Organisation

Question 1

What does the digestive system provide the body with?

Answer 1

Nutrients

Question 2

How can you prevent Coronary heart disease?

Answer 2

If they improve their diet and do more exercise

Question 3

Define a tissue?

Answer 3

A group of cells with a similar structure and function

Question 4

Define the term organs?

Answer 4

Organs are aggregations of tissues performing specific functions

Question 5

What do digestive enzymes do?

Answer 5

convert food into small soluble molecules that can be absorbed into the bloodstream.

Question 6

What does Carbohydrases do?

Answer 6

Breaks down carbohydrates into simple sugars

Question 7

What is Amylase and what does it do?

Answer 7

It is a carbohydrase that breaks down starch

Question 8

What does protease do?

Answer 8

Breaks down proteins into amino acids

Question 9

What does lipase do?

Answer 9

Breaks down fats into fatty acids and glycerol

Question 10

Where is bile made and stored?

Answer 10

It’s made In the liver and stored in the gal bladder.

Question 11

What pumps blood around the body in a double circulatory system.

Answer 11

The heart

Question 12

What does the right ventricle do?

Answer 12

pumps blood to the lungs where gas exchange takes place.

Question 13

What does the left ventricle do?

Answer 13

Pumps blood around the rest of the body

Question 14

What are the 3 different types of blood vessels that the human body contains?

Answer 14

.arteries
.veins
.capillaries

Question 15

What is the resting heart rate controlled by?

Answer 15

by a group of cells located in the right atrium that act as a pacemaker.

Question 16

Define blood?

Answer 16

Blood is a tissue consisting of plasma, in which the red blood cells, white blood cells and platelets are suspended.

Question 17

What is coronary heart disease?

Answer 17

layers of fatty material build up inside the coronary arteries, narrowing them.

Question 18

How are stents helpful when you have coronary heart disease?

Answer 18

Stents are used to keep the coronary arteries open

Question 19

Where does coronary heart disease reduce the flow of blood?

Answer 19

Coronary arteries

Question 20

How does the coronary arteries get narrowed?

Answer 20

layers of fatty material build up inside the coronary arteries, narrowing them.

Question 21

What happens if the heart valves may become faulty?

Answer 21

It will prevent the valve from opening fully

Question 22

What can patients have after their heart has a leak or stops working?

Answer 22

A heart and lungs Doner

Question 23

Define health?

Answer 23

Health is the state of physical and mental well-being.

Question 24

What are 2major causes of I’ll health?

Answer 24

Communicable diseases and non communicable diseases

Question 25

What are some simple factors of I’ll health?

Answer 25

Diet, stress and life situations

Question 26

How many different types of diseases effect the body?

Answer 26

Defects in the immune system mean that an individual is more likely to suffer from infectious diseases. • Viruses living in cells can be the trigger for cancers. • Immune reactions initially caused by a pathogen can trigger allergies such as skin rashes and asthma. • Severe physical ill health can lead to depression and other mental illness.

Question 27

Risk factors that increase rate of disease?

Answer 27

.aspects of someone’s life style .substances in the persons body or environment

Question 28

Risk factors for obesity, alcohol, smoking, cancer?

Answer 28

Obesity = risk factor for Type 2 diabetes. Alchohol = effects the liver and brain Smoking = lung disease, lung cancer and unborn babies Cancer = Carcinogens, including ionising radiation, as risk factors in cancer.

Question 29

How are many diseases caused?

Answer 29

interaction of a number of factors.

Question 30

What are benign tumours?

Answer 30

are growths of abnormal cells which are contained in one area, usually within a membrane. They do not invade other parts of the body.

Question 31

Malignant tumour cells are what disease?

Answer 31

Cancer

Question 32

Hat do malignant tumours do?

Answer 32

They invade neighbouring tissues and spread to different parts of the body in the blood where they form secondary tumours.

Question 33

What is the leaf in a plant?

Answer 33

A plant organ

Question 34

Plant • • • • • tissues include:

Answer 34

epidermal tissues palisade mesophyll spongy mesophyll xylem and phloem meristem tissue found at the growing tips of shoots and roots.

Question 35

What does the root stem and leaves form?

Answer 35

a plant organ system for transport of substances around the plant.

Question 36

Root hair cells are adapted for the?

Answer 36

efficient uptake of water by osmosis, and mineral ions by active transport.

Question 37

What do xylem tissues do?

Answer 37

transports water and mineral ions from the roots to the stems and leaves.

Question 38

What is the role of the stomata and guard cells?

Answer 38

are to control gas exchange and water loss.

Question 39

What do phloem tissues do?

Answer 39

transports dissolved sugars from the leaves to the rest of the plant for immediate use or storage. The movement of food molecules through phloem tissue is called translocation