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Botany Lab > Experiment 3 > Flashcards

Experiment 3 Flashcards

1
Q

Reagent hat is used to react with starch

A

Lugol’s Solution

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2
Q

Other name of Lugol’s Solution

A

Potassium Iodide (KI)

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3
Q

What happens when the Lugol’s solution comes into contact with starch

A

Light amber to Blue-black solution

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4
Q

What reagent is used to react with Protein

A

Biuret Solution

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5
Q

Other name for Biuret Solution

A

Carbamylurea

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6
Q

How to identify a positive control with the Biuret solution

A

Blue-Violet solution

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7
Q

What reagent is used for identifying Lipids

A

Sudan IV

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8
Q

Other name for Sudan IV

A

Lysochrome fat soluble dye

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9
Q

Chemical formula of Sudan IV

A

C24H20N4O

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10
Q

What happens when Sudan IV comes into contact with lipids

A

Deep-colored solution

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11
Q

H2O + Lugol’s solution

A

No reaction (-)

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12
Q

Glucose + Lugol’s solution

A

No reaction (-), red to yellow-colored solution

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13
Q

Chewed Biscuits + Lugol’s solution

A

(+) Blue-Black

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14
Q

Milk + Lugol’s solution

A

No reaction (-), * sometimes has starch

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15
Q

Egg Albumin + Lugol’s solution

A

No reaction (-)

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16
Q

vegetable Oil + Lugol’s solution

A

No reaction (-)

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17
Q

Why does chewed biscuit have a positive reaction with Lugol’s solution

A

Because of amylase

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18
Q

H2O + Biuret Solution

A

No reaction (-)

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19
Q

Glucose + Biuret Solution

A

No reaction (-) Brick red

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20
Q

Chewed Biscuits + Biuret Solution

A

No reaction (-)

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21
Q

Milk + Biuret Solution

A

(+) Purple solution

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22
Q

Egg albumin + Biuret Solution

A

(+) Violet solution

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23
Q

Vegetable oil + Biuret Solution

A

No reaction (-)

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24
Q

H2O + Sudan IV

A

No reaction (-)

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25
Q

Glucose + Sudan IV

A

No reaction (-)

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26
Q

Chewed Biscuits + Sudan IV

A

No reaction (-)

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27
Q

Milk + Sudan IV

A

(+) with fats, no reaction (-) non-fat

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28
Q

Egg + Sudan IV

A

No reaction (-)

*if egg yolk + Sudan IV (+)

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29
Q

Vegetable oil + Sudan IV

A

(+)

30
Q

Scientific name of coconut

A

Cocos nucifera

31
Q

Reagent used for Cocos nucifera shell

A

18% alcoholic phloroglucinol-sulfuric acid solution

32
Q

Cocos Nucifera acted as the ______ for the experiment

A

Buri

33
Q

Cocos nucifera shell contains ____ which turns ____ upon staining

A

Lipid, Red

34
Q

Functions of lignin

A

Provides structural support and protection for the upward growth of plants

Enables long-distance water transport

35
Q

Cocos nucifera shell both have ________ and ________

A

Primary and Secondary cell wallls

36
Q

H2O + gtt of food coloring

A

Diffused immediately

37
Q

Chemical formula for ethanol

A

C2H6O

38
Q

EtOH (ethyl alcohol) + gtt of food coloring

A

diffused in a while

39
Q

Baby oil + gtt of food coloring

A

immiscible

40
Q

True or False: Lignin in a tree is stronger than a coconut tree

A

False

41
Q

The movement of molecules from an area of higher concentration to an area of lower concentrations

A

Diffusion

42
Q

“The spreading out”

A

Diffusion

43
Q

Factors that affect diffusion

A

Temperature

Heaviness

44
Q

True of False: the heavier the solvent the faster the diffusion

A

False

45
Q

Potatoes soaked in water ____ and _______

A

swelled and become crisp

46
Q

Potatoes soaked in salt solution _______

A

Shrank

47
Q

The higher concentration of the shalt, the _______ the decrease in ______ of the potato

A

Higher, mass

48
Q

Movement of molecules from an area of lower water concentration to an area of higher water concentration

A

Osmosis

49
Q

Osmosis: movement of molecules from a ______ to a ________

A

Diluted solution, Concentrated solution

50
Q

Prevents the Hydrilla cells from completely collapsing

A

Osmotic pressures

51
Q

Main cause of support in many plants

A

Osmotic pressure

52
Q

Osmotic pressure: _________ that must be applied to a solution to ____________ through a _________

A

Minimum pressure, halt the flow of solvent molecules, semi-permeable membrane

53
Q

Vacuoles are crucial for ______ and ________

A

growth, development

54
Q

Vacuoles are _______ in size

A

highly dynamic

55
Q

Functions of Vacuoles

A

Storage

Transport

Intercellular stability

Responds readily to injury

56
Q

Antiseptic

A

Human

57
Q

Disinfectant

A

inanimate objects

58
Q

Examples of osmosis in gargling

A

You gargle in the throat with the aid of air and is usually medicated

59
Q

True or False: Mouthwash also aids in disinfecting the throat, albeit limitedly

A

False, only for the mouth

60
Q

What is the volume-volume percentage of mouthwash

A

1% v/v

61
Q

Moist and water environments are good habitats for bacterias

A

True

62
Q

True or False: Drugs are in suspension forms to increase the rate of diffusion in the body

A

true

63
Q

The higher the temperature the _______ its solubility

A

higher

64
Q

Boiling point of water

A

100 C

65
Q

Freezing point

A

0 C

66
Q

True of False: Consistency is directly proportional to diffusion

A

False, they are inversely proportional (1 / diffusion)

67
Q

True or false: Temperatures are directly proportional to diffusion

A

True

68
Q

Types of solubility of materials in pharma

A

Miscible

Immiscible

69
Q

What does SNL mean

A

Supernatant liquid

70
Q

A clear liquid free of precipitate that forms during the chemical process of precipitation and is located above the solid part during settling

A

Supernatant liquid

71
Q

Residue

A

Substances that were not dissolved

72
Q

Product of filtration

A

filtrate

Botany Lab (25 decks)

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