Random

Question 1

Testing for osmosis etc

Answer 1

Potato
Agar and phenolphthalein
Busking tubing

Question 2

Carbohydrates molecules

Answer 2

Carbon
Hydrogen
Oxygen

Question 3

Proteins molecules

Answer 3

Carbon
Nitrogen
Hydrogen
Oxygen

Question 4

Lipids molecules

Answer 4

Carbon
Hydrogen
Oxygen

Question 5

Carbohydrates- what they are made of

Answer 5

Glucose/maltose in a long chain

Question 6

What are proteins made of?

Answer 6

Long chains of amino acids

Question 7

What are lipids made of?

Answer 7

Fatty acids and glycerol

Question 8

How can you test for glucose?

Answer 8

Add Benedict’s solution
Heat
Blue to brick red

Question 9

How can you test for starch?

Answer 9

Iodine turns from browny ornate to blue black

Question 10

Function of carbohydrates

Answer 10

Provide energy

Question 11

Function of lipids

Answer 11

Provide energy

act as an energy store provide insulation

Question 12

Function of proteins

Answer 12

Needed for growth and repair of tissues, and to provide energy in emergencies

Question 13

Vitamin a function

Answer 13

Helps to improve vision and keep your skin and hair healthy

Question 14

Vitamin C function

Answer 14

Sticks together cells lining surfaces in the body

Question 15

Vitamin D function

Answer 15

Helps bones absorb calcium and phosphorus

Question 16

Dietary fibre function

Answer 16

Aids the movement of food through the gut

Question 17

Calcium function

Answer 17

Make bones and teeth

Question 18

Iron function

Answer 18

Make haemoglobin for healthy blood

Question 19

Calculation of energy in food

Answer 19

Mass of water X temperature change of water x 4.2

Question 20

Where is produced?

Answer 20

The liver

Question 21

Where is bile stored?

Answer 21

The gall bladder

Question 22

What is the role of bile?

Answer 22

Neutralise stomCh acid

Emulsifying lipids

Question 23

Adaptions of villus

Answer 23

Network of blood capillaries
Microvilli
Single permeable layer of surface cells

Question 24

Mouth

Answer 24

Salivary glands produce amylase

Teeth break down food mechanically

Question 25

Stomach

Answer 25

Pummels food with muscular walls
Produces pepsin
Produced hydrochloric acid to kill bacteria and provide good conditions for enzymes

Question 26

Pancreas

Answer 26

Produces protease, amylase and lipase

Where nutrients are absorbed out of the alimentary canal into the body

Question 27

Large intestine

Answer 27

Where excess water is absorbed from the food

Question 28

Gall bladder

Answer 28

Where bile is stored

Question 29

Oesophagus

Answer 29

Muscular tube that connects the mouth to the stomach

Question 30

How does peristalsis work?

Answer 30

Squeezing actor

Waves of circular muscle contractions

Question 31

Ingestion

Answer 31

Putting food or drink into your mouth

Question 32

Digestion

Answer 32

The break down of large, insoluble molecules into small, soluble molecules

Question 33

Absorption

Answer 33

The process of moving molecules through the walls of the intestines into the blood

Question 34

Assimilation

Answer 34

When digested molecules move into body cells and become part of the cells

Question 35

Egestion

Answer 35

Getting rid of unwanted waste from the body

Question 36

Aerobic respiration

Answer 36

Glucose + oxygen –> Carbon dioxide + water

Question 37

Aerobic respiration chemical equation

Answer 37

C6H12O6 + 6O2 –> 6CO2 + 6H2O

Question 38

Anaerobic respiration in yeast cells

Answer 38

Glucose –> ethanol + Carbon dioxide

Question 39

Anaerobic respiration in animal cells

Answer 39

Glucose–>lactic acid

Question 40

How to test for hear production during respiration

Answer 40

Use germinating peas in a vacuum flask