Digestion- Mouth And Teeth

Question 1

What allows for chemical reactions to take place

Answer 1

Water

Question 2

What promotes specific chemical reactions in the body

Answer 2

Vitamins

Question 3

What is used for muscle contraction

Answer 3

Minerals

Question 4

What supports and cushions organs

Answer 4

Lipids

Question 5

What provides bulk within the diet essential for intestinal health

Answer 5

Carbohydrates

Question 6

What is a storage of energy

Answer 6

Lipids

Question 7

What aids in thermoregulatory system

Answer 7

Water

Question 8

What is important in maintenance and growth of bones and teeth

Answer 8

Minerals

Question 9

What supplies energy to the cells

Answer 9

Carbohydrates

Question 10

What is used for growth and repair of cells and tissues

Answer 10

Proteins

Question 11

What is the structure of the oral cavity

Answer 11

Contains tongue, teeth and salivary glands

Question 12

What is the oral cavity also known as

Answer 12

Mouth

Buccal

Question 13

What is the three functions of the oral cavity

Answer 13

Prehension

Mastication

Lubrication

Question 14

What is prehension

Answer 14

Picking food up

Question 15

What is mastication

Answer 15

Breaking food up via chewing

Question 16

What is lubrication

Answer 16

Coating food with saliva making it easier to swallow

Question 17

What is the structure of the tooth

Answer 17

Pulp

Dentine

Enamel

Question 18

Tooth:
What is the pulp

Answer 18

In centre

Contains blood capillaries and nerves

Question 19

Tooth:
What is dentine

Answer 19

Calcified tissue

Forms the main part of the tooth

Question 20

Tooth:
What is enamel

Answer 20

Made up of minerals which protect underlying structures

Surface of each tooth is covered

Question 21

What are the four types of teeth

Answer 21

Canines
Incisors
Molars
Premolars

Question 22

What is the function of canines

Answer 22

Holding prey

Tearing tissue

Question 23

What is the function of incisors

Answer 23

Holding prey

Tearing tissue- hold through flesh

Question 24

What is the function of premolars

Answer 24

Cuts flesh

Grind food

Not as sharp

Smaller

Question 25

What is the function of the molars

Answer 25

Grind food

Question 26

EXAM QUESTION:
Explain two features of dental structure for herbivores

Answer 26

Molars and premolars have flat grinding surface- allows to tear flesh and grind food meaning easier to swallow

Incisors are sharp- cut and bite

Question 27

EXAM QUESTION:
Explain two dental structure for carnivores

Answer 27

Long, pointed canines- used to catch and kill their prey, tear flesh, pierce skin

Molars- serrated to tear meat

Question 28

What are birds beaks made from

What is the shape of the beak adapted to

What do birds not have

Answer 28

Made of bone, keratin and blood vessels

The type of food they eat

Teeth or chew their food

Question 29

EXAM QUESTION: 4 marks
Explain two way birds beaks are adapted to feed

Answer 29

Strong and hard(1) to break nuts(1)
Hooked(1) to tear meat(1)

Question 30

Dental formulas
What is the equation for working the dental formulas

Answer 30

Do bottom or top and see how many of each and then add all the top ones together and times by two

Question 31

Dental formulas
Work it out for dogs

Answer 31

Incisors- 3/3
Premolars- 4/4
Molars- 2/3
Canines- 1/1
3 + 3 + 4 + 4 + 2 + 3 + 1 +1- 21
21x2
42 teeth

Question 32

Dental formulas
Work it out for cats

Answer 32

Incisors- 3/3
Canines- 1/1
Molars- 1/1
Premolars- 3/2
Add theses all up which equals 15
15x2= 30
30 teeth

Question 33

Dental formulas
Work it out for cattle

Answer 33

Incisors- 0/4
Canines- 0/0
Premolars- 3/3
Molars-3/3
Add all up which equals 16
16 x2=32
32 teeth