Medicine Biology 2026/2027
Exam Questions and Answers |
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What are carbohydrates and lipids? - ANSWER ✔✔Organic
compounds that are mostly composed of three types of atom; carbon,
hydrogen and oxygen
What do carbohydrates do? - ANSWER ✔✔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? -
ANSWER ✔✔mono-, di- and poly-saccharides
What are mono and disaccharides? - ANSWER ✔✔polar and soluble
in water
What are polysaccharides? - ANSWER ✔✔Macromolecules resulting
from polymerisation (condensation) of sugars and are not soluble in
water
Examples of monosaccharides - ANSWER ✔✔ribose, glucose,
fructose, galactose
What forms a disaccharide? - ANSWER ✔✔two monosaccharides
linked together by condensation reactions with glycosidic bonds
releasing one H2O molecule
Alpha glucose structure - ANSWER ✔✔
Beta glucose structure - ANSWER ✔✔
Examples of Polysaccharides - ANSWER ✔✔cellulose, glycogen and
starch
Monomer of Sucrose - ANSWER ✔✔glucose and fructose
monomer of maltose - ANSWER ✔✔glucose and glucose
, monomer of lactose - ANSWER ✔✔glucose and galactose
monomer of starch - ANSWER ✔✔glucose
monomer of glycogen - ANSWER ✔✔glucose
monomer of cellulose - ANSWER ✔✔glucose
In animals, what carbohydrate stores energy? - ANSWER
✔✔glycogen
What jobs do carbohydrates have other than storing energy? -
ANSWER ✔✔structural components
What differs the polysaccharides all made up of glucose? - ANSWER
✔✔they differ in the arrangement of glucose molecules and position of
the glycosidic bonds
Starch arrangement - ANSWER ✔✔amylopectin branched, amylose
linear
What is galactose? - ANSWER ✔✔a sugar in milk
What is fructose? - ANSWER ✔✔a sugar found in fruit and honey
Main characteristic of lipids? - ANSWER ✔✔little to no affinity to
water, mostly hydrophobic
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