The document discusses the process of digestion in the human body and the functions of different plant parts. Regarding digestion, it explains that food must be broken down into simpler substances before the body can use it. This occurs through chewing, stomach acids, and enzymes in the small intestine. Plant structures like leaves, roots, and stems also have specific functions, such as leaves producing food through photosynthesis and roots absorbing water and minerals from the soil.

1. BY:Alekhya
Class:Humility 3
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2.  Your body needs food to grow and grow.
 The food you eat cannot be used as it is.
 The food has to be chewed or chopped
up,and broken down into simple substances
before it can be used.
 This process is called Digestion.

3.  http://youtu.be/_EtTWXQ5BiA

4.  Digestion is a process where by
food is broken down into simpler
substances and absorbs by
the body.
gullet
anus

5.  The teeth in your mouth chew and grind food
into simpler substances.
 The saliva in your mouth helps to soften the
food so that it can be swallowed easily by
the gullet.
 Saliva contains a small amount of digestive
juices which digests the food alittle.

6.  In the stomach, the food is digested further
and mixed with other digestive juices.
 The stomach contains more digestive juice
than the amount of digestive juices in the
mouth.
 The food now looks like ‘thick soup’.

7.  In the small intestine, more digestive juices
are combined with the food to make the
‘thick soup’ digest into even more simper
substances.
 Digestion of the food is completed here in
the small intestine.
 As the food substances are very small now,
they can pass through the wall of the
intestine.
 The blood then carries the digested food to
different parts of the body through the
body’s circulatory system.

8.  Undigested food that cannot be digested is
brought to the big intestine.
 Here, water from the undigested food is
absorbed for various reasons for the body to
use as.
 After the undigested food has the water
removed, they are then passed on to the
anus.

9.  The anus is a part of the body that is used to
remove the waste that is not needed from
the body.
 The undigested food in the anus is stored
until it is ready to be removed from the
body. 

10.  The circulatory system contains the
heart, blood vessels and the blood.
 Digested food, waste from the body,
oxygen and other gases are transported
around the body through the blood in the
blood vessels.

11.  A plant system contains the leaves, the stem,
the roots, the flowers and the fruits.
 A plant is a system as it carries out various
activities on its own.

12.  The leaves of the every plant is different but
they all carry out the same activity which is
to make food for the plant.
 The process is called photosynthesis where
the leaves make food in the presence of
sunlight, water and carbon dioxide.

13.  The roots of the plant are also different but
they also carry out the same activity.
 All roots help to absorb water, mineral salts
and nutrients form the soil.

14.  The stem supports a plant.
 It hold the leaves up so that they can get sunlight
to make food.
 In some plants the stem store food.
 Stems connect the leaves and the roots of a plant
together.
 Water and mineral salt taken in by the roots tarvel
up the stem to the other parts of the plant.

25.  http://youtu.be/VrS7SCdd7-U
 http://youtu.be/qhajGKS5thQ
 http://youtu.be/HBIYwiktPsQ

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43. http://www.slideshare.net/

45.  Your body needs food to grow and grow.
 The food you eat cannot be used as it is.
 The food has to be chewed or chopped
up,and broken down into simple substances
before it can be used.
 This process is called

46.  Your body needs food to grow and grow.
 The food you eat cannot be used as it is.
 The food has to be chewed or chopped
up,and broken down into simple substances
before it can be used.
 This process is called

47.  The roots of the plant are also different but
they also carry out the same activity.
 All roots help to absorb water,
form the soil.

48.  The roots of the plant are also different but
they also carry out the same activity.
 All roots help to absorb water, mineral salts
and nutrients form the soil.