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10 Cards in this Set
- Front
- Back
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Protein molecules are made up of small ‘building blocks’ joined together.
Give the name of these “building blocks”. (1 mark) |
Amino Acids |
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Give the name of the building blocks that can’t be made by the body. (1 mark) |
Essential Amino Acids |
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Meat and fish are both good sources of protein. What is the best source of protein in the meal shown? |
Egg |
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Explain why protein is essential in a persons diet (3 Marks) |
- Essential for growth (body cells , muscles, hair & nails) - Repairing body cells & tissues - Maintenance (production of hormones, enzymes & antibodies) |
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Proteins can be either ‘High Biological Value’ or ‘Low Biological Value’. What is meant by a ‘Low Biological Value’ protein? (1 mark) |
A LBV protein is missing one or more of the essential amino acids we need. |
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Other than soya products, how can a vegan ensure they get the equivalent of ‘High Biological Value’ protein in their diet? (3 marks) |
- They could use protein complimentation - where a mixture of LBV proteins are combined - to provide all of the essential amino acids we need (the equivalent to HBV protein) |
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Give one health risk that can be caused by excessive protein intake (1 mark) |
Excessive protein intake can put pressure on the liver and kidneys (as these help process proteins) |
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Describe three health problems that might be caused by a protein deficiency (6 marks) |
Any three would get you a mark
- stunted growth in children - because less protein means the growth rate is slower and less protein for muscle mass
- hair and nails can get into a poor condition (weak and brittle) - because they don’t grow fast
- wounds may take longer to heal - because the immune system will be less efficient
- oedema (water retention) - a build up of fluid in the body
- kwashiorkor - a disease that causes the stomach to swell |
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The amount of protein someone needs can vary from person to person. Which two groups of people might need more protein in their diet? (2 marks) |
- children - teenagers - pregnant women - women who are breastfeeding - physically active people |
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Name three alternative proteins for a vegetarian diet (3 marks) |
- soya beans - tofu - textured vegetable protein (TVP) - mycoprotein |
