreas
nerve, brain, spinal cord
skin, pancreas, skeletal
Essay
1. What is the difference between tissue and organ?
2. Describe how the needs of cells are met by tissues and organs. Give an
example.