1. The Characteristics
of
Living Organism

2. For further understanding about
living organisms characteristics and
their differences with non-living
things, let’s do observation 

3. Observation Sheet
1. Observe the characteristics of some
things (can be plants, animals, or
things) near your school
2. Fill in the table below
put a positive sign (+) if the object
has the characteristics, and negative
sign (-) if it doesn’t have the
characteristics.

4. object Characteristics
Moves Eats Breathes Grows Reprodu Excretes
ces
Cat
Car
Man
Ants
Bicycle
Coconut
tree
Ball
Stone
Motorcyc
le
Hibiscus
tree

5. a. Movement
 animals and humans movement can
be clearly observed
 animals move from one place to
another place because they have
special organs
 ex. A bird has wings and feet, fish
have fins to swim

6. • The movement of plants is very difficult to
observe, because its movement is very slow
and doesn’t cause any displacement.
• Plants move by growing
• Ex. The root is growing and extending into the
ground, stem tip grow toward the sunlight, a
flower bud opens when it blossoms.

7. b. Eat
• All living things need food
• But plants do not eat like animals, plants produce
organic matters as their food through
photosysnthesis, it’s called autotrophic
6CO2 + 6H2O C6H12O6 + 6O2 + Energy
Carbon Water chlorophyl Glucose Oxygen
dioxide
• Green plants need certain substances, such as
carbon dioxide from the air and water are taken
from the soil.

8. • That process will produce glucose, oxygen, and
energy.
• Animals need another organisms to be eaten, it
is called heterotrophic.
• Base on their kind of food, animal divided into
3;
1. herbivores : feed on plants only
2. carnivores : feed on animals only
3. omnivores : feed on both plants and
animals

9. c. Respiration / Breath
• All living things need oxygen to breathe.
• They inhale oxygen and exhale carbon dioxide
and water vapor.
• The inhaled oxygen is used to help the burning
process of nutrient, this process is called
oxidation.
• Oxidation produce energy which is used to
perform daily activities.

10. • The process of inhaling oxygen and exhaling
carbon dioxide and water vapor is called
respiration.
C6H12O6 + 6O2 6CO2 + 6H2O
• The kind of respiration organs are ;
1. Mamalians : lungs
2. Birds : lungs and air sacs
3. Fish : gills
4. Plants : stomata and lenticels

11. d. Irritability
• Living things are sensitive to changes that occur in
their surroundings.
• When we are on a mountain range, we feel cold.
This cold sensation is received by the sensory
receptors in our skin.
• A sensory reseptor is an instrument within the
body which is sensitive to stimulus
• Animals and humans have sensory receptors,
therefore they can see, hear, smell, taste, feel,
touch.

12. • Eyes are sensitive to light so that we can see,
• ears are sensitive to the vibration so that we
can hear,
• nose is sensitive to odor so that we can smell,
• tongue is sensitive to taste so that we can taste
food,
• skin is sensitive to hot or cold and to
pressure, touch and wounds

13. • Plants do not have sensory receptors to
receive stimuli, but they are sensitive to the
stimuli such as light, water, gravity, and
touch.
• Ex. Touch-me-not plant (Mimosa pudica)will
close its leaves when it is touched, shoots
will grow and bend toward the direction of
the light.

14. e. Grow and developed
• If we plant a seed, it will germinate. The sprout
will grow bigger and thicker.
• Chicken growth starts from a chick that hatched
from an egg, the chick then grow and become an
adult, hen or rooster.
• Human and animal growth will stop when they
reach a certain age.
• However, in plants, we will find that the forming
of buds, leaves and flowers, happen continuously
all their lives.

15. • Grow occurs because cells divide causing
them to be more numerous which causes
organisms to get bigger.
• Developed occurs when cells take on
specific jobs within the organism (like
heart cell or brain cell)

16. f. Excretion
• The process of removing metabolic waste in living
organisms is called excretion.
• Excretion organs in humans as follow ;
1. Lungs : CO2 and H2O vapor
2. Liver : excrete bile
3. Kidneys : urine
4. Skin : Sweat
• Excretion in seed plants occurs through the stomata
in the leaves and lenticels on the stems.

17. g. Reproduction
• Every living organism will produce its
own offspring, called reproduction.
• Every species has different methods
to reproduce, but the two main
methods are by asexual (vegetative)
and sexual (generative) reproduction.