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old GCSE Biology > Diet + Digestion (mocks) > Flashcards

Diet + Digestion (mocks) Flashcards

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1
Q

Give 2 examples of monosaccharides

A

Glucose and fructose

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2
Q

What are starch and glycogen made of?

A

Many molecules of glucose joined together.

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3
Q

What are the basic units of carbohydrates?

A

Simple sugars (eg glucose and fructose)

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4
Q

Describe the test for reducing sugars (monosaccharides and disaccharides).

A

Add Benedict’s reagent. Heat. Blue -> brick red.

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5
Q

Describe the test for starch

A

Add iodine. Orange/brown-> blue/black

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6
Q

Describe the test for lipids.

A

Emulsion test. Mix substance with ethanol. Add to test tube of water. Turns into a milky emulsion.

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7
Q

Describe the test for proteins

A

Biuret reagent. Blue -> lilac/purple.

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old GCSE Biology (35 decks)

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