CHARACTERISTICS OF LIVING THINGS

By: Aileen A. Otamias

QUESTIONS:1. How do you know if something has life?

2. Why do you consider yourself alive?

3. Do you perform similar processes performed by the plants? By microorganisms? By fungi and other living organisms?

4. Rocks grow, machines excrete wastes, weighing scales respond to weights, robots move, do they perform life processes?

LECTURE BINGO ACTIVITY Whenever any life

process is mentioned in the lecture, put a dot on the box containing that life process. Boxes with “free” labels are exempt

from dots.

LECTURE BINGO ACTIVITYThe group which completes

a series of three dots in a

vertical, horizontal or diagonal

orientation shall shout “BINGO” and wins the

game.

LECTURE BINGO ACTIVITY5. The winning group

will receive an incentive.

6. The bingo game will continue until the lecture is finished.

 

LIFE PROCESSESCHARACTERISTICS OF

LIVING THINGS

1. CELLULAR ORGANIZATION

All living things are made up of cells.

* Some organisms are unicellular and consist of only a single cell.

* Other organisms are multicellular and are composed of many cells

2. GROWTH

Living things have the capacity to grow

ACCRETION – is growth by external addition

INTUSSUSCEPTION – is growth by addition of substances into existing cells.

3. DEVELOPMENT

It includes stages that an individual organism goes through from the moment it begins life until it reaches maturity

4. METABOLISM

It refers to the chemical activities that are needed for life.

INGESTION

DIGESTION

RESPIRATION

EXCRETION

CATABOLISM- break down of complex substance into simpler substance

ANABOLISM- formation of complex substances from simpler substances

5. REPRODUCTION

It is the process of producing new organisms of the same kind.

6. SENSITIVITY

Living things respond to stimuli.

STIMULI – are external factors that may affect living things.

Examples:

light, temperature, pressure, water, chemical substances, and source of food.

7. ADAPTATION

It is the structure or behavior by which species gradually or rapidly becomes better suited to survive in a given environment.

8. NUTRITION

Organisms must be able to get and use energy in order to survive. Energy is needed to carry out all cellular processes. For example, organisms use energy from food to grow, develop, and reproduce.

9. MOVEMENT

Plants do not move the way animals do. They can only move by bending or by having their roots extend to a wider area as they grow. Animals, on the other hand can crawl, fly, jump, hop or swim.

10. DEFINITE FORM AND SIZE RANGE

You can easily describe any living thing, be it a plant or animal because of its characteristic form and size.

QUESTIONS:

RECAP ACTIVITY:

RECAP ACTIVITY:GUIDE QUESTIONS:1. What is the major topic in the lesson?

2. What are some of the key points in the lesson?

3. Some of the life processes in organisms seem to have “parallel processes” in some non-living things (ex. Growth of rocks, excretion of wastes by some machines, response of weighing scale to weight, movement of helicopter) Compare the processes. What are the differences between the processes in non-living with those in living things?

ASSESSMENTCHARADES GAME

Act and Guess Activity

APPLICATIONWill a computer be able to replace the roles of human being in the society of today? Why do you think so?

AGREEMENT:

Write an essay, a reflection on what life or living means to you.

THANK YOU!

AND

PEACE BE WITH YOU…