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Food Flashcards

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AP® Biology flashcards Biology 101 flashcards
1
Q

Why is water important?

A
  1. Main component of cytoplasm and bodily fluids
  2. Participates in reactions
  3. Solvent
  4. Absorber of heat
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2
Q

What do proteins contain?

A

Carbon hydrogen oxygen and nitrogen

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3
Q

What is a protein?

A

At least 200 amino acids

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4
Q

What is cellulose used for?

A

Main component of cell wall

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5
Q

What is an anabolic reaction?

A

Anabolic reactions convert smaller molecules into larger ones

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6
Q

What is a water-soluble vitamin?

A

Vit C ( ascorbic acid)

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7
Q

What is a fat soluble vitamin?

A

Vitamin D (calciferol)

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8
Q

What is a biomolecule?

A

A chemical made inside a living thing

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9
Q

What is a catabolic reaction?

A

A reaction where complex molecules are broken down into simpler ones

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10
Q

What are the characteristics of globular proteins?

A
  1. Rounded shape

2. Lots of folding

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11
Q

What is a phospholipid?

A

A glycerol w/ 2 fatty acids and a phosphate

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12
Q

What is a triglyceride?

A

A glycerol w/ 3 fatty acids

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13
Q

Difference between carbs and lipids?

A

Carbs are found in a simple ratio, lipids are not

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14
Q

What are lipids?

A

Fats and oils

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15
Q

What is glycogen for?

A

Energy storage in animals

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16
Q

What is the metabolic role of carbs and lipids?

A

Provide energy from respiration

17
Q

What is the metabolic role of proteins?

A
  1. To form hormones
  2. Enzymes
  3. Antibodies
18
Q

What are minerals for?

A
  1. To form hard tissue eg. Bones and cell wall
  2. To form soft tissue eg. Muscle
  3. Biomolecules
19
Q

What is the metabolic role of vit D?

A

To absorb Ca from s.intestine

20
Q

What is a polysaccharide?

A

Many sugar units bonded together

21
Q

What is starch for?

A

Energy storage in plants

22
Q

What is a disaccharide?

A

2 sugar units bonded together

23
Q

What are monosaccharides?

A

1 sugar unit

24
Q

What is the chemical formula for carbs?

A

Cx(H2O)y X=Y

25
Q

What is the metabolic role of vit C?

A

Form connective tissue

26
Q

Characteristics of fibrous proteins?

A
  1. Long fibres
  2. Tough
  3. Little/ no folding
27
Q

What is a peptide?

A

Less than 20 amino acids

28
Q

What is a polypeptide?

A

More than 20 amino acids

29
Q

What chemicals are used to test for protein?

A

Sodium hydroxide and copper sulfate

30
Q

What chemicals are used to test for reducing sugars?

A

Benedict’s soln

31
Q

What is the colour change in the presence of protein?

A

Blue to purple

32
Q

What is the colour change in the presence of reducing sugars?

A

Blue to brick red

Biology (25 decks)

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