Topic 2-Organisation

Question 1

How do you calculate the breathing rate?

Answer 1

Number of breathes/Number of minutes

Question 2

What does the tongue do?

Answer 2

Rolls food to the back of your mouth

Question 3

What does the Oesophagus do?

Answer 3

Contains cartilage - moves food to stomach

Question 4

What does the stomach do?

Answer 4

Contains hydrochloric acid which churns up and breaks down some food

Question 5

what does the large intestine do?

Answer 5

absorbs water vitamins and minerals

Question 6

what does the rectum do?

Answer 6

Stores the faeces

Question 7

What does the small intestine do?

Answer 7

Small digested molecules are absorbed

Question 8

What does the liver do?

Answer 8

Gets all of the products of digestion and distributes it ( a massive store of glucose)
it makes bile which emulsifies fats into globules increasing the surface are for lipase to break the fats/lipids down

Question 9

what does the pancreas do?

Answer 9

Releases digestive juices containing enzymes to break down food

Question 10

what do salivary glands do ?

Answer 10

Moistens food and contains enzymes which break down starch

Question 11

What does bile do?

Answer 11

Bile emulsifies fat into globules to increase the surface are that the enzymes can break down the fats or lipids

Question 12

what is muscle tissues function?

Answer 12

it contract to cause movement

Question 13

where is bile produced?

Answer 13

in the liver

Question 14

where is bile stored?

Answer 14

in the gall bladder

Question 15

where are most of the enzymes produced?

Answer 15

In the pancreas

Question 16

what is the function of glandular tissue?

Answer 16

releases hormones and enzymes

Question 17

what is the function of epithelial tissue?

Answer 17

Covers many parts of the body-line outer surface of organs

Question 18

What are the two main roles of the digestive system

Answer 18

Digestion - process of breaking down large food molecules into smaller molecules

Absorption - process of absorbing these small food molecules into the body

Question 19

what is the ….. for amylase
a) substrate
b)End Product
c) where is it produced

Answer 19

a)starch
b)maltose
c)salivary glands, pancreas, small intestine

Question 20

what is the ….. for protease
a) substrate
b) End Product
c) where is it produced

Answer 20

a)protein
b)amino acids
c)pancreas, small intestine, stomach

Question 21

what is the ….. for lipase
a) substrate
b)End Product
c) where is it produced

Answer 21

a) fats + lipids
b)glycerol and 3 fatty acids
c)pancreas, small intestine

Question 22

what is the ….. for maltase
a) substrate
b) End Product
c) where is it produced

Answer 22

a) maltose
b)glucose
c)small intestine

Question 23

where is bile stored?

Answer 23

in the gall bladder

Question 24

what is protein?

Answer 24

a long chain of amino acids

Question 25

what is a polypeptide chain?

Answer 25

a short chain of amino acids

Question 26

food test for a) Glucose b)Starch c) Protein d) Fats + Lipids

Answer 26

a)Benedict's solution and heat up- turns red b)Iodine-put directly on food- Turns bluey black c)Biuret Solution- A biuret solution directly on food or in a solution- turns purple d)Ethanol- add into oil-cloudy milky solution OR put fat/lipid on filter paper-goes transparent

Question 27

what are the factors that affect an enzyme?

Answer 27

•PH •Substrate concentration •enzyme concentration •temperature •surface area

Question 28

what is meant by the term optimum?

Answer 28

The perfect conditions of temperature and PH for the enzyme to work most effectively

Question 29

What is the optimum temperature for human enzymes?

Answer 29

37.5℃

Question 30

What is the optimum PH for salivary amylase?

Answer 30

6.5

Question 31

What is the optimum PH for phosphatose?

Answer 31

9

Question 32

What is the optimum PH for Pepsin?

Answer 32

1.5

Question 33

Enzyme PH level for lipase

Answer 33

slightly alkaline

Question 34

Enzyme PH level for protease

Answer 34

Low acidic(stomach-pepsin) and slightly alkaline(salivary glands)

Question 35

Enzyme PH level for amylase

Answer 35

slightly alkaline

Question 36

what is an organ

Answer 36

Organs are groups of distinct tissues that work together to perform a specific function.

Question 37

Breathing rate(breaths per minute)

Answer 37

Number of breaths/time in minutes

Question 38

What happens if someone has gall stones have to be removed

Answer 38

Remova of gall bladder means less bile, less bile means less emulsification of fats so lipase cant break fat down as much so this xcess fat would be excreted. So person would need to reduce and regulate

Question 39

How the heart works(The movement of blood between the ventricles and atria)

Answer 39

The walls of the atria contract, pushing blood into the relaxed ventricles. The walls of the ventricles contract, pushing blood out of the heart. At the same time, more blood will enter the now-relaxed atria. The cycle repeats.