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Biology > Food > Flashcards

Food Flashcards

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AP® Biology flashcards Biology 101 flashcards
1
Q

State a disorder due to dietary deficiency of the vitamin D.

A

Rickets

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2
Q

Give any two functions of minerals in organism.

A

1- used to form haemoglobin

2- strenghtens bones and teeths

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3
Q

How does a phospholipid differ from a fat?

A

Phospholipid: contains phosphate
Fat: does not contain phosphate

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4
Q

Name a monosaccharide

A

Glucose

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5
Q

Give the formula of Glucose

A

C6 H12 O6

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6
Q

Name a polysaccharide

A

Starch

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7
Q

how do amino acids differ from monosaccharide in terms of chemical composition?

A

Amino acids contain nitrogen

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8
Q

How may one fat differ from another, in terms of chemical composition?

A

Fatty acid chains joined to glycerol molecule may be different

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9
Q

Which food type may be identified in the laboratory by the use of Sudan ||| or brown paper?

A

Indicates presence of fat

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10
Q

Give one role for a named mineral in plants.

A

Calcium needed for cell walls

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11
Q

What colour indicates a strong positive result of the Benedict’s test for reducing sugar?

A

Brick red colour

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12
Q

Give a role of lipids in cells

A

Forming cell membrane

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13
Q

Give a role of water in the human body other than as a component of cytoplasm and body fluids.

A

When body sweats, it cools the body

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14
Q

How many common amino acids are found in proteins?

A

20

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15
Q

In relation to the human diet, what is meant by a trace element?

A

Element that is only required in tiny amounts

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16
Q

Give an example of a trace element.

A

Iron

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17
Q

State one way in which oil differs feom a fat

A

fats are solid a room temperature

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18
Q

Vitamins may be divided into two groups depending upon their solubility.
Name these two groups.

A

1) water soluble

2) fat soluble

19
Q

What is a triglyceride?

A

Made up of one molecule of glycerol joined to three fatty acids

20
Q

In carbohydrates,which two elements are in the ratio 2:1?

A

Hydrogen: Carbon

21
Q

Cellulose is a polysaccharide. Explain the term polysaccharide.

A

Poly= many

Many sugar units joined together

22
Q

Name a polysaccharide other than cellulose.

A

Starch

23
Q

Where precisely in a plant cell would you expect to find cellulose.

A

Cell wall

24
Q

Name a test used to demonstrate the presence of a reducing sugar.

A

Benedict’s reagent

25
Q

Biomolecules of the general formula Cx(H2O)y are examples of?

A

Carbohydrates

26
Q

Give two functions of water in a living organism.

A
  1. Transport

2. Participates in chemical reactions

27
Q

Is energy release a feature of anabolic or catabolic reaction?

A

Catabolic

28
Q

Name the test used to detect the presence of protein in a food sample.

A

Biuret Test

29
Q

Give an example of a catabolic reaction in an animal

A

Respiration

30
Q

Give an example of an anabolic reaction in a plant

A

Photosynthesis

31
Q

Give an example of a fat-soluble vitamin.

A

Vitamin A

32
Q

Give an example of a reducing sugar

A

Glucose

33
Q

Give an example of a trace element in the human diet

A

Zinc

34
Q

In the human diet zinc, iron and copper are examples of ?

A

Minerals

35
Q

The walls of xylem vessels are reinforced with ?

A

Lignin

36
Q

Where in a cell would you expect to find phospholipids?

A

Cell membrane

37
Q

Vitamin ___ is an example of a water-soluble vitamin.

A

C

38
Q

Name a disorder associated with a deficiency of Vitamin C .

A

scurvy

39
Q

What are the final products of the digestion of a protein?

A

Amino acids

40
Q

Cellulose is an example of a structural ___

A

Carbohydrate

41
Q

Fats are composed of oxygen, hydrogen and __?

A

Carbon

42
Q

When an iodine solution is added to a food sample and remains red-brown in colour, ___ is absent

A

Starch

43
Q

When two monosaccharides unite they form a ___?

A

Disaccharide

44
Q

Name a fat-soluble vitamin.

A

Vitamin D

Biology (29 decks)

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