WorksheetsScience 9 Midterm Review
Total questions: 20
Worksheet time: 11mins
The process by which the body acquires oxygen from the atmosphere and eliminates carbon dioxide.
Circulation
Respiration
The pathway of CO2 during external respiration starts
Alveoli
Pharynx
Inhalation and exhalation are what parts of respiration?
Chemical
Mechanical
What does the inhalation process do? Select only two.
diaphragm and intercostal muscles contract
diaphragm contracts by moving upwards
chest cavity to expand
the air pressure inside the lungs increases
What does the exhalation process do? Select only two.
diaphragm relaxes and moves up to its dome-shaped
position
intercostal muscles likewise contracts
chest cavity becomes smaller
the air pressure inside the lungs decreases
What does external respiration do? Select that apply.
Exchange was done in the alveoli and lung capillaries
Carried by respiratory tract
Oxygen has a high concentration in the alveoli
Carbon dioxide has a high concentration in the lung capillaries
What does internal respiration do? Select that apply.
Exchange was done in the body cells
Carried by the circulatory system
Oxygen diffuses from the red blood cells
Carbon dioxide diffuses from the body cells
Cellular respiration occurs in what body cell part?
Cytoplasm
Mitochondria
Nucleus
The circulation of blood between the heart and the cells of the body.
Coronary Circulation
Pulmonary Circulation
Systemic Circulation
The circulation of blood between the heart and the lungs
Coronary Circulation
Pulmonary Circulation
Systemic Circulation
Oxygenated blood enters the left atrium from the lungs before going to the left ventricle.
True
False
Deoxygenated blood enters the right atrium from the body before going to the right ventricle.
True
False
AV node is the pacemaker of the heart.
True
False
The electrocardiogram is the electrical signal through the heart that can be detected by a machine.
True
False
Systole is when the ventricles contract.
True
False
Diastolic is when the ventricles relaxed.
True
False
The average human heart beats about 140 times a minute.
True
False
Heart rate is the percentage number of checking your heart beat.
True
False
When checking the pulse rate, you need to count the beats you feel for 10 seconds.
True
False
When checking the pulse rate, you need to multiply this number by eight to get your heart rate (pulse) per minute.
True
False
