Food and food tests 🍔🍟

Question 1

One difference between fat and oils at room temperature

Answer 1

Fats are solid,
Oils are liquid

Question 2

One difference between a triglyceride and a phospholipid

Answer 2

Triglyceride has three fatty acids,
Phospholipids have two fatty acids

Question 3

One metabolic role for lipids in cells

Answer 3

Energy

Question 4

One fat soluble vitamin

Answer 4

D

Question 5

One deficiency disorder for Vitamin D

Answer 5

Rickets

Question 6

Two element present in dissolved salts

Answer 6

Sodium,
Calcium

Question 7

One trace element in the human diet

Answer 7

Iron

Question 8

Three chemical elements found in lipids

Answer 8

Carbon, hydrogen, oxygen,
CHO

Question 9

Basic unit that makes up lipids

Answer 9

3 fatty acids joined to a glycerol

Question 10

What type of metabolic pathway is respiration

Answer 10

Catabolic

Question 11

What is meant by the term Polysaccharide

Answer 11

Many sugar molecules

Question 12

Storage polysaccharides found in animals

Answer 12

Glycogen

Question 13

Two main reasons why food is required by all living organisms

Answer 13

Energy source and
Growth

Question 14

Ratio of hydrogen atoms to oxygen in a carbohydrate

Answer 14

2:1

Question 15

Structural role of lipids

Answer 15

Membranes

Question 16

Main structural polysaccharide in plants

Answer 16

Cellulose

Question 17

Composition of a triglyceride molecule

Answer 17

3 fatty acids joined to a glycerol

Question 18

Name test or chemicals used to demonstrate the presence of proteins

Answer 18

Biuret

Question 19

Name a fibrous protein

Answer 19

Keratin

Question 20

Where would you find keratin in the human body

Answer 20

Hair and nails

Question 21

What mineral except calcium is required by plants and it’s role

Answer 21

Magnesium,

Question 22

Two reasons organisms need water

Answer 22

Transport,
Turgidity in cells

Question 23

Metallic element in haemoglobin

Answer 23

Iron

Question 24

Food biomolecule identified by the use of Benedict’s of Fehling’s solution

Answer 24

Reducing sugars

Question 25

Non metallic element other that C, H, O found in proteins

Answer 25

Sulfur

Question 26

Metabolic role of proteins in human body

Answer 26

Enzymes

Question 27

Structural role of keratin in human body

Answer 27

Component of hair and nails

Question 28

Where would you find phospholipids in human cells

Answer 28

Membranes

Question 29

Role of named mineral except iron required in the human body

Answer 29

Calcium, Maintaining bone health

Question 30

Approx percentage of water, by mass, in a human cell

Answer 30

77%

Question 31

Simplest units of carbohydrates

Answer 31

Monosaccharides

Question 32

Catabolic process that produces monosaccharides

Answer 32

Digestion

Question 33

Common value of y in the carbohydrates used for energy by human cells

Answer 33

6

Question 34

Polysaccharide, other than cellulose, commonly found in plants

Answer 34

Deoxyribose

Question 35

Name a monosaccharide

Answer 35

Glucose

Question 36

One way amino acids differ from monosaccharides in terms of chemical composition

Answer 36

Contains N

Question 37

What do carbohydrates and fats have in common, in terms of chemical composition

Answer 37

Mostly composed of C, H, and O

Question 38

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

Answer 38

Different fatty acids

Question 40

What food type can be identified in the lab by using Sudan III or brown paper

Answer 40

Fats

Question 41

What colour indicates a strong positive result of the Fehling’s or Benedict’s test for reducing sugars

Answer 41

Red

Question 42

How many amino acids are found in proteins

Answer 42

20

Question 43

In relation to a human diet, what is a trace element

Answer 43

Small amount needed

Question 44

Example of a trace element

Answer 44

Iron

Question 45

One way oil differs from fat

Answer 45

Oil is liquid at room temperature, fats are solid

Question 46

Two groups of vitamins depending on their solubility

Answer 46

Fat soluble, Water soluble

Question 47

Example of catabolic reaction In a cell

Answer 47

Respiration

Question 48

In carbohydrates what two elements are in the ratio 2:1

Answer 48

Hydrogen and oxygen

Question 49

Polysaccharide other than cellulose

Answer 49

Starch

Question 50

Where in Plant cell would you find cellulose

Answer 50

Cell wall

Question 51

Test of chemicals used to demonstrate the presence of a reducing sugar

Answer 51

Benedict’s or Fehling’s

Question 52

Is energy release anabolic or catabolic

Answer 52

Catabolic