| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.46 |
| Score | 0% | 69% |
Which of these does not contain oxygenated blood?
pulmonary vein |
|
aorta |
|
left ventricle |
|
right atrium |
To provide oxygen to the body, blood flows through the heart in a path formed by the right atrium → right ventricle → lungs → left atrium → left ventricle → body. When blood enters the right side of the heart it is deoxygenated. It enters the left side of the heart oxygenated after traveling to the lungs.
During digestion, the kidneys filter substances from the blood. Which of the following is not filtered by the kidneys?
minerals |
|
fats |
|
water |
|
salt |
Chemical waste like excess water, minerals, and salt are filtered from the blood by the kidneys and secreted into the urine. Urine is transported from the kidneys to the bladder through ureters.
Minerals, vitamins, and fiber are:
carbohydrates |
|
macronutrients |
|
micronutrients |
|
proteins |
Minterals, vitamins, and fiber are micronutrients while proteins, carbohydrates, and fats are macronutrients.
The __________ is a system of muscles that allows breathing.
diaphragm |
|
pulmonary |
|
bronchioles |
|
trachea |
The diaphragm is a system of muscles that allows breathing. During inhalation, the diaphragm expands and air rushes in to fill the space created. Then, during exhalation, the diaphragm contracts and forces the air back out.
An element in the physical state of __________ maintains a constant volume but their shape depends upon the shape of their container.
solid |
|
plasma |
|
gas |
|
liquid |
In the liquid state, molecules flow freely around each other and exist at a higher temperature range than the same substance in a solid state. Liquids maintain a constant volume but their shape depends upon the shape of their container.