Just All Of Bilogy..

Question 1

What chemical is need for the starch test?

Answer 1

Iodine

Question 2

What chemical is needed for sugar test?

Answer 2

Benedict’s solution

Question 3

What chemical is needed to test for protein?

Answer 3

Biuret solution!

Question 4

What chemical is needed to test for fat?

Answer 4

Ethanol

Question 5

What is the initial colour and the final colour for the starch test?

Answer 5

Yellow brown- blue black

Question 6

What is the initial colour and the final colour for the sugar test

Answer 6

Blue-brick red

Question 7

What is the initial colour and the final colour for the protein test

Answer 7

Blue-lilac/purple

Question 8

What is the initial colour and the final colour for the fat test?

Answer 8

Clear-white emulsion

Question 9

How many kilojoules are there in 1g of carbohydrate

Answer 9

17 kilojoules

Question 10

How many kilojoules are there in 1g of fat?

Answer 10

38 kilojoules

Question 11

How many kilojoules are in 1g of protein?

Answer 11

17 kilojoules

Question 12

What is the word equation for finding out how much energy is in 1g of food?

Answer 12

Volume of water x rise in temperature x 4.2

Question 13

Why would energy value calculate from this practical be lower than the value given on the food label
(Give three reasons)

Answer 13

-heat lost in the atmosphere
-heat lost to apparatus
-The water was not stirred so the temperature may have been measured in a cooler area

Question 14

What is the word equation for tooth decay?

Answer 14

Bacteria+sugar ~> Acid+time=tooth decay

Question 15

What are the eight labels to a tooth?

Answer 15

Enamel
Dentine
Pulp cavity
Gum
Bone
Cement and fibre
Blood and nerve vessels
Root end opening

Question 16

What is the crown?

Answer 16

The pert of the tooth above the gum

Question 17

What is the root of the tooth?

Answer 17

The sort if the tooth below the gum

Question 18

What is the enamel?

Answer 18

The outer hard part of the tooth, above the dentine

Question 19

What is the dentine?

Answer 19

The inner soft layer beneath the enamel

Question 20

What is the pulp cavity?

Answer 20

The cavity which contains all the nerve and blood vessels

Question 21

What is the cement and fibre part of the tooth?

Answer 21

Responsible for holding the tooth into the gum

Question 22

What are the nerve and blood vessels of the tooth?

Answer 22

The nerve and blood vessels provide feeling- provides nutrients to the tooth

Question 23

What are the five processes of eating

Answer 23

Ingestion
Digestion
Absorption
Assimilation
Egestion

Question 24

What is ingestion?

Answer 24

Food taken into the body

Question 25

What is digestion?

Answer 25

The food is broken up into soluble pieces, this starts at the mouth with the chemical of starch and continues into the stomach and small intestines

Question 26

What is absorption?

Answer 26

The soluble pieces are absorbed into the blood stream and transported around

Question 27

What is assimilation?

Answer 27

The soluble products of digestion are taken into the cell in which they are used

Question 28

What is egestion?

Answer 28

The removal of waste in the body

Question 29

What nutrient is amylase found in?

Answer 29

Carbohydrates

Question 30

What nutrient is protease found in?

Answer 30

Protein

Question 31

What nutrient is Lipase found in?

Answer 31

Fat

Question 32

Where is amylase found?

Answer 32

Mouth, pancreas and small intestines

Question 33

Where is protease found at?

Answer 33

Stomach, pancreas and small intestines

Question 34

Where is lipase found in?

Answer 34

Pancreas and small intestines

Question 35

What kind of molecules do carbohydrates make?

Answer 35

Sugar molecules

Question 36

What kind of molecule do protease make?

Answer 36

Amnio acid molecule

Question 37

What kind of molecules do fats make?

Answer 37

Fat acids and glycerol molecules