Topic 1 BIO MOLECULES- monomers and polymers

Question 1

What is a polymer?

Answer 1

large molecules made up of repeating monomer units

Question 2

What is a monomer?

Answer 2

smaller, more basic molecular units that can form a polymer

Question 3

monosaccharide + monosaccharide

Answer 3

disaccharide

Question 4

monomer+ monomer

Answer 4

dimer

Question 5

monomer+monomer+monomer

Answer 5

trimer

Question 6

What is a condensation reaction?

Answer 6

joins two molecules together with the formation of a chemical bond and involves releasing a molecule of water

Question 7

(a)glucose +(a)glucose

Answer 7

maltose (glycosigic bond)

Question 8

amino acid+amino acid

Answer 8

dipeptide+ water (peptide bond)

Question 9

nucleotide+nucleotide

Answer 9

dimer+ water (phosphodiester bond)

Question 10

What is a hydrolysis reaction?

Answer 10

breaks a chemical bond between monomers and involves the use of a water molecule

Question 11

startch+water

Answer 11

glucose

Question 12

DNA+water

Answer 12

nucleotide

Question 13

protein+water

Answer 13

amino acid

Question 14

Give 3 examples of monomers

Answer 14

monosaccharides, amino acids and nucleotide

Question 15

What is the theory of evolution?

Answer 15

the theory that all organisations on earth are descended from one or a few common ancestors and that they have changed and diversified over time

Question 16

What do all organisms share

What do these similarities suggest?

Answer 16

the same biochemistry, they all contain the same groups of carbon-based compounds that interact in similar ways

that animals and plants have a common ancestor which provides indirect evidence for evolution

Question 17

What are biological molecules?

Answer 17

-Large chemical compounds that are found in all living organisms

Question 18

Approximately how many species are there on earth?

Answer 18

8.7 million

Question 19

What are the four biological molecules?

Answer 19

-Proteins
-Lipids
-Carbohydrates
-Nucleic acids

Question 20

What does organic mean?

Answer 20

-Carbon-containing