Questions and answers about cellular respiration in animals and plants. What does aerobic mean?
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This KS3 Science quiz takes a second look at respiration. Breathing provides oxygen for the process of releasing energy in living cells through cellular respiration. In animals and plants, cellular respiration is mainly aerobic. That means that oxygen is involved.
The other material that is required for aerobic cellular respiration is glucose. This is provided by digestion and is transported to body cells dissolved in the blood plasma. The oxygen is carried to body cells by the red blood cells. During cellular respiration, the glucose and oxygen react chemically to produce carbon dioxide and water, both of which need to be excreted from the body. The reaction provides the energy that keeps cells alive.
When you exercise, cellular respiration increases to provide your body with more energy.
To get more oxygen and glucose to your cells, your heart beats faster to pump more blood around your body and you breathe faster. To inhale, your chest muscles and diaphragm are used to increase the volume of your thoracic cavity. This reduces the pressure inside your lungs and air flows in from the outside through your windpipe. This is kept open and in a tubular shape by rings of cartilage which stop it collapsing in on itself.
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1.
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The diaphragm is ....... |
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| [ ] |
a lining of the lungs |
| [ ] |
a muscle which connects the ribs |
| [ ] |
a sheet of muscle under the lungs |
| [ ] |
the windpipe |
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2.
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When we inhale which one of the following is NOT correct? |
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| [ ] |
More space is formed in the thorax (volume increases) |
| [ ] |
The air pressure in the chest (thorax) increases |
| [ ] |
The diaphragm contracts |
| [ ] |
The rib muscles contract |
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3.
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When we exhale which one of the following is NOT correct? |
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| [ ] |
The volume of the thorax decreases |
| [ ] |
The air is forced out of the lungs |
| [ ] |
The diaphragm relaxes |
| [ ] |
The rib muscles contract |
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4.
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The trachea (windpipe) is kept open because it is contains rings made from ....... |
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| [ ] |
bone |
| [ ] |
capillaries |
| [ ] |
cartilage |
| [ ] |
muscle |
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5.
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Oxygen is transported to all parts of the body by ....... |
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| [ ] |
blood plasma |
| [ ] |
dissolving in water |
| [ ] |
red blood cells |
| [ ] |
white blood cells |
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6.
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Which two substances are needed for aerobic cellular respiration to take place? |
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Glucose and carbon dioxide |
| [ ] |
Glucose and water |
| [ ] |
Oxygen and glucose |
| [ ] |
Oxygen and water |
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7.
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Which of the following are the products of cellular respiration? |
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Energy, carbon dioxide and water |
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Energy, glucose and carbon dioxide |
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Energy, oxygen and glucose |
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Energy, oxygen and water |
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8.
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Cellular respiration occurs in ....... |
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| [ ] |
only cells in the arms and legs |
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only heart cells |
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only muscle cells |
| [ ] |
all cells |
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9.
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Which of the following is NOT true about the effect of exercise? |
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| [ ] |
Breathe more quickly |
| [ ] |
Heart beats faster |
| [ ] |
Less oxygen and glucose get to the muscles |
| [ ] |
Pulse rate increases |
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10.
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Which of the following statements is FALSE? |
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| [ ] |
Carbon dioxide diffuses into blood plasma from cells. |
| [ ] |
Carbon dioxide diffuses into the alveoli from the blood. |
| [ ] |
Carbon dioxide dissolves in white blood cells. |
| [ ] |
Carbon dioxide is transported in the bloodstream to the lungs. |
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1.
|
The diaphragm is ....... |
|
| [ ] |
a lining of the lungs |
| [ ] |
a muscle which connects the ribs |
| [x] |
a sheet of muscle under the lungs |
| [ ] |
the windpipe |
|
|
|
2.
|
When we inhale which one of the following is NOT correct? |
|
| [ ] |
More space is formed in the thorax (volume increases) |
| [x] |
The air pressure in the chest (thorax) increases |
| [ ] |
The diaphragm contracts |
| [ ] |
The rib muscles contract |
|
|
|
3.
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When we exhale which one of the following is NOT correct? |
|
| [ ] |
The volume of the thorax decreases |
| [ ] |
The air is forced out of the lungs |
| [ ] |
The diaphragm relaxes |
| [x] |
The rib muscles contract |
|
|
|
4.
|
The trachea (windpipe) is kept open because it is contains rings made from ....... |
|
| [ ] |
bone |
| [ ] |
capillaries |
| [x] |
cartilage |
| [ ] |
muscle |
|
|
|
5.
|
Oxygen is transported to all parts of the body by ....... |
|
| [ ] |
blood plasma |
| [ ] |
dissolving in water |
| [x] |
red blood cells |
| [ ] |
white blood cells |
|
|
|
6.
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Which two substances are needed for aerobic cellular respiration to take place? |
|
| [ ] |
Glucose and carbon dioxide |
| [ ] |
Glucose and water |
| [x] |
Oxygen and glucose |
| [ ] |
Oxygen and water |
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7.
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Which of the following are the products of cellular respiration? |
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| [x] |
Energy, carbon dioxide and water |
| [ ] |
Energy, glucose and carbon dioxide |
| [ ] |
Energy, oxygen and glucose |
| [ ] |
Energy, oxygen and water |
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8.
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Cellular respiration occurs in ....... |
|
| [ ] |
only cells in the arms and legs |
| [ ] |
only heart cells |
| [ ] |
only muscle cells |
| [x] |
all cells |
|
|
|
9.
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Which of the following is NOT true about the effect of exercise? |
|
| [ ] |
Breathe more quickly |
| [ ] |
Heart beats faster |
| [x] |
Less oxygen and glucose get to the muscles |
| [ ] |
Pulse rate increases |
|
|
|
10.
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Which of the following statements is FALSE? |
|
| [ ] |
Carbon dioxide diffuses into blood plasma from cells. |
| [ ] |
Carbon dioxide diffuses into the alveoli from the blood. |
| [x] |
Carbon dioxide dissolves in white blood cells. |
| [ ] |
Carbon dioxide is transported in the bloodstream to the lungs. |
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