Body Systems

Question 1

What is digestion?

Answer 1

Digestion is the process of mechanically and enzymatically breaking down food into substances for absorption into the bloodstream.

Question 2

The process of mechanically and enzymatically breaking down food into substances for absorption into the bloodstream.

Answer 2

Digestion

Question 3

What is mechanical digestion?

Answer 3

Mechanical digestion involves physically breaking down food substances into smaller particles to more efficiently undergo chemical digestion.

Question 4

Physically breaking down food substances into smaller particles to more efficiently.

Answer 4

Mechanical digestion

Question 5

What is chemical digestion?

Answer 5

Chemical digestion uses certain enzymes to break down nutrients, such as carbohydrates, proteins, and fats, into smaller molecules.

Question 6

Uses certain enzymes to break down nutrients, such as carbohydrates, proteins, and fats, into smaller molecules.

Answer 6

Chemical digestion

Question 7

What is respiration?

Answer 7

Respiration is a series of chemical reactions occurring inside cells.

Question 8

What are the main organs in the human respiratory system?

Answer 8

The lungs, the trachea and the diaphragm.

Question 9

How does the respiratory system work?

Answer 9

Breathing in, air enters the airways and travels down into the alveoli in the lungs. This is where gas exchange takes place.

Question 10

List the components of the circulatory system.

Answer 10

The primary components in the circulatory system are the heart, the blood vessels, arteries, veins and capillaries.

Question 11

What is the function of the heart?

Answer 11

The heart’s function is to pump blood around the body.

Question 12

What is the function of the arteries?

Answer 12

The arteries carry oxygen-rich blood from the heart to the body.

Question 13

What is the function of the veins?

Answer 13

Veins are blood vessels located throughout your body that collect oxygen-poor blood and return it to your heart.

Question 14

What is the functions of the capillaries?

Answer 14

They transport blood, nutrients and oxygen to cells in your organs and body systems.

Question 15

What is the structure of the heart?

Answer 15

Four chambers: two upper chambers known as the left atrium and right atrium and two lower chambers called the left and right ventricles. It is also made up of four valves which connect the chambers.

Question 16

What is excretion?

Answer 16

the way the body gets rid of wastes it has produced.

Question 17

the way the body gets rid of wastes it has produced.

Answer 17

Excretion

Question 18

Describe the excretory role of the lungs.

Answer 18

removal of carbon dioxide and some wate

Question 19

Describe the excretory role of the kidneys.

Answer 19

removal of urea, salt and water

Question 20

What are the functions of the skeleton?

Answer 20

support, protection, movement.

Question 21

How does the skeleton protect?

Answer 21

Protection – the bones of the skeleton protect the internal organs and reduce the risk of injury on impact.

Question 22

How does the skeleton aid in movement?

Answer 22

Movement –The bones act as levers and also form joints that allow muscles to pull on them and produce joint movements.

Question 23

How does the skeleton aid in support?

Answer 23

Support – the skeleton keeps the body upright and provides a framework for muscle and tissue attachment.

Question 24

What are ligaments?

Answer 24

A ligament connects bone to bone

Question 25

What function do ligaments serve?

Answer 25

usually serves to hold structures together and keep them stable.

Question 26

What are tendons?

Answer 26

A tendon is a fibrous connective tissue that attaches muscle to bone.

Question 27

What function do tendons serve?

Answer 27

Attach muscles to structures and serves to move the bone or structure

Question 28

What are muscles?

Answer 28

Muscles are pieces of soft tissue throughout the body.

Question 29

What function do muscles serve?

Answer 29

Muscles also move and support the internal organs. It allows for easier movement and for the body to perform tasks physical more efficnetly.

Question 30

Explain how breathing rate is linked to respiration rate

Answer 30

The respiratory rate is the rate at which breathing occurs. This is because while breathing is a mechanical process where the air volume changes in the chest cavity and respiration is a biochemical process where oxygen is introduced into the bloodstream and carbon dioxide is expelled from the body, when breathing these things happen at the same time meaning that they are same thing.