Search Header Logo
Untitled Presentation

Untitled Presentation

Assessment

Presentation

Biology

University

Hard

Created by

James Emme

FREE Resource

80 Slides • 24 Questions

1

media

2

Open Ended

Describe the process of nucleic acid (DNA and RNA) synthesis and its importance in genetic function.

3

media

4

Open Ended

Describe the main stages involved in the metabolism of nucleic acids in the human body.

5

media

6

media

7

Open Ended

Explain the central role of nucleic acids (DNA and RNA) in cellular activities and genetic information transfer, as described in the images.

8

media

9

Multiple Choice

Which of the following is NOT a component of a DNA molecule?

1

Deoxyribose sugar

2

Uracil base (U)

3

Adenine base (A)

4

Phosphate group

10

media

11

media

12

Fill in the Blank

The sugar found in RNA is called ___.

13

Multiple Select

Which of the following are present in both DNA and RNA molecules?

1

Adenine

2

Thymine

3

Cytosine

4

Phosphate group

14

media

15

Multiple Choice

What is the main difference between RNA and DNA?

1

RNA has two strands, DNA has one strand.

2

RNA contains thymine, DNA contains uracil.

3

RNA contains ribose sugar, DNA contains deoxyribose sugar.

4

RNA is only found in the nucleus, DNA is found throughout the cell.

16

media

17

Multiple Choice

Which of the following processes occurs when DNA is transcribed into an RNA copy in prokaryotic cells?

1

Transcription

2

Translation

3

Replication

4

Splicing

18

media

19

Multiple Choice

Which of the following are correct steps in the flow of genetic information in eukaryotic cells as shown in the diagram?

1

Chromosome → DNA → Gene → RNA → Protein

2

Chromosome → RNA → DNA → Protein

3

DNA → Protein → RNA → Gene

4

Gene → Chromosome → Protein → RNA

20

media

21

Multiple Choice

Which nitrogenous base is found in RNA but not in DNA?

1

Uracil

2

Thymine

3

Adenine

4

Guanine

22

media

23

media

24

Open Ended

Explain the difference between the degradation and synthesis of nucleic acids in living organisms.

25

media

26

Multiple Choice

Which of the following is NOT a step in the degradation of nucleic acids?

1

Hydrolysis of nucleic acid

2

Synthesis of polynucleotide chains

3

Degradation of purine bases

4

Degradation of pyrimidine bases

27

media

28

media

29

Multiple Choice

Which of the following is NOT a component of a nucleotide in DNA?

1

Adenine

2

Ribose

3

Phosphate group

4

Uracil

30

media

31

Fill in the Blank

The sugar found in RNA is ___ .

32

media

33

media

34

Open Ended

Explain why nucleic acids in food are not digested in the stomach but are mainly digested in the small intestine.

35

media

36

Multiple Select

Which of the following are pyrimidine bases found in nucleic acids?

1

Adenine

2

Cytosine

3

Uracil

4

Thymine

37

Multiple Choice

What is the main function of nucleotidase in nucleic acid digestion?

1

Breaks phosphodiester bonds in DNA

2

Removes phosphate group from mononucleotides

3

Converts nucleosides to free bases

4

Synthesizes nucleotides

38

Multiple Select

Which enzymes are involved in the digestion of nucleic acids in the small intestine?

1

Endonuclease

2

Phosphodiesterase

3

Nucleotidase

4

Amylase

39

media

40

Multiple Choice

Which of the following is the main form absorbed through the membrane of intestinal epithelial cells during nucleic acid digestion?

1

Free nitrogenous bases and some nucleosides

2

Large nucleotides

3

Whole nucleic acids

4

Only phosphate groups

41

media

42

Multiple Select

After absorption into intestinal cells, which of the following are possible fates of nitrogenous bases and nucleosides?

1

Used for synthesis of endogenous nucleotides and nucleosides

2

Rapidly converted to uric acid (for purines) and transported to blood

3

Excreted directly without metabolism

4

Converted to simpler compounds such as β-alanine and β-aminoisobutyrate (for pyrimidines)

43

media

44

Fill in the Blank

The enzyme that converts adenine to xanthine in purine degradation is called ___.

45

media

46

Open Ended

Describe the biochemical pathway by which purine bases are degraded to uric acid in humans. Include the key intermediates and enzymes involved.

47

media

48

Multiple Choice

In most mammals, uric acid is further converted to which water-soluble compound by the enzyme uricase?

1

Allantoin

2

Urea

3

Ammonia

4

Glyoxylic acid

49

media

50

Fill in the Blank

The main water-soluble product of pyrimidine base degradation is ___.

51

media

52

media

53

media

54

media

55

media

56

media

57

media

58

media

59

media

60

media

61

media

62

media

63

media

64

media

65

media

66

media

67

media

68

media

69

media

70

media

71

media

72

media

73

media

74

media

75

media

76

media

77

media

78

media

79

media

80

media

81

media

82

media

83

media

84

media

85

media

86

media

87

media

88

media

89

media

90

media

91

media

92

media

93

media

94

media

95

media

96

media

97

media

98

media

99

media

100

media

101

media

102

media

103

media

104

media
media

Show answer

Auto Play

Slide 1 / 104

SLIDE