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In This Lesson
Plants
Plants can make their own energy in the form of glucose through photosynthesis process

Glucose
It is the plant sugar that is produced during photosynthesis and provides energy for the plant to survive and grow.

Humans
▌Humans must eat food throughout the day to get energy

▌Air enters the human body through the nose and mouth then travels to the lungs, where oxygen is absorbed into circulating blood.


Human circulatory system
▌The human circulatory system consists of the heart and blood vessels (tubes).

Circulatory system
It is the system that transports blood and other fluids throughout the body.

Arteries
carry blood that is rich with oxygen and nutrients (glucose) from the heart to the body cells, so that the body can grow.

Veins
return the blood that carries carbon dioxide and is low in nutrients and oxygen back to the heart, then to the lungs where the blood carries oxygen again.

Comparing the human body to plants
▌Like the human body, a plant needs energy to grow.
▌In plants; water, nutrients and the plant food formed during photosynthesis.
▌Similar to the way arteries and veins pump blood in a specific direction to and
from the heart, the transport system in plants have one-way vessels that move
important substances between the parts of the plant.


Transport system of plants
▌Water and nutrients taken up by the roots through xylem are transported to the leaves to make the plant food.
▌When the water arrives to the leaves, they begin to produce glucose sugar.
▌The phloem carries the glucose sugar downward into all other parts of the plant to grow.

Plant Food
▌Plants have some structures that take in water and nutrients from the soil and move them to other parts of the plant.
▌Plants also have other structures that absorb sunlight and take in carbon dioxide from air.
▌In plant's leaves, sunlight helps water combine with carbon dioxide to make glucose sugar which is used by plant cells for food.
▌During photosynthesis process, light energy of the Sun is transformed into chemical energy that is found in glucose.

Glucose for energy
▌Phloem moves glucose from the leaves to the other parts of the plants.

▌During photosynthesis process, the plant also produces oxygen and water which are released into the air.

▌Other living organisms, such as animals and humans, depend on the oxygen that
plants release during photosynthesis process for their respiration.

بالتوفيق
مستر احمد الباشا