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MODULE 2 > Biochemistry > Flashcards

Biochemistry Flashcards

1
Q

the study of matter

a. chemistry
b. biochemistry
c. analytical science
d. biology
e. NOTA

A

a. chemistry

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2
Q

“Bios” means

a. Earth
b. Water
c. Life
d. Air

A

c. Life

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3
Q

it is the basic unit of life

a. molecule
b. cell
c. mitochondria
d. energy
e. blood

A

b. cell

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4
Q

the following are exclusive parts of a plant cell, EXCEPT:

a. chloroplasts
b. vacuole
c. cell wall
d. cell membrane
e. plastid

A

d. cell membrane

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5
Q

the outermost part of animal cell

a. cell wall
b. cell membrane
c. cytoplasm
d. vacuole
e. plastid

A

b. cell membrane

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6
Q

too much water enters the cell-> Swell-> Burst

a. osmosis
b. crenation
c. lysis
d. mitosis
e. apoptosis

A

c. lysis

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7
Q

too much water exits the cell-> Shrink

a. osmosis
b. crenation
c. lysis
d. mitosis
e. apoptosis

A

b. crenation

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8
Q

Cell wall of bacteria

a. chitin
b. chloroplasts
c. peptidoglycan
d. cellulose
e. vacuole

A

c. peptidoglycan

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8
Q

Cell wall of plants

a. chitin
b. chloroplasts
c. peptidoglycan
d. cellulose
e. vacuole

A

d. cellulose

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9
Q

Cell wall of fungi

a. chitin
b. chloroplasts
c. peptidoglycan
d. cellulose
e. vacuole

A

a. chitin

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10
Q

regulates the entry and exit of substances in the cells

a. cell wall
b. cell membrane
c. cytoplasm
d. cytosol
e. vacuole

A

b. cell membrane

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11
Q

the ff are chemical composition of cell membrane, except

a. phospholipids
b. cholesterol
c. glycolipids
d. glycoproteins
e. NOTA

A

e. NOTA

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12
Q

what is the main/major lipid in the cell membrane

a. glycolipid
b. phospholipid
c. cholesterol
d. AOTA
e. NOTA

A

b. phospholipid

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13
Q

other name of lecithin

a. phosphatidylcholine
b. phosphatidylethanolamine
d. sphingomyelin

A

a. phosphatidylcholine

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14
Q

other name of cephalin

a. phosphatidylcholine
b. phosphatidylethanolamine
d. sphingomyelin

A

b. phosphatidylethanolamine

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15
Q

backbone of phosphoglycerides

A

glycerol

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16
Q

backbone of sphingolipids

A

sphingosine

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17
Q

the bi-regulator of membrane fluidity

a. phospholipid
b. cholesterol
c. glycolipid
d. glycoprotein
e. NOTA

A

b. cholesterol

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18
Q

which of the following is not a biopolymer

a. proteins
b. nucleic acid
c. lipids
d. carbohydrates

A

c. lipids

Lipids aren’t polymers since they lack a monomer unit.

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19
Q

principal source of metabolic energy

A

glucose

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20
Q

strengthen the cell wall of plants

A

cellulose

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21
Q

GAGs is made up of:

A

amino sugars + uronic acid derivatives

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22
Q

example of GAGs that is important in blood clotting

A

Heparin sulfate

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23
Q

segments of DNA that specify proteins

A

Genes

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24
Q

total genetic makeup of an organism

A

Genome

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25
Q

which nucleo base/nitrogen base is only found in DNA

A

Thymine

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26
Q

which nucleo base/nitrogen base is only found in RNA

A

Uracil

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27
Q

the following are pyrimidine bases except

a. Thymine
b. Guanine
c. Uracil
d. Cytosine
e. NOTA

A

b. Guanine

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28
Q

Which among the pyrimidine base contains methyl group at 5th carbon?

A

Thymine

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29
Q

the scientists who first obtained X-ray crystallography photographs of fibers of DNA

A

Maurice Wilkins & Rosalind Franklin

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30
Q

they inferred a structural model of the DNA

A

James Watson & Francis Crick

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31
Q

This is a rigid exterior layer found in plant cells that provides structural support.

A. Cell membrane
B. Cell wall
C. Central vacuole

A

B. Cell wall

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32
Q

This structure separates the cell contents from the outside world, holding organelles and the cytosol in place.

A. Cell membrane
B. Cell wall
C. Central vacuole
D. Nucleus

A

A. Cell membrane

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33
Q

This membrane-enclosed sac is found in plant cells and is used for storage and maintaining turgor pressure.

A. Lysosomes
B. Mitochondrion
C. Central vacuole
D. Peroxisomes

A

C. Central vacuole

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34
Q

This organelle is the site of photosynthesis in green plants and algae and contains its own DNA.

A. Golgi Apparatus
B. Mitochondrion
C. Chloroplast
D. Peroxisomes

A

C. Chloroplast

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35
Q

This is a continuous membrane throughout the cell with a rough part studded with ribosomes, which is the site of protein synthesis.

A. Golgi Apparatus
B. Endoplasmic Reticulum
C. Chloroplast
D. Central Vacuole

A

B. Endoplasmic Reticulum

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36
Q

This series of flattened membranes is involved in the secretion of proteins from cells and in reactions that link sugars to other cellular components.

A. Golgi Apparatus
B. Endoplasmic Reticulum
C. Lysosomes
D. Peroxisomes

A

A. Golgi Apparatus

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37
Q

These are membrane-enclosed sacs containing hydrolytic enzymes.

A. Golgi Apparatus
B. Mitochondrion
C. Endoplasmic Reticulum
D. Lysosomes

A

D. Lysosomes

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38
Q

This organelle is the site of energy-yielding oxidation reactions and contains its own DNA.

A. Golgi Apparatus
B. Mitochondrion
C. Chloroplast
D. Lysosomes

A

B. Mitochondrion

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39
Q

This is the location of the main genome and the site of most DNA and RNA synthesis.

A. Endoplasmic Reticulum
B. Nucleus
C. Golgi Apparatus
D. Lysosomes

A

B. Nucleus

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40
Q

These sacs contain enzymes involved in the metabolism of hydrogen peroxide.

A. Peroxisomes
B. Lysosomes
C. Golgi Apparatus
D. Mitochondrion

A

A. Peroxisomes

41
Q

Which organelle is found in eukaryotes but not in prokaryotes and is involved in photosynthesis?

A. Mitochondria
B. Nucleus
C. Chloroplasts
D. Ribosomes

A

C. Chloroplasts

42
Q

Which organelle is present in both prokaryotes and eukaryotes and is responsible for protein synthesis?

A. Nucleus
B. Mitochondria
C. Endoplasmic Reticulum
D. Ribosomes

A

D. Ribosomes

43
Q

Which organelle is involved in energy production and is found only in eukaryotes?

A. Ribosomes
B. Mitochondria
C. Chloroplasts
D. Cell membrane

A

B. Mitochondria

44
Q

Which structure is found in eukaryotes but not in prokaryotes and is the site of most DNA and RNA synthesis?

A. Ribosomes
B. Endoplasmic Reticulum
C. Nucleus
D. Chloroplasts

A

C. Nucleus

45
Q

Which organelle is a series of flattened membranes involved in secretion and is found only in eukaryotes?

A. Ribosomes
B. Mitochondria
C. Golgi Apparatus
D. Endoplasmic Reticulum

A

C. Golgi Apparatus

46
Q

Process called when too much water enters the cell, causing it to swell and burst?

A. Crenation
B. Lysis
C. Osmosis
D. Diffusion

A

B. Lysis

47
Q

process called when too much water exits the cell, causing it to shrink?

A. Lysis
B. Plasmolysis
C. Crenation
D. Turgor pressure

A

C. Crenation

48
Q

Which animal is employed in the bioassay of glucagon?

A. Chicken
B. Cat
C. Pigeon
D. Rabbit
E. Dog

A

B. Cat

49
Q

Which animal is employed in the bioassay of insulin?

A. Chicken
B. Cat
C. Pigeon
D. Rabbit
E. Dog

A

D. Rabbit

50
Q

Which animal is employed in the bioassay of parathyroid?

A. Chicken
B. Cat
C. Pigeon
D. Rabbit
E. Dog

A

E. Dog

51
Q

Which animal is employed in the bioassay of digoxin?

A. Chicken
B. Cat
C. Pigeon
D. Rabbit
E. Dog

A

C. Pigeon

52
Q

Which animal is employed in the bioassay of oxytocin?

A. Chicken
B. Cat
C. Pigeon
D. Rabbit
E. Dog

A

A. Chicken

Female domisticated

53
Q

Which animal is employed in the bioassay of heparin?

A. Chicken
B. Male rat
C. Pigeon
D. Sheep
E. Rabbit

A

D. Sheep

54
Q

Which animal is employed in the bioassay of vasopressin?

A. Chicken
B. Male rat
C. Pigeon
D. Sheep
E. Rabbit

A

B. Male rat

55
Q

Which animal is employed in the bioassay of tubocurarine?

A. Chicken
B. Male rat
C. Pigeon
D. Sheep
E. Rabbit

A

E. Rabbit (Head Drop Assay)

56
Q

which of the following test indicates the presence of cholesterol and has a positive result of emerald green:

a. Liebermann-Burchard
b. Salkowski
c. Acrolein
d. Ammonium molybdate
e. Osmic acid

A

a. Liebermann-Burchard

57
Q

which of the following test indicates the presence of cholesterol and has a positive result of red color:

a. Liebermann-Burchard
b. Salkowski
c. Acrolein
d. Ammonium molybdate
e. Osmic acid

A

b. Salkowski

58
Q

Test that indicates the presence of phosphate and has a positive result of yellow ppt.

a. Liebermann-Burchard
b. Salkowski
c. Acrolein
d. Ammonium molybdate
e. Osmic acid

A

d. Ammonium molybdate

59
Q

osmic acid is a test used to detect the presence of______ and has a black ppt (+):

a. cholesterol
b. glycerol
c. phosphate
d. fats & fixed oils

A

d. fats & fixed oils

60
Q

Acrolein is a test used to detect the presence of______ and has a sharp, acrid color (+):

a. cholesterol
b. glycerol
c. phosphate
d. fats & fixed oils

A

b. glycerol

61
Q

The following enzyme and its example is a correct match, except:

I. ligases = fumarase, enolase
II. oxidoreductase = dehydrogenase, reductase, oxidase
III. transferase = kinase. transaminase
IV. hydrolase = chymotrypsin, protease, amylase, peptidase, lactase, lysozyme
V. lyase = synthetase, polymerase, carboxylase
VI. isomerase = isomerase, mutase, epimerase

a. I, II
b. III,IV
c. I,V
d. II,III,IV,VI
e. I,II,III,V

A

c. I,V

62
Q

which amino acid contains an pyrrolidine side chain:

a. phenylalanine
b. tyrosine
c. asparagine
d. proline
e. valine

A

d. proline

Pro-P

63
Q

which amino acid contains a methyl side chain:

a. alanine
b. arginine
c. asparagine
d. aspartic acid
e. glycine

A

a. alanine

Ala-A

64
Q

which amino acid contains a isobutyl side chain:

a. cysteine
b. arginine
c. leucine
d. glutamine
e. histidine

A

c. leucine

Leu-L

65
Q

which amino acid contains a imidazole side chain:

a. cysteine
b. arginine
c. leucine
d. glutamine
e. histidine

A

e. histidine

His-H

66
Q

which amino acid contains a thioeter side chain:

a. glutamine
b. methionine
c. proline
d. threonine
e. serine

A

b. methionine

Met-M

67
Q

which amino acid contains a guanidino side chain:

a. arginine
b. asparagine
c. alanine
d. aspartic acid
e. glutamic acid

A

a. arginine

Arg-R

68
Q

which amino acid contains an methyl carboxy side chain:

a. arginine
b. asparagine
c. alanine
d. aspartic acid
e. glutamic acid

A

d. aspartic acid

Asp-D

69
Q

which amino acid contains an ethyl carboxy side chain:

a. arginine
b. asparagine
c. alanine
d. aspartic acid
e. glutamic acid

A

e. glutamic acid

Glu-E

70
Q

which amino acid contains an ethyl carbamoyl side chain:

a. aaspartic acid
b. asparagine
c. glutamine
d. aspartic acid
e. glutamic acid

A

c. glutamine

Gln-Q

71
Q

which amino acid contains a hydrogen side chain:

a.lysine
b. cysteine
c. glutamine
d. glysine
e. tyrosine

A

d. glysine

Gly-G

72
Q

which amino acid contains an phenol side chain:

a.lysine
b. cysteine
c. glutamine
d. glysine
e. tyrosine

A

e. tyrosine

Tyr-R

73
Q

which amino acid contains an hydroxymethyl side chain:

a. serine
b. cysteine
c. threonine
d. proline
e. tyrosine

A

a. serine

Ser-S

74
Q

which amino acid contains an hydroxyethyl side chain:

a. serine
b. cysteine
c. threonine
d. proline
e. tyrosine

A

c. threonine

Thr-T

75
Q

sequence of amino acid

a. primary
b. secondary
c. tertiary
d. quaternary

A

a. primary

76
Q

local folding of peptide chains

a. primary
b. secondary
c. tertiary
d. quaternary

A

b. secondary

77
Q

interaction of several polypeptide chains in a multi-subunit protein

a. primary
b. secondary
c. tertiary
d. quaternary

A

d. quaternary

78
Q

3D arrangement of one polypeptide chain

a. primary
b. secondary
c. tertiary
d. quaternary

A

c. tertiary

79
Q

the nonprotein component part of an enzyme (Inorganic ions)

a. cosubstrate
b. coenzyme
c. cofactor
d. holoenzyme
e. Apoenzyme

A

c. cofactor

80
Q

the nonprotein component part of an enzyme (organic/organometallic)

a. cosubstrate
b. coenzyme
c. cofactor
d. holoenzyme
e. Apoenzyme

A

b. coenzyme

81
Q

the protein part of an enzyme

a. cosubstrate
b. coenzyme
c. cofactor
d. holoenzyme
e. Apoenzyme

A

e. Apoenzyme

82
Q

the complete active form of an enzyme

a. cosubstrate
b. coenzyme
c. cofactor
d. holoenzyme
e. Apoenzyme

A

d. holoenzyme

83
Q

a coenzyme tightly/covalently bound in the enzyme protein

a. cosubstrate
b. coenzyme
c. Prosthetic group
d. holoenzyme
e. Apoenzyme

A

c. Prosthetic group

84
Q

a coenzyme temporarily bound in the enzyme protein

a. cosubstrate
b. coenzyme
c. Prosthetic group
d. holoenzyme
e. Apoenzyme

A

a. cosubstrate

85
Q

a plasma protein that inhibits proteases involved in forming blood clots.

A

antithrombin III

86
Q

a GAG that maintain flexibility of tissues; formation of skin and cartilage

A

chondroitin sulfate

87
Q

a GAG that serves as a structural component of cornea

A

keratan sulfate

88
Q

which vitamin precursor is not correctly match to its derivative coenzyme?

A. Vit B2: (FAD/FMN)
B. Vit B3: (NAD+NADP+)
C. Vit B6: (PLP)
D. Vit B9: (THF)
E. Vit B12: (TPP)

A

E. Vit B12: (TPP)

89
Q

enzyme

A. Defensive
B. Regulatory
C. Catalytic
D. Transport
E. Storage

A

C. Catalytic

90
Q

Hormones

A. Defensive
B. Regulatory
C. Catalytic
D. Transport
E. Storage

A

B. Regulatory

91
Q

IgG, Fibrinogen, Thrombin

A. Defensive
B. Regulatory
C. Catalytic
D. Transport
E. Storage

A

A. Defensive

92
Q

Albumin, Myoglobin, Hemoglobin

A. Defensive
B. Regulatory
C. Catalytic
D. Transport
E. Storage

A

D. Transport

93
Q

Casein (milk), Ferritin (iron), Ovalbumin (egg)

A. Defensive
B. Regulatory
C. Catalytic
D. Transport
E. Storage

A

E. Storage

94
Q

Collagen, Elastin, Keratin

A. Structural
B. Receptor
C. Catalytic
D. Transport
E. Contractile

A

A. Structural

95
Q

Actin, Myosin

A. Structural
B. Receptor
C. Catalytic
D. Transport
E. Contractile

A

E. Contractile

96
Q

Nicotinic receptors

A. Structural
B. Receptor
C. Catalytic
D. Transport
E. Contractile

A

B. Receptor

97
Q

Jatropha curcas

A

Tubang bakod

98
Q

Michelia champaca

A

Tsampaka

99
Q

cCroton tiglium

A

Tuba

MODULE 2 (2 decks)

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