SEMMELWEIS ENTRANCE EXAM
CHEMISTRY AND BIOLOGY EXAM
QUESTIONS AND ANSWERS GRADED A+
2025/2026
Primary structure - ANS The sequence of amino acids in a protein chain.
Secondary structure - ANS Folding of the polypeptide chain into alpha-helices or beta-pleated
sheets.
Tertiary structure - ANS The overall 3D shape of the protein.
Quaternary structure - ANS The arrangement of multiple protein subunits.
Allostery - ANS The regulation of a protein's function through binding at a site other than the
active site.
Polysaccharides - ANS Long chains of sugar molecules (e.g., starch, cellulose).
Chemically modified carbohydrates - ANS Sugars with added functional groups (e.g., sugar
alcohols).
1 @COPYRIGHT 2026 ALLRIGHTS RESERVED.
, Glycoproteins - ANS Proteins with carbohydrate groups attached.
Proteoglycans - ANS Proteins heavily glycosylated with long sugar chains, involved in cell
signaling.
Triglycerides - ANS Fats made of three fatty acids and glycerol, used for energy storage.
Phosphoglycerolipids - ANS Lipids with a phosphate group, crucial in cell membranes.
DNA - ANS Stores genetic information.
RNA - ANS Translates genetic info into proteins (mRNA, tRNA, rRNA).
Chromosomes - ANS DNA structures that contain genes.
Genes - ANS Units of inheritance.
Alleles - ANS Different forms of a gene.
Genetic code - ANS Rules for translating DNA into proteins.
Vitamins - ANS Classification: Water-soluble (e.g., Vitamin C) and fat-soluble (e.g., Vitamin A).
Active derivatives - ANS Converted forms of vitamins that perform biological functions.
2 @COPYRIGHT 2026 ALLRIGHTS RESERVED.
CHEMISTRY AND BIOLOGY EXAM
QUESTIONS AND ANSWERS GRADED A+
2025/2026
Primary structure - ANS The sequence of amino acids in a protein chain.
Secondary structure - ANS Folding of the polypeptide chain into alpha-helices or beta-pleated
sheets.
Tertiary structure - ANS The overall 3D shape of the protein.
Quaternary structure - ANS The arrangement of multiple protein subunits.
Allostery - ANS The regulation of a protein's function through binding at a site other than the
active site.
Polysaccharides - ANS Long chains of sugar molecules (e.g., starch, cellulose).
Chemically modified carbohydrates - ANS Sugars with added functional groups (e.g., sugar
alcohols).
1 @COPYRIGHT 2026 ALLRIGHTS RESERVED.
, Glycoproteins - ANS Proteins with carbohydrate groups attached.
Proteoglycans - ANS Proteins heavily glycosylated with long sugar chains, involved in cell
signaling.
Triglycerides - ANS Fats made of three fatty acids and glycerol, used for energy storage.
Phosphoglycerolipids - ANS Lipids with a phosphate group, crucial in cell membranes.
DNA - ANS Stores genetic information.
RNA - ANS Translates genetic info into proteins (mRNA, tRNA, rRNA).
Chromosomes - ANS DNA structures that contain genes.
Genes - ANS Units of inheritance.
Alleles - ANS Different forms of a gene.
Genetic code - ANS Rules for translating DNA into proteins.
Vitamins - ANS Classification: Water-soluble (e.g., Vitamin C) and fat-soluble (e.g., Vitamin A).
Active derivatives - ANS Converted forms of vitamins that perform biological functions.
2 @COPYRIGHT 2026 ALLRIGHTS RESERVED.
