7th Grade Science Unit Test 4 Review Question Preview (ID: 17135)


Part 1 Unit Test 4 Review. TEACHERS: click here for quick copy question ID numbers.

How do the lungs function within the excretory system?
a) the lungs exchange oxygen and carbon monoxide
b) the lungs absorb carbon dioxide from the air
c) the lungs help to release carbon dioxide while absorbing nutrients
d) the lungs exchange oxygen and carbon dioxide and release waste products in cells

Which systems work together to deliver oxygen to the cells of the body?
a) muscular and circulatory
b) skeletal and digestive
c) respiratory and circulatory
d) digestive and respiratory

Which best explains the process of digestion?
a) the body uses energy to make food
b) the body breaks down food to provide nutrients
c) the body breathes air in to supply oxygen to the lungs
d) A mother cuts up her child's steak into smaller pieces so her child won't choke

Which digestive process initiates cellular respiration?
a) eliminating wastes
b) filtering out harmful substances
c) breaking down food into glucose
d) chewing up food into smaller pieces

Which best summarizes organ systems?
a) a group of organelles working together to perform a certain job
b) a group of tissues working together to perform a certain job
c) a group of organs working together to perform a certain job
d) a group of cells working together to perform a certain job

Which function summarizes the excretory system?
a) It removes waste
b) it collects oxygen
c) it attacks diseases
d) it delivers nutrients

How do the respiratory and circulatory systems work together?
a) the respiratory system takes in carbon dioxide while the circulatory system delivers carbon dioxide to the cells
b) the circulatory system takes in carbon dioxide while the respiratory system delivers carbon dioxide to the cells
c) the respiratory system takes in oxygen while the circulatory system delivers oxygen to the cells
d) the circulatory system takes in oxygen while the respiratory system delivers oxygen to the cells

the alternating expansion and relaxation of the artery you feel in your wrist is your
a) pulse
b) coronary artery
c) blood pressure
d) plasma

A soft connective tissue found inside some bones is
a) cytoplasm
b) marrow
c) cartilage
d) osteoperosis

A sharp tap of the reflex hammer to the knee sends a signal up the spinal cord to the brain where the brain interprets and then sends a message to the leg to react. The stimulus in this example is the
a) reflex hammer
b) brain
c) spinal cord
d) leg

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