In human being transport
system is composed of heart, arteries, veins,
and the blood. This system is termed as Circulatory System.
Heart is covered by a tough double membrane called pericardium.
Heart is composed of cardiac muscles which keep on working day
and night.
Heart consists of four chambers; two auricles and two
ventricles.
The fluid part of the blood
is called plasma.
Plasma has two types of cell. 1) Red blood cell 2) White blood cell
Red blood cell (RBC) contains a red pigment called hemoglobin.
Hemoglobin bind with oxygen and transport it to all the parts of the body and
ultimately to the cell. The presence of hemoglobin makes blood
appear red.
White blood cell (WBC) fight against germs that may
enter our body.
Arteries: Blood distributed to different body parts by the heart.
The largest artery is known as the aorta.
Veins: Blood collected and transported back to the heart.
The largest vein is called vena cava.
The Human being have average 72 heart beats per minutes.
Working
of Heart:
The right atrium receives the deoxygenated
blood through superior vena cave from the whole body.
From the right atrium the blood is forced to right
ventricle through tricuspid valve.
Right ventricle pumped the deoxygenated blood to the lung
through pulmonary arteries.
After oxygenation the blood comes back to left atrium through four
pulmonary veins.
After the left atrium oxygenated blood come into the left
ventricle.
On contraction the oxygenated blood from left ventricle is pushed
with full force in to aorta which distributes it to whole body.
Oxygenated blood is bright red in color.
Deoxygenated blood is bluish in color.
Transport in Plants
Plants to
possess a transport system which is comprised of roots, stem and leaves.
There is a network of conducting tissues which comprises of xylem and
phloem.
Algae have no need for transport because it’s all cell is
directly absorbed mineral salts and oxygen from water.
The first root which grows from the radical of an embryo
is called primary root.
The branches of primary roots are called secondary roots.
Those roots which grow from secondary roots are called tertiary
roots.
Plants need CO2 gas for photosynthesis.
Plants need oxygen gas for respiration.
Phloem worked of the transportation of food
in the all cell of plants.
Xylem worked of the transportation of water
in the all cell of plants.
Plants need oxygen to respire and CO2 to prepare food. For
this purpose the underside of leaves bear small openings called stomata.
Algae have no need for transport because it’s all cell is
directly absorbed mineral salts and oxygen from water.
The first root which grows from the radical of an embryo
is called primary root.
The branches of primary roots are called secondary roots.
Those roots which grow from secondary roots are called tertiary
roots.
Plants need CO2 gas for photosynthesis.
Plants need oxygen gas for respiration.
Phloem worked of the transportation of food
in the all cell of plants.
Xylem worked of the transportation of water
in the all cell of plants.
Plants need oxygen to respire and CO2 to prepare food. For
this purpose the underside of leaves bear small openings called stomata.
It is not the function of the human heart………
a) It keep beating throughout life
b) It collects the blob from veins
c) Exchange of gases takes place in it
d)It pumps the oxygenated blood to the body
If the valves of the heart of a person become defected how it can be diagnosed? a) By taking a X-Ray b) By open heart surgery c) By echocardiogram d) By simple ultrasound
