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Lab Practicals > Lab Practical #1 > Flashcards

Lab Practical #1 Flashcards

1
Q

Name the 7 functional groups?

A

Hydroxyl

Carbonyl

Carboxyl

Amino

Phosphate

Methyl

Sulfhydryl

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2
Q
  1. What does the Sudan IV test test for?
  2. What is a positive result?
  3. What is a negative result?
A
  1. Lipid
  2. Red layer
  3. Pink tint
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3
Q

What are some characteristics of Cysteine?

A

3 carbon
1 amino group
1 amino group
1 Sulfhydryl group

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5
Q

OH stands for which functional group?

A

Hydroxyl

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6
Q
  1. What does the biuret test test for?
  2. What is a positive result?
  3. What is a negative result?
A
  1. Protein
  2. Dark blue - purple
  3. Light blue
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7
Q

What is the functional group of glucose?

A

Hydroxyl

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8
Q

C = O stands for what functional group?

A

Carbonyl

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9
Q

What 2 functional groups make up all amino acids?

A

Amino + carboxyl

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10
Q

What is the independent variable?

A

A variable that does not change

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11
Q

H2N stands for what functional group?

A

Amino

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12
Q

What is the formula for density?

A

Density = mass / volume

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13
Q

What is a dependent variable?

A

A variable that depends on other factors; changes

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14
Q

What situations would you use a water displacement test to find the volume of an object?

A

For an object that is not easily measurable. (Ex small rock)

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15
Q

SH stands for what functional group?

A

Sulfhydryl

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16
Q

What is the equation for finding mass?

A

Mass = volume x density

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17
Q

What is the purpose of a control group?

A

It is used as a comparison to the experimental group

18
Q

What are some characteristics of Serine?

A

3 carbon
1 amino group
1 carboxyl group

19
Q
  1. What does iodine test for?
  2. What is a positive result?
  3. What is a negative result?
A
  1. Starch
  2. Black
  3. Brown
20
Q
  1. What does the Benedict’s test test for?
  2. What is a positive result?
  3. What is a negative result?
A
  1. Reducing sugars
  2. Green - red
  3. Blue
21
Q

What are some distinct characteristics of Aspartic Acid?

A

4 carbon molecules
Amino group
2 carboxyl groups

24
Q

What are some characteristics of Valine?

A

4 carbon
1 methyl group
1 amino group
1 carboxyl group

26
Q

What are the 4 amino acids?

A

Valine
Serine
Cystine
Aspartic acid

Lab Practicals (1 decks)

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