Leaving Cert Biology 2013

In the case of any five of the following pairs of terms, clearly distinguish between the first term and second term by writing a brief sentence about each. 

(a) Starch - polysaccharide (or explained) or polymer or correct test Glucose - monosaccharide (or explained) or monomer or correct test 

(b)Amino Acid - building block of protein or monomer or unit of proteinProtein - polymer (of amino acids) or chain of (or many) amino acids 

(c)Cellulose - carbohydrate or polysaccharide or (found in plant) cell wall Keratin - protein or (found in human) hair (or nails or skin) 

(d)Enzyme - a catalyst (or explained) Hormone - a (chemical) messenger (or explained) 

(e)Biuret - (test for) proteinBenedict’s (Fehling’s) - (test for) reducing sugar (or glucose or maltose)

(f)Fats - (lipids) solid at room temp Oils - (lipids) liquid at room temp

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