Heart and Digestion

Question 1

What is chemical digestion

Answer 1

Involves the use of enzymes to break down the food

Question 2

What do amylases break down

Answer 2

Carbohydrates

Question 3

What do proteases break down

Answer 3

Protein

Question 4

What do lipases break down

Answer 4

Lipids

Question 5

what is the substance that enzymes breakdown

Answer 5

Substrate

Question 6

How do enzymes die

Answer 6

When they become over heated

Question 7

In the digestion diagram from ur mouth to ur anus what’s in the middle

Answer 7

Mouth 
Salivary glands 
Epiglottis 
Oesophagus 
Liver 
Gall bladder 
Stomach 
Pancreas 
Small intestine 
Large intestine 
Appendix 
Rectum 
Anus

Question 8

describe function of the villi

Answer 8

Once food is broken down by enzymes into molecules in ur small intestine the molecules are absorbed through finger shaped villi

Question 9

Describe shape of villi

Answer 9

Villi are shaped like fingers to maximise surface area increasing the efficiency of nutrient absorption into the capillaries these nutrients are transported to cells that need them

Question 10

From top to bottom label the villi

Answer 10

Epithelium cells 
Capillaries 
Lacteal
Veins 
Lymph vessel

Question 11

From top to bottom label the heart

Answer 11

Aorta 
Superior vena cava 
Left atrium 
Right atrium 
Right ventricle 
Left ventricle 
Inferior vena cava

Question 12

How much blood in a human

Answer 12

5 litres or bucket full

Question 13

How many times do RBC travel around the body

Answer 13

300 000 times 120 days

Question 14

Where are RBC manufactured

Answer 14

1.7 million RBC are manufactured in the bone marrow each second

Question 15

Plasma

Answer 15

Plasma is found in 55% of blood and is a straw coloured fluid. It contains serum and fibrinogen

Question 16

RBC

Answer 16

Lacks a nucleus and are biconcave it also carries oxygen and a pigment haemolglobin

Question 17

WBC

Answer 17

Contains a nucleus making them larger they also fight illness and infection

Question 18

Platelets

Answer 18

They clot blood vessels and prevent germs getting in

Question 19

Structure and function arteries

Answer 19

They transport blood from your heart

Arteries have thick elastic walls and carry blood under high pressure away from your heart

Question 20

Structure and function veins

Answer 20

Transport blood back to the heart

Thin walls and posses valves

Question 21

Structure and function capillaries

Answer 21

Capillaries transport substances such as oxygen and nutrients to cells and remove wastes

Question 22

Where are capillaries found

Answer 22

Between arteries and veins

Question 23

Incisors

Answer 23

Act like scissors, used for biting and cutting,

Chiseled edge and broad thin crown

Question 24

Canines

Answer 24

Fang like, tear and grasp food, sharp pointed

Question 25

Molars and premolars

Answer 25

Have cusps used for grinding and crushing

Question 26

What is peristalsis

Answer 26

Help push down food in the Oesophagus and small intestine

Question 27

What coeliac disease

Answer 27

Intolerant to gluten

Question 28

Where are the ventricles

Answer 28

Bottom

Question 29

Where are the atriums

Answer 29

Top

Question 30

Where does the blood pumped from the left side got to

Answer 30

Everywhere except lungs

Question 31

Where does the blood pumped from the right side go to

Answer 31

The lungs

Question 32

What is systolic pressure

Answer 32

When ur blood pressure is at its highest as the heart contracts

Question 33

What is diastolic pressure

Answer 33

Blood pressure at its lowest where the heart is relaxed

Question 34

What are valves

Answer 34

Help blood to only travel in one direction

Question 35

What is a electrocardiograph

Answer 35

Shows electrical activity of a persons heart

Question 36

What is mechanical digestion

Answer 36

Also know as physical digestion as u use ur teeth to bite tear crush and grind food