Respiration And Breathing

Question 1

Respiration

Answer 1

The process that releases energy from food

Question 2

The equation for respiration

Question 3

Aerobic respiration

Answer 3

Needs oxygen to release energy

Question 4

Anaerobic respiration

Answer 4

Does not need oxygen to release energy from food

Question 5

How does oxygen get to our cells

Answer 5

Oxygen is carried by the haemoglobin in red blood cells to all other cells of the body

Question 6

Nose

Answer 6

We are supposed to
inhale through our nose.
Because
Hairs and mucus trap
dirt particles and
bacteria in the nose
Air is warmed and
moistened as it passes
through the nose.
Warm and moist air
helps oxygen to pass
from the lungs into
the bloodstream more
easily.

Question 7

Trachea

Answer 7

The trachea, or windpipe, carries air to and from the lungs. It is made of C-shaped rings of rigid
cartilage (to prevent it from collapsing),

Question 8

Bronchus and bronchioles

Answer 8

We have two bronchi. Each bronchus carries air between the trachea and a lung. The two
bronchi subdivide many times to form tiny tubes called bronchioles. Bronchioles carry air to and
from the air-sacs, or alveoli.

Question 9

Alveolus

Answer 9

Each lung contains millions of tiny air-sacs called alveoli.
The function of each alveolus is gas
The gases pass in each direction by a process called diffusion.
As an adaptation for diffusion each alveolus has a very thin
lining, is moist and is surrounded by many tiny blood vessels
called capillaries.

Question 10

Diaphragm

Answer 10

The diaphragm is a sheet of muscle that forms the base of the chest. Along with the ribs and
intercostal muscles (located between the ribs) the diaphragm causes air to move into or out
of the lungs.