Download a. skeletal system

Cells and Body Systems Exam
Name _______________ Number _____
1. An organism can only be seen through a microscope. Which is most likely true of that organism?
a. It is a plant
b. It is an animal
c. It is multicellular
d. It is single-celled
2. Which must a single-celled and multi-celled organism both be able to do?
a. Hunt
b. Mate
c. Get nutrients
d. Talk to each other
3. Carlo is reading a book about bacteria. Which statement will Carlo most likely read in his book?
a. Bacteria have one cell that performs many functions
b. Bacteria have one cell that performs a single task
c. Bacteria have many cells and each perform many tasks
d. Bacteria have many cells and each performs a single task
4. In which way are multicellular organisms similar?
a. All of their cells transport food
b. All of their cells have the same job
c. All have cells that work together to keep the organism alive
d. All have one cell that meets all the basic needs of the organism
5. Ameba and bacteria are both single-celled organisms. What do they most likely have in common?
a. Both fungi and bacteria are large organisms.
b. Both fungi and bacteria can carry out all life functions in one cell.
c. Both fungi and bacteria need sunlight and nutrients from the soil to be able to grow
d. Both fungi and bacteria are highly specialized to do only one job so they must work with
other cells to obtain food.
6. What is a major organ of the circulatory system?
a. Brain
b. Heart
c. Liver
d. Stomach
7. Which system protects the cardiovascular system?
a. Skeletal system
b. Nervous system
c. Digestive system
d. Circulatory system
8. Why is the digestive system important?
a. It transports blood that cells need.
b. It provides oxygen that cells need
c. It provides nutrients that cells need to produce energy
d. It carries carbon dioxide and oxygen away from the body.
9. How do the muscular and skeletal systems work together to help the body?
a. They provide blood to the body
b. They provide nutrients to the body
c. The provide structure and movement to the body
d. They provide oxygen and carbon dioxide to the body
10. Which best describes the role of the respiratory system?
a. It helps people stand upright
b. It helps people eat and digest different foods
c. It helps people transport blood throughout their body
d. It helps people breathe in oxygen and breathe out carbon dioxide.
11. Which body system carries signals to and from the brain?
a. Respiratory
b. Circulatory
c. Nervous
d. Skeletal
12. Which statement would most likely be found in an article about multi-celled organisms like
plants?
a. Plants have a simple structure
b. Plants contain only one cell that performs all functions
c. Plants do not need to eat, remove waste or reproduce.
d. Plants contain many specialized cells that perform different functions
13. Which two human body systems work closely together to distribute nutrients from food
throughout the body?
a. Muscular and skeletal
b. Digestive and circulatory
c. Circulatory and respiratory
d. Skeletal and digestive
14. The circulatory system transports cell waste through the bloodstream. Which is the best example
of another system that removes waste from the body?
a. The respiratory system releases carbon dioxide
b. The skeletal system produces new red blood cells
c. The muscular system moves the body around.
d. The nervous system sends signals from the brain to the muscles
15. What roles do the muscular and respiratory systems serve in the body when someone lifts
weights?
a. The muscular system provides oxygen to the body, while the respiratory system allows a
person to lift the weights.
b. The muscular system provides nutrients to the blood, while the respiratory system
provides sweat to cool the body.
c. The muscular system allows a person to lift the weights, while the respiratory system
provides oxygen to the body.
d. The muscular system provides sweat to cool the body, while the respiratory system
provides nutrients to the blood.
16. Which is the best example of a single celled organism?
a. amoeba
b. insect
c. fish
d. worm
17. Which example best shows structures that make up the digestive system in the
human body?
a. heart, blood, vessels
b. nose, trachea, lungs
c. brain, spinal cord, nerves
d. esophagus, stomach, intestines
18. Which system of the human body provides protection to most of the major
organs?
a. skeletal system
b. circulatory system
c. respiratory system
d. muscular system
19. A scientist is trying to decide whether an organism is unicellular or multicellular.
Which information would help the scientist most to make her decision?
a. size of the cells of the organism
b. what the organism eats
c. how many types of cells are in the organism
d. how fast the organism grows
20. Which body system processes foods into a usable source of energy?
a. circulatory
b. digestive
c. nervous
d. skeletal