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Biology > Topic 1 BIO MOLECULES- monomers and polymers > Flashcards

Topic 1 BIO MOLECULES- monomers and polymers Flashcards

1
Q

What is a polymer?

A

large molecules made up of repeating monomer units

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2
Q

What is a monomer?

A

smaller, more basic molecular units that can form a polymer

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3
Q

monosaccharide + monosaccharide

A

disaccharide

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4
Q

monomer+ monomer

A

dimer

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5
Q

monomer+monomer+monomer

A

trimer

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6
Q

What is a condensation reaction?

A

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

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7
Q

(a)glucose +(a)glucose

A

maltose (glycosigic bond)

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8
Q

amino acid+amino acid

A

dipeptide+ water (peptide bond)

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9
Q

nucleotide+nucleotide

A

dimer+ water (phosphodiester bond)

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10
Q

What is a hydrolysis reaction?

A

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

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11
Q

startch+water

A

glucose

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12
Q

DNA+water

A

nucleotide

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13
Q

protein+water

A

amino acid

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14
Q

Give 3 examples of monomers

A

monosaccharides, amino acids and nucleotide

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15
Q

What is the theory of evolution?

A

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

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16
Q

What do all organisms share

What do these similarities suggest?

A

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

17
Q

What are biological molecules?

A

-Large chemical compounds that are found in all living organisms

18
Q

Approximately how many species are there on earth?

A

8.7 million

19
Q

What are the four biological molecules?

A

-Proteins
-Lipids
-Carbohydrates
-Nucleic acids

20
Q

What does organic mean?

A

-Carbon-containing

Biology (28 decks)

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