Use your knowledge of nutrition to answer the following questions:
(a) Which food biomolecule contains glycerol?
(b) Name a reagent used to test for the presence of a reducing sugar - Leaving Cert Biology - Question 1 - 2021
Question 1
Use your knowledge of nutrition to answer the following questions:
(a) Which food biomolecule contains glycerol?
(b) Name a reagent used to test for the presence o... show full transcript
Worked Solution & Example Answer:Use your knowledge of nutrition to answer the following questions:
(a) Which food biomolecule contains glycerol?
(b) Name a reagent used to test for the presence of a reducing sugar - Leaving Cert Biology - Question 1 - 2021
Step 1
Which food biomolecule contains glycerol?
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Answer
The food biomolecule that contains glycerol is a fat or lipid. Glycerol is a key component of triglycerides, which are the main constituents of body fat in humans and animals.
Step 2
Name a reagent used to test for the presence of a reducing sugar.
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Answer
A common reagent used to test for reducing sugars is Benedict's solution. Alternately, Fehling's solution or Clinistix can also be used.
Step 3
Identify one other element, contained in protein, in addition to C, H, O.
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Answer
One other element contained in proteins, in addition to carbon (C), hydrogen (H), and oxygen (O), is nitrogen (N). Other elements such as sulfur (S) or phosphorus (P) may also be present in certain amino acids.
Step 4
Name one fibrous protein found in the body.
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Answer
One fibrous protein found in the body is collagen. It plays a crucial role in providing structural support to various tissues.
Step 5
Give one example of a water-soluble vitamin.
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Answer
An example of a water-soluble vitamin is Vitamin C (ascorbic acid), which is important for various bodily functions, including the maintenance of healthy skin and immune function.
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