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23 Cards in this Set
- Front
- Back
What is the definition of a cell? |
A cell is a basic unit of life, from which larger structures such as tissue and organs are made. |
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What is a unicellular organism? |
An organism, such as bacteria, that consists of a single cell |
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What is a multicellular organism? |
An organism that consists of many cells |
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What are the causes, symptoms, and treatments of kwashiorkor? |
Causes: protein and amino acids deficiency Symptoms: Pot belly, loss of muscle mass, thinning hair, red patches of skin, unable to grow |
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What are the causes, symptoms, and treatments of rickets? |
Causes: lack of vitamin D and calcium |
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What are the causes, symptoms, and treatments of anemia? |
Causes: blood loss |
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What are the causes, symptoms, and treatments of night blindness? |
Causes: vitamin A deficiency Symptoms: trouble adapting and seeing in the dark, blurry vision in the dark |
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What are the causes, symptoms, and treatmentsof scurvy? |
Causes: vitamin C deficiency |
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What are the causes, symptoms, and treatments of beri-beri? |
Causes: vitamin B1 deficiency |
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What is diffusion? |
Diffusion is the net movement of particles from an area of high concentration to an area of low concentration |
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What is a partially permeable membrane? |
It is a cell membrane that is permeable to small molecules (e.g water) |
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What is osmosis? |
Osmosis is the net movement of water molecules across a partially permeable membrane from an area of high water concentration to an area of low water concentration. |
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What are carbohydrates made up of? |
Carbon, hydrogen and oxygen ONLY |
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What are the types of carbohydrates? |
Monosaccharides: Simple sugars (glucose) |
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What are fats made up of? |
Carbon, hydrogen, nitrogen
Fats are also known as lipids |
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What are proteins made up of? |
Carbon, hydrogen, nitrogen, oxygen, sulphur ONLY |
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What are proteins? |
Proteins are a group of large, complex polymer molecules, made up of long chains of amino acids |
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What is the process for a starch test? |
Put food in a dropping tile, then add 2 drops of iodine |
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What color would be visible if starch is present in a food test? |
If starch is present, there will be a blue/black color |
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What is the product of carbohydrates breaking down? |
Glucose |
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What is the product of fat breaking down? |
Fatty acids and glycerol |
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What is the product of protein breaking down? |
Amino acids |
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What color would be visible if proteins is present in a food test? |
If protein is present, there will be a purple/violet color |