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Biology LAB > Practical 1 (Sept 17th) > Flashcards

Practical 1 (Sept 17th) Flashcards

1
Q

Name the 4 organic compounds

A

Carbohydrates, Lipids, Proteins and Nucleic Acids

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2
Q

Testing Carbohydrates Requires:

A

Benedict’s

Reducing Sugars require Hydrochloric acid

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3
Q

What do you use to test for starches?

A

Lugoli’s (Iodine)

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4
Q

What do you need to test Lipids?

A

Chromatography paper

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5
Q

What do you need to test Protiens

A

Biurets

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6
Q

Hydrochloric acid tests for:

A

Reducing sugars in carbohydrates

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7
Q

Lugoli’s tests for:

A

Starches

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8
Q

Benedicts test for

A

Sugars in carbohydrates

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9
Q

Chromatography paper tests for

A

Lipids

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10
Q

Biurets tests for

A

Protien

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11
Q

What colors test positive for carbohydrate sugars?

A

Red, orange, yellow

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12
Q

What colors test positive for reducing sugars test?

A

Red, orange, yellow

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13
Q

Whats color indicates positive tests for starches

A

Black/ Blue

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14
Q

What indicates a positive test for lipids?

A

Oil spot

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15
Q

What color indicates a positive test for proteins ?

A

Purple/Lavender

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16
Q

Define Hypertonic

A

More concentrated

17
Q

What is the word for “more concentrated”

A

Hypertonic

18
Q

Define Hypotonic

A

Less concentrated

19
Q

Whats the word for “less concentrated”

A

Hypotonic

20
Q

Define Isotonic

A

Equal concentration

21
Q

Whats the word for “equal concentration”

A

Isotonic

22
Q

What does it mean when a membrane is “permeable” ?

A

Things can pass through it

23
Q

What does it mean when a membrane is “selectively permeable”

A

Only certain things can pass through it

24
Q

What is Osmosis?

A

A type of diffusion where particles seek equilibrium

25
Q

What is a Solvent?

A

Something that has something else dissolved into it (water typically)

26
Q

What is a solute?

A

Something that is dissolved into a solvent

Biology LAB (1 decks)

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