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Semmelweis Entrance Exam Medicine Biology Questions and Answers 100% correct
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Semmelweis Entrance Exam Medicine Biology
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Semmelweis Entrance Exam MedicineBiology
What are carbohydrates and lipids? - answerOrganic compounds that are mostly
composed of three types of atom; carbon, hydrogen and oxygen
What do carbohydrates do? - answerprovide energy, in the form of sugars like glucose
and fructose, but they also make up structures like cellulose, which form the cell wall of
plant cells
What type of carbohydrate is the most important source of energy? - answermono-, di-
and poly-saccharides
What are mono and disaccharides? - answerpolar and soluble in water
What are polysaccharides? - answerMacromolecules resulting from polymerisation
(condensation) of sugars and are not soluble in water
Examples of monosaccharides - answerribose, glucose, fructose, galactose
What forms a disaccharide? - answertwo monosaccharides linked together by
condensation reactions with glycosidic bonds releasing one H2O molecule
Alpha glucose structure - answer
Beta glucose structure - answer
Examples of Polysaccharides - answercellulose, glycogen and starch
Monomer of Sucrose - answerglucose and fructose
monomer of maltose - answerglucose and glucose
monomer of lactose - answerglucose and galactose
monomer of starch - answerglucose
monomer of glycogen - answerglucose
monomer of cellulose - answerglucose
, In animals, what carbohydrate stores energy? - answerglycogen
What jobs do carbohydrates have other than storing energy? - answerstructural
components
What differs the polysaccharides all made up of glucose? - answerthey differ in the
arrangement of glucose molecules and position of the glycosidic bonds
Starch arrangement - answeramylopectin branched, amylose linear
What is galactose? - answera sugar in milk
What is fructose? - answera sugar found in fruit and honey
Main characteristic of lipids? - answerlittle to no affinity to water, mostly hydrophobic
What are the simple forms of lipids? - answerfat, oil and wax
What are lipids characteristics in different solvents? - answerthey are non-polar and
insoluble in water, but soluble in organic solvents
What are triglycerides? - answerthe main group of lipids. They are formed by
condensation reactions between one glycerol and three fatty acids, creating ester bonds
What are the main types of triglycerides? - answerfats and oils. Fats are solid and oil
liquid at room temp
What are fatty acids? - answercarboxylic acids, possessing a -COOH functional group
What are the two basic forms of fatty acids? - answersaturated and unsaturated
What differs saturated from unsaturated fatty acids? - answerUnsaturated fatty acids
have double bonds; a monounsaturated having one, whereas a polyunsaturated having
multiple
What are cis and trans isomers? - answercis having the double bond elements on the
same side, trans on opposite
Benefit of lipids over carbohydrates? - answerLipids have a higher energy content and
can act as thermal insulators
What is the primary protein structure? - answerthe number and sequence of amino
acids in a polypeptide
What is the secondary protein structure? - answerBeta pleated sheet and alpha helix.
Hydrogen bonds between polypeptides form these structures
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