This document discusses the key characteristics of life. It identifies seven characteristics shared by all living things: 1) cellular organization, 2) reproduction, 3) metabolism, 4) homeostasis, 5) heredity, 6) responsiveness, and 7) growth and development. Each characteristic is then further explained, with cellular organization distinguishing unicellular from multicellular organisms, and reproduction defined as asexual or sexual. The document also provides examples to illustrate metabolism, homeostasis, heredity, and responsiveness.

2. L I F E

4. " What
make
things
alive?"

5. In this lesson, you are
able to identify the
different characteristics
of life and explain how
unifying themes about
life.

7. What is the difference
between a living thing
and a nonliving thing?

8. All living things shaare some basic
properties.Cellular Organization
Reproduction
Metabolism (Obtain and Use Energy)
Homeostasis
Heredity
Responsiveness

9. 1. Cellular
Organization

10. Unicellular Organisms
Entire organism is made up of one single cell
Bacteria and protists
Smallest unit capable of all life
functions

11. Multicellular
OrganismsThe organism is made up of many
cells
Cells have specialized functions
within the organism

12. 2.Reproduction

13. Reproduction is the process of producing new
organisms of the same type
Asexual Reproduction
A single parent organism reproducing by itself

14. Sexual Reproduction
Two different parent organisms contribute
genetic information
Involves the combination of male and female sex
cells

15. 3. Metabolism
(Obtain and Use Energy)

16. Living organisms need energy to
grow, develop, repair damage,
and reproduce

17. Anabolis
m
The process of building up complex substances
from simpler substances
Building up cells and cellular components
Photosynthesis

18. Catabolism
The process of breaking down complex
substances into simpler substances to release
energy
Digestion
Cellular Respiration

19. Metabolism
The total of all chemical reactions in
an organism
Anabolism + Catabolism = Metabolism

20. 4. Homeostasis

21. A stable state of conditions in the body
that are necessary for life
Body
temperature
Blood volume
pH balance &
Water balance

22. .5 Heredity

23. Genes carry hereditary information Genes are composed of DNA
Heredity is the reason children resemble their parents
Mutations change DNA code and can be passed from generation to
generation

24. .6 Responsiveness

25. Organisms react to
stimuli:
Light
Temperature
Odor
Sound
Gravity
An example is a plant’s
leaves and stems
growing toward light

26. 7.Growth and
Development

27. Growth means to get bigger in
size

28. Development involves a change in the
physical form or physiological make-up
of an organism

29. 8. Adaptation

30. Adaptatio
n
A process that enables
organisms to become better
suited to their environment
Species obtain adaptations
through evolution over great
periods of time

31. An Example of
Adaptation
Desert plants have succulent waxy leaves and
stems to store water and reduce water loss

32. QUIZ
TIME!!!!! Identify the
different
characteristic
of life

33. CHARACTERISTICS OF LIFE
1. Cellular Organization (made up of cells)
2. Reproduction
3. Metabolism (Obtain and Use Energy)
4. Homeostasis ( body temperature, ph & water
balance,)
5. Heredity ( hereditary traits)
6. Responsiveness ( respose to environment)
7. Growth and Development

34. 1.
2.

35. 1.
2.

36. 1.
2.

37. 1.
2.

38. 1.
2.

39. 1.
2.

40. 1.
2.

41. 1.
2.

42. THE END 