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WorksheetsSCIENCE GRADE 9 FIRST QUARTER
Total questions: 14
Worksheet time: 14mins
Which of the following is responsible in the distribution of nutrients, dissolved gases and materials into the different parts of the body?
Digestive System
Respiratory System
Circulatory System
Immune System
Which of the following statement is TRUE about arteries?
Some of the arteries are thin-walled that can withstand low pressure of the blood.
All arteries carry blood away from the heart to the different parts of the body.
The deoxygenated gas is brought by all the arteries which will be eliminated through respiration.
The valves are present in these structures that are inferior towards the heart.
The coordination between the heart and lungs is observed in maintaining the oxygen blood levels in human body. This shows what type of circulation?
Coronary Circulation
Systemic Circulation
Pulmonary Circulation
Arterior Circulation
Which of the following body organs do not belong in the group based on their coordinated function?
Trachea
Alveoli
Bronchioles
Capillaries
In respiratory system, gas exchange occurs in alveoli, sac-like structures. An analogous function is also found in which part of circulatory system?
Vena Cava
Veins
Capillaries
Arteries
Anne already finished her exercise. Which of the following mechanisms does not satisfy with the meaning of exhalation?
Ribs move out
Air moves into the lungs
Chest space becomes larger
Diaphragm moves up
It is the thickest of the heart's chambers and its responsible for pumping oxygenated blood to the tissues all over the body.
Right Ventricle
Left Ventricle
Right Atrium
Left Atrium
What is the main important role of bicuspid and triscuspid valve as one of the main parts of the heart?
They serve as the doors and prevent the back flow of the flood from the start.
They pump blood towards the lungs for the exchange of the gases.
They maintain the internal temperature of the heart in different pressures.
They filter the entrance and exit of the different substances in the heart.
The main artery of the body supplyong oxygenated blood to the circulatory system.
Arterioles
Aorta
Vena Cava
Venules
What will happen if cilia do not function properly?
The filtration of the entrance of dirt and germs from the body will not be conducted.
The dissolution of non-essential materials will not be done.
The entrance and exit of air in and out of the respiratory system will not be highly regulated.
The exchnage of gases inside the alveoli will be improperly functioned.
The blood in the pulmonary artery branches is _________ but relatively _____________.
low in oxygen; high in carbon dioxide
high in carbon dioxide; low in oxygen
both high levels in oxygen and carbon dioxide
both levels in oxygen and carbon dioxide
Why does the heart beating producing "lub dub" sound?
Because the muscles of the heart are contracting.
Because the heart valves are opening and closing.
Because the blood are moving in and out of the heart.
Because the blood are moving in and out of the lungs.
What specific gas is needed by the body and usually involved during the inhalation process?
Carbon dioxide
Hydrogen
Helium
Oxygen
Blood is one of the main organ of the circulatory system that circulates in different parts of the body. Which of the following is NOT a function of it?
Carries waste products away
Balances the internal temperature of the body
Controls balance of chemicals in body
Produces acidic or basic substances at some chemical reactions
