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D1 Human Nutrition
IB Syllabus
11
Biology
11th Grade
05/22/2015

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Term
What is a nutrient
Definition
a chemical substance found in foods and used in the human body. can be absorbed to give body energy, help strengthen bones or even prevent some diseases.
Term
What are the five essential nutrients for a human diet.
Definition
Essential amino acids
Essential fatty acids
Minerals
Most vitamins
Water
they cannot be synthesized by the body and have to be ingested.
Term
What is the difference between the 11 non-essential amino acids, and the 9 essential amino acids iin the human diet.
Definition
9 amino acids cannot be synthesized in the body because the DNA sequences necessary to make them are not present in the human genome. The 11 amino acids can be synthesized in the body and are called non-essential amino acids.
Term
What is protein deficiency?
Definition
when a person is not getting enough of a certain nutrient, and this causes a health problem.
Term
What is malnutrition
Definition
an imbalance in the diet, which leads to one or more diseases.
Term
What is the sickness Kwashiorkor
Definition
a disease resulting from malnutrition common among children in poorer nations. it is what happens to the first-born child when a second child is born. The mother breastfeeds the younger child first and may not have enough milk for the elder child.
Term
what are the two essential fatty acids in a diet?
Definition
omega-3 and omega-6
Term
Why are essential minerals essential?
Definition
they are essential chemical elements (stimulate chemical reactions to take place/metabolism)
Term
What are vitamins?
Definition
chemically diverse carbon compounds that cannot be synthesized by the body
Term
What is scurvy
Definition
Humans cannot synthesize vitamin C. A variety of symptoms develop as a result of vitamin C deficiency, which are collectively known as scurvy.
Term
Why is vitamin D essential and what happen
Definition
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