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Science Sec 2 Chapter 10 Transport in living things - Coggle Diagram
Science Sec 2 Chapter 10 Transport in living things
Needed to carry substances to and from every cell in multicellular organisms
In flowering Plants
Xylem
Transports water and dissolved mineral salts from the roots to other parts of the plant
Water enter the roots by
osmosis
Mineral salts enter roots by
Diffusion
Phloem
Transports food from the leaves to other parts of the plant
How does the Plant transport system work?
The transport system in flowering plants is used to carry
water,minerals and nutrients to all cells of the body.
The transport system is made up of vessels in the
roots,stems and leaves
.
The xylem and phloem work together to ensure that all cells in the plant get the necessary sugar,water and minerals.
In animals
Human Circulatory system
Transports food and oxygen to all parts of the body
Heart
Pumps blood around the body
Blood vessels
Carry blood around the body
Consists of eateries,veins,capillaries
What is the role of the blood vessels?
Blood circulates through the circulatory system in tubes know as the
blood vessels
Two types of blood vessels are
arteries
and
veins
Arteries
carry blood
away
from the heart
Veins
carry blood
towards
the heart
Arteries branch into a network of smaller vessels know as
capillaries
Food
and
oxygen
pass from capillaries to the cells
Carbon dioxide
and other
waste substances
pass from the cells to the capillaries.
Blood
A liquid that carries substances around the body
Consists of plasma,red blood cells and other cells.
The circulatory system also works with other body systems
Food passes from the
digestive system
into the blood.Oxygen is taken in by the lungs (the main organs in the
respiratory system
)
The
circulatory system
carries food and oxygen to all cells of the body.
cells need a continuous supply of
oxygen
and
nutrients
.
They
waste products
that needs to be removed
A transport system is needed to transport substances
to
and
away
from the
cells
The main transport system in the human baby is called the
circulatory system.
The human transport system consists of three parts:
Heart
Blood
Blood vessels
If one part does not work well,the whole system will be affected
Blood consists of
Red blood cells
Transports oxygen to all cells
White blood cells
Fights against diseases.
Plasma
These are suspended in a pale yellow liquid called
Plasma
Transports important substances
(Nutrients,Hormones,Waste substances)
Platelets
prevents blood loss by forming clots
Blood is a mixture of
Plasma
and
Cellular elements
For
every drop
there is
55% Plasma
and
45% cellular elements
.
The human heart
The walls of the heart are made up of muscles.
The heart pumps blood around the body.
The human heart is a muscular pump
Has
4
compartments
Right atrium
Right ventricle
Left Atrium
Left ventricle
Septum
The septum in the heart separates the 2 ventricles completely
Functions:
To
prevent
mixing
of
deoxygnated
blood in the right side with the oxygenated blood in the left side of the heart.
How blood circulates around our body
Oxygenated
blood vs
Deoxygenated
Blood
Working with other systems in the body.
Movement of water
Movement of sugar
Diffusion of gases
Absorption of water and mineral salts
Structure of roots hair cell
How do substances Move into and out of cells.
Diffusion
Diffusion is the movement of
molecules
from a region of
higher
concentration
to a region of
lower concentration
.
Diffusion can
also
take place through a
membrane
that allows small molecules to pass through but not large molecules.
As they don't
not
allow all molecule to pass through,they are called
partially permeable membrane
Diffusion through visking tubing
Smaller
ink molecules are able to
move
through the pores of the membrane from the inside of the visking tubing where their concentration is
higher
to the water where their concentration is
lower
Larger
starch molecules are
not able
to do that as they are too big to pass through the pores
Osmosis
Osmosis is the overall movement of
water
molecules from a region of
higher water concentration
to a region of a
lower water concentration
through a partially
permeable membrane
Osmosis through a visking tubing
Smaller
water molecules can pas through the pores of the visking tubing
Water concentration in beaker is
higher
than in the Visking tubing
Water moves from the
beaker
to the
visking tubing
Why are diffusion and osmosis Important in living things
Human Body
Digested
food
diffuses through the walls of the
small
intestine
in the blood stream
In the lungs,
Oxygen
from air
diffuses
into the bloodstream.It also diffuses from the
blood
into the
cells
through the cell membrane.
Digested food
diffuses
into body cells.
Waste
products
diffuse
out of the body cells.
In Flowering Plants.
