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biology > Topic 1B- More biological molecules > Flashcards

Topic 1B- More biological molecules Flashcards

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AP® Biology flashcards Biology 101 flashcards
1
Q

is DNA and RNA a type of nucleic acid

A

yes

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2
Q

what does DNA stand for

A

deoxyribonucleic acid

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3
Q

what does ribonucleic acid shorten to

A

RNA

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4
Q

what is RNAs main function

A

to transfer genetic information to the ribosomes from DNA

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5
Q

what do ribosomes do with the RNA

A

read it and make polypeptides

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6
Q

what is a monomer of DNA

A

nucleotides

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7
Q

what are the components of a nucleotide

A

phosphate, pentose sugar and a (nitrogen containing) base

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8
Q

how do nucleotides join up

A

condensation reaction between the phosphate group of one and a sugar group of another

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9
Q

what bond is between two nucleotides

A

ester bond

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10
Q

what does a phosphodiester bond consist of

A

phosphate group and two ester bobds

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11
Q

what does the chain of sugar and phosphate make

A

a sugar-posphate backbone

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12
Q

what shape is DNA

A

double helix

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13
Q

haw many strands are in DNA

A

2

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14
Q

does every nucleotide in DNA have all the same components of a nucleotide

A

no, the base is different

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15
Q

what are the 4 nitrogenous bases in DNA

A

adenine, thymine, cytosine and guanine

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16
Q

what is adenine complementary to (in DNA)

A

thymine

17
Q

what is guanine complementary to

A

cytosine

18
Q

how many hydrogen bonds are between A and T

A

2

19
Q

how many hydrogen bonds are between C and G

A

3

20
Q

do the strads in DNA run parallel to one another

A

no, antiparallel

21
Q

what are the 4 bases in RNA

A

adenine, uracil, guanine and cytosine

22
Q

what is adenine complementary to in RNA

A

uracil

23
Q

out of all the bases what are purines

A

adenine and guanine

24
Q

out of all the bases what are pyrimidines

A

thymine, cytosine and uracil

25
Q

how many strands on polynucleotides are in RNA

A

1

26
Q

what stands are shorter, RNA or DNA

A

RNA

27
Q

does RNA contain a deoxyribose sugar

A

no, just ribiose

28
Q

what are ribosomes made from

A

RNA and proteins

29
Q

what does DNA store

A

genetic information

30
Q
A

biology (9 decks)

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