Introductin To Biological Molecules

Question 1

What’s covalent bonding

Answer 1

Atoms share a pair of electrons on their outer shells

Question 2

What’s ionic binding

Answer 2

Ions with opposite charges attract one another

Question 3

Hydrogen bonding

Answer 3

The electrons within a molecule are not evenly distributed but tend to spend more time in one position. Negative region of one polarised and positive from another attract each other

Question 4

What’s a long chain of monomers called. What’s the process by which they are formed

Answer 4

Polymers

Polymerisation

Question 5

What’s the basic sub unit of a polysaccharide, polynucleotide and polypeptide

Answer 5

Polysaccharide- monosaccharides (glucose)

Polynucleotide- mononucleotide

Polypeptide- amino acids

Question 6

What’s a condensation reaction

Answer 6

Reactions that produce water

Question 7

What’s a hydrolysis reaction

Answer 7

Water molecules are used when breaking the bonds that link the sub units of a polymer, thereby splitting the molecule into it’s constituent parts

Question 8

What reaction makes a polysaccharide

Answer 8

Condensation

Question 9

How are polypeptides made back into amino acids

Answer 9

By them been hydrolysed

Question 10

What’s metabolism

Answer 10

All the chemical processes that take place in living organisms are collectively called metabolism

Question 11

What’s a mole

Answer 11

The SI unit for measuring the amount of substance and is abbreviated to mol

Question 12

What is meant by a molar solution

Answer 12

Is a solution that contains one more of solute in each litre of solution