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P2 Lab > P2 > Flashcards

P2 Flashcards

1
Q

The most common type of protein in milk

A

Casein

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2
Q

A metabolism reaction that releases energy

A

Catabolism

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3
Q

A metabolism reaction that requires the input of energy

A

Anabolism

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4
Q

Breaking down of a big complex molecule into smaller, easier to absorb molecules

A

Catabolism

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5
Q

Required for maintenance, growth, and storage

A

Anabolism

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6
Q

Conversion of kinetic energy into potential energy

A

Anabolism

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7
Q

It is used to lyase membrane lipids, allowing intercellular component of the cell to be released

A

Detergent/soap

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8
Q

For numbers 8-10: identify what type of mutation takes place in each number:
a. Silent mutation
b. Nonsense mutation
c. Missense mutation

DNA: TGC GTG CTT AAG CGG TGT ACA CGT TGC
mRNA: ACG CAC GAA UUC GCC ACA UGU GCA ACG
Amino Acid: Thr His Glu Phe Ala Thr Cys Ala Thr

  1. mRNA: ACG CAC GAA UUC GCU ACA UGU GCA ACG
    amino acid: Thr His Glu Phe Ala Thr Cys Ala Thr
A

A. silent mutation

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9
Q

For numbers 8-10: identify what type of mutation takes place in each number:
a. Silent mutation
b. Nonsense mutation
c. Missense mutation

DNA: TGC GTG CTT AAG CGG TGT ACA CGT TGC
mRNA: ACG CAC GAA UUC GCC ACA UGU GCA ACG
Amino Acid: Thr His Glu Phe Ala Thr Cys Ala Thr

  1. mRNA: ACG CAC GAA UUC GCC CGU UGU GCA ACG
    amino acid: Thr His Glu Phe Ala Arg Cys Ala Thr
A

C. Missense mutation

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10
Q

For numbers 8-10: identify what type of mutation takes place in each number:
a. Silent mutation
b. Nonsense mutation
c. Missense mutation

DNA: TGC GTG CTT AAG CGG TGT ACA CGT TGC
mRNA: ACG CAC GAA UUC GCC ACA UGU GCA ACG
Amino Acid: Thr His Glu Phe Ala Thr Cys Ala Thr

  1. mRNA: ACG CAC GAA UUC AUC ACA UGU GCA ACG
    amino acid: Thr His Glu Phe Ile Arg Cys Ala Thr
A

C. Missense mutation

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11
Q

A denaturing agent that is used to precipitate the isolated DNA

A

Cold alcohol

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12
Q

For numbers 12-14: Match the following reagents used in isolation if proteins
a. Iodine solution
b. Acetic acid

  1. Isolation of albumin
A

B. Acetic acid

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13
Q

For numbers 12-14: Match the following reagents used in isolation if proteins
a. Iodine solution
b. Acetic acid

  1. Isolation of gluten
A

B. Acetic acid

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14
Q

For numbers 12-14: Match the following reagents used in isolation if proteins
a. Iodine solution
b. Acetic acid

  1. Isolation of starch
A

A. Iodine solution

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15
Q

A protein molecule is known to contain what

a. Carbon
b. Hydrogen
c. Nitrogen
d. All of the above

A

d. All of the above

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16
Q

What protein is isolated from wheat flour?

A

Gluten

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17
Q

What protein is isolated from egg white?

A

Albumin

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18
Q

It is the final product of purine oxidation in the body and derived from the degradation of nucleoproteins in food and body of the cells.

A

Uric acid

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19
Q

Which test is used to determine the presence of glucose in urine sample?

A

Benedict’s test

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20
Q

What test is used to determine the presence of ketone bodies in urine samples?

A

Gunning’s test

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21
Q

The presence of this gas indicates the presence of urea in urine

A

N2

22
Q

A positive result in Biuret test is characterized by:
a. Formation if reddish violet ring
b. Black precipitate
c. Rose-pink to violet colored solution
d. Red colored solution

A

c. Rose-pink to violet colored solution

23
Q

What qualitative test is used to detect the presence of phenol containing amino acids?

A

Millon’s test

24
Q

It is a specific test that detects the presence of the amino acid arginine

A

Sakaguchi

25
Q

A qualitative test used in crime scenes to detect latent fingerprints on porous surfaces

A

Ninhydrin

26
Q

The white appearance of milk is mostly due to the

A

Micelles

27
Q

Nucleotides contain a deoxyribose sugar

A

DNA

28
Q

Double-strand molecule

A

DNA

29
Q

CopIes and carries genetic information

A

RNA

30
Q

Base pair: A-T, G-C

A

DNA

31
Q

Base pair: A-U, G-C

A

RNA

32
Q

Mostly found in the cytoplasm

A

RNA

33
Q

TRUE OR FALSE:

During the absorptive stage, the glucose levels in the blood declines

A

FALSE

34
Q

TRUE OR FALSE:

Patients with type II diabetes can produce Insulin, however, it is nonfunctional

A

TRUE

35
Q

TRUE OR FALSE:

Glucagon inhibits glycogen synthesis and stimulates breaking down of glycogen to glucose

A

TRUE

36
Q

TRUE OR FALSE:

Point mutations are changes in two nucleotides of DNA

A

FALSE

37
Q

TRUE OR FALSE:

Denaturation causes disruption in the primary, secondary, tertiary, and quaternary structures of proteins

A

FALSE

38
Q

Proteins are organic compound made up of amino acids joined by the means of what?

A

Peptide linkages

39
Q

What is the product of the decomposition of the amino acid tryptophan

A

Indican

40
Q

Where do ketone bodies form?

A

Liver

41
Q

A urine sample was subjected to creatinine test. Upon addition of the alkaline picrate solution, an orange compound was formed. What does it indicate?

a. The urine contains creatinine
b. The urine is negative in creatinine

A

a. The urine contains creatinine

42
Q

A urine sample was subjected to uric acid test. Upon treatment with sodium carbonate and phosphotungstic acid, a blue-colored solution was formed. What does it indicate?

a. The urine is negative in uric acid
b. The urine is positive in uric acid

A

b. The urine is positive in uric acid

43
Q

Which of the following does not belong to the group?

a. Picric acid
b. Tannic acid
c. Nitric acid
d. Trichloroacetic acid

A

c. Nitric acid

44
Q

Gluten is a mixture of two proteins:

A

Glutenin and gliadin

45
Q

The most nutritionally complete food found in nature

A

Milk

46
Q

Which if the following is a water-soluble protein?

a. a-casein
b. b-casein
c. k-casein

A

c. k-casein

47
Q

what is the isoelectric point of calcium caseinate?

A

4.6

48
Q

An unknown protein sample was tested for the presence of sulfur. The positive result of this test is confirmed with the formation of a:

a. White precipitate
b. Black precipitate
c. Yellow precipitate
d. Blue precipitate

A

c. Yellow precipitate

49
Q

Which if the following is a denaturing agent?

a. Strong acids
b. Heat
c. Salts of heavy metals
d. All of the above

A

d. All of the above

50
Q

An antidote for metallic poisoning

A

Egg white

P2 Lab (3 decks)

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