Semmelweis Entrance Exam Medicine
Biology EXAM Questions and Answers
(Verified Answers) Study Guide (latest
version verified for accuracy) | Latest!!
What are carbohydrates and lipids? -CORRECTANSWER Organic compounds that are
mostly composed of three types of atom; carbon, hydrogen and oxygen
What do carbohydrates do? -CORRECTANSWER provide 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? -
CORRECTANSWER mono-, di- and poly-saccharides
What are mono and disaccharides? -CORRECTANSWER polar and soluble in water
What are polysaccharides? -CORRECTANSWER Macromolecules resulting from
polymerisation (condensation) of sugars and are not soluble in water
Examples of monosaccharides -CORRECTANSWER ribose, glucose, fructose,
galactose
,What forms a disaccharide? -CORRECTANSWER two monosaccharides linked
together by condensation reactions with glycosidic bonds releasing one H2O molecule
Alpha glucose structure -CORRECTANSWER
Beta glucose structure -CORRECTANSWER
Examples of Polysaccharides -CORRECTANSWER cellulose, glycogen and starch
Monomer of Sucrose -CORRECTANSWER glucose and fructose
monomer of maltose -CORRECTANSWER glucose and glucose
monomer of lactose -CORRECTANSWER glucose and galactose
monomer of starch -CORRECTANSWER glucose
monomer of glycogen -CORRECTANSWER glucose
monomer of cellulose -CORRECTANSWER glucose
In animals, what carbohydrate stores energy? -CORRECTANSWER glycogen
, What jobs do carbohydrates have other than storing energy? -CORRECTANSWER
structural components
What differs the polysaccharides all made up of glucose? -CORRECTANSWER they
differ in the arrangement of glucose molecules and position of the glycosidic bonds
Starch arrangement -CORRECTANSWER amylopectin branched, amylose linear
What is galactose? -CORRECTANSWER a sugar in milk
What is fructose? -CORRECTANSWER a sugar found in fruit and honey
Main characteristic of lipids? -CORRECTANSWER little to no affinity to water, mostly
hydrophobic
What are the simple forms of lipids? -CORRECTANSWER fat, oil and wax
What are lipids characteristics in different solvents? -CORRECTANSWER they are non-
polar and insoluble in water, but soluble in organic solvents
What are triglycerides? -CORRECTANSWER the main group of lipids. They are formed
by condensation reactions between one glycerol and three fatty acids, creating ester
bonds
Biology EXAM Questions and Answers
(Verified Answers) Study Guide (latest
version verified for accuracy) | Latest!!
What are carbohydrates and lipids? -CORRECTANSWER Organic compounds that are
mostly composed of three types of atom; carbon, hydrogen and oxygen
What do carbohydrates do? -CORRECTANSWER provide 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? -
CORRECTANSWER mono-, di- and poly-saccharides
What are mono and disaccharides? -CORRECTANSWER polar and soluble in water
What are polysaccharides? -CORRECTANSWER Macromolecules resulting from
polymerisation (condensation) of sugars and are not soluble in water
Examples of monosaccharides -CORRECTANSWER ribose, glucose, fructose,
galactose
,What forms a disaccharide? -CORRECTANSWER two monosaccharides linked
together by condensation reactions with glycosidic bonds releasing one H2O molecule
Alpha glucose structure -CORRECTANSWER
Beta glucose structure -CORRECTANSWER
Examples of Polysaccharides -CORRECTANSWER cellulose, glycogen and starch
Monomer of Sucrose -CORRECTANSWER glucose and fructose
monomer of maltose -CORRECTANSWER glucose and glucose
monomer of lactose -CORRECTANSWER glucose and galactose
monomer of starch -CORRECTANSWER glucose
monomer of glycogen -CORRECTANSWER glucose
monomer of cellulose -CORRECTANSWER glucose
In animals, what carbohydrate stores energy? -CORRECTANSWER glycogen
, What jobs do carbohydrates have other than storing energy? -CORRECTANSWER
structural components
What differs the polysaccharides all made up of glucose? -CORRECTANSWER they
differ in the arrangement of glucose molecules and position of the glycosidic bonds
Starch arrangement -CORRECTANSWER amylopectin branched, amylose linear
What is galactose? -CORRECTANSWER a sugar in milk
What is fructose? -CORRECTANSWER a sugar found in fruit and honey
Main characteristic of lipids? -CORRECTANSWER little to no affinity to water, mostly
hydrophobic
What are the simple forms of lipids? -CORRECTANSWER fat, oil and wax
What are lipids characteristics in different solvents? -CORRECTANSWER they are non-
polar and insoluble in water, but soluble in organic solvents
What are triglycerides? -CORRECTANSWER the main group of lipids. They are formed
by condensation reactions between one glycerol and three fatty acids, creating ester
bonds
