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20 Cards in this Set
- Front
- Back
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What happens during the process of digestion? |
Food is broken into small molecules. |
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What role does the liver play in digestion? |
It produces bile to break down fats into smaller droplets. |
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What role does the liver play in excretion? |
It breaks down old red blood cells. |
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How does oxygen and carbon dioxide move between the respiratory and excretory systems? |
Oxygen moves from the lungs to the blood. Carbon dioxide moves from the blood into the lungs. |
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Which body system helps the respiratory system move gases between the lungs and the cells of the body? |
circulatory and muscular systems |
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In which part of the digestive system does most of mechanical digestion and some chemical digestion occur? |
stomach |
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Proteins in foods are broken down into amino acids through what process? |
chemical digestion |
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What is present in saliva that begins digestion by breaking down starch? |
enzyme |
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Which human body systems play a direct role in getting oxygen from the air to cells? |
Circulatory, respiratory, muscular |
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What is the role of enzymes in the digestion process? |
To speed up chemical reactions during digestion |
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What is the process by which the endocrine system stops releasing a hormone once the correct level of the hormone is reached? |
Negative feedback |
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What is the role of the endocrine system? |
It regulates both short term and long term activities by adding chemicals directly into the blood stream. |
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What is the role of the female reproductive system? |
To produce eggs, estrogen and nourish a developing baby until birth. |
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The role of the male reproductive system is to produce sperm and which hormone? |
Testosterone |
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You hear a fly near your ear and swat it away with your hand. Which body system is most responsible for this? |
The nervous system |
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Which body system is responsible for fighting pathogens that can cause illness? |
Immune |
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What are the chemical messengers produced by the endocrine system? |
Hormones |
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What do hormones do? |
Hormones turn on, turn off, speed up, slow down the activities of organs and tissues. |
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What is the maintenance of stable internal conditions inside an organism called? |
Homeostasis |
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How does a fever help a body maintain homeostasis? |
A higher temperature may kill pathogens that causes infections |
