Nutrients 4.1 to 4.4
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Name the 4 main nutrients.
Carbohydrates, Proteins, Fats and Minerals.
What nutrient is an organic molecule containing carbon, hydrogen and oxygen and is used as a source of energy in organisms?
Carbohydrate.
What nutrients contains carbon, hydrogen oxygen AND nitrogen?
Proteins
Name a simple carbohydrate.
Sugar or glucose
What group od nutrients do fats and oils belong to?
Lipids
True or False. Proteins contain Amino Acids.
True
True or false. Sugars such as glucose are absorbed into the blood quickly and are used for quick energy release.
True
What is this describing… A complex carbohydrate made of many glucose sugar molecules joined together; it is used for long term energy storage.
Starch.
What nutrients are known as being Energy Dense?
Lipids
How does a Humpback whale make good use of Fats and Oils?
It uses it for insulation against the cold water.
What is the name given to the thick layer of fat in whales?
Blubber
What 2 main Vitamins are soluble in oil and not water.
Vitamins A and D
Oily fish such as Salmon contain an essential oil known as ?
Omega-3
If the Biuret test colour changes from blue to purple what does this show?
The presence of proteins.
If an iodine solution test changes from Orange to Black what does this show the presence of?
Starch.
What are MICRONUTRIENTS?
Essential nutrients that are needed in small amounts.
How does Seagrass obtain its Minerals?
It absorbs them through its roots.
What is vitamin A used for in the body?
Good vision and healthy skin.
What Vitamin plays an essential role in maintaining healthy skin, teeth and blood vessels.
Vitamin C
Vitamin D is essential for…
helping the body to absorb calcium to strenghten bones and teeth.
What vitamin helps energy release from cells?
Vitamin B
What protein contains iron and is used to transport oxygen in the blood?
Haemoglobin.
Name 5 essential elements used by organisms.
Carbon, Nitrogen, Magnesium, Calcium, Iron.
How do plants and protictists use Magnesium?
It helps them to make Chlorophyll.