name one organism list three characteristics that make this “thing” an organism. _________ is an...

NAME ONE ORGANISMList three

characteristics that make this “thing”

anorganism.

_________ is an organism.

__________ is an organismbecause1.___________________2.___________________3.___________________

Hint: An organism is any living thing.

Organism • Any living thing

• Examples:–Shark -Tree-Bacteria–Human -Bird

Characteristics of Organisms

1. Living things are organized

• Organisms are composed of (made of) cells

• Some organisms are composed of many cells and some are composed of one cell

• Multi-cellular and Uni-cellular

Examples ofUnicellular

organisms

Examples of multi-cellular organisms

Bacteria, Paramecium

Humans, trees, dogs

How are multi-cellular organisms organized?

Ex. Human

Ex. Digestive system

Ex. Liver

Ex. Liver tissue

Ex. Liver cells

2. Living Things Respond

Living things react to stimuli inside them or in their surrounding environment.

Stimuli or stimulus (singular)

Anything that causes a change in the organismEx. Car horn or a screaming baby

Stimuli can cause a response

A reaction to the stimuli is a response

Examples

Stimuli~Phone rings

Response ~Walk over to phone

~Touch hot water~Rapidly move your hand

3. Organisms use energy

Organism use energy for life activities.

The energy that is used by organisms comes directly or indirectly from the sun.

4. Organisms grow and develop

Growth is due to the increase in number of cells in any multi-cellular organism.

Growth is due to increase in size of the cell in any uni-cellular organism

5. Organisms can reproduce

Organisms have the ability to make more of their own kind.

Without reproduction, living things would not exist to replace those individuals that die, causing extinction.

Topic: LifeAim: How do organisms survive?

Review:the scientific

methodHandout

DO NOW:

Experiment

Groups

Experimental group

Controlgroup

Independent Variable Control

Dependent Variable: End Result / What you expect to happen

Something you measure Key works: amount

What each Group receives

Life Processes

aka“life functions”

aka“life activities” Biological

activities that must be performed by the organism to survive

Life process PRETEST

http://www.woodlands-junior.kent.sch.uk/revision/Science/life.html

1. Nutrition

Process in which organisms take in materials from the environment to be used by the body

2 types:

1. Heterotrophic nutrition

organism must obtain their food from their environment because they cannot make their own

Steps of Heterotrophic

nutrition

A. IngestionProcess of taking

in food

B. DigestionProcess of

breaking down food

C. AbsorptionProcess of

nutrients being diffused into

the bloodstream

D. EgestionProcess of

removing undigested food called

feces

2. Autotrophic nutrition organisms have the ability to make food from raw materials from their environment

By the process of photosynthesis

2. Respiration Release of ENERGY

found in nutrients needed to perform various activities

Glucose +

Energy

Oxygen

Carbon Dioxide

Water ++

TWO TYPES of respiration

A.Aerobic Respiration

Requires oxygenB. Anaerobic Respiration

Does NOT require oxygen

3.Transport

Circulation, distribution, and absorption of materials throughout the organism or through a cell

Carried out by the Circulatory system

Carried out by your cells

Other living things have circulatory systems like we

do…

The chloroplasts in plants cells must be able to move around inside the cell =

TRANSPORT

Topic: LifeAim: How are life functions linked to homeostasis?

DO NOW:

Explain how a life function helps an organisms survive.

___________ helps an organism to survive because _____________________________________________________.

4.Locomotion

Movement of the entire body from one place to another or movement of body parts

Animals move their whole bodies to get from one place to another

Plants turn towards the light and their roots grow down into

the soil

5. Excretion

Removal of metabolic/cellular wastes

Cellular wastes: wastes made by your cells

CO2, water, salt, nitrogen wastes called urea

Sweat = water, salt, urea (nitrogen waste)

6. Growth When there is an increase in cell number

Cancer

when the cells divide uncontrollably

Topic: LifeAim: How are life functions linked to homeostasis? PART II

DO NOW:

List 3 life functions and describe how they help the organisms.

7.Reproduction

Production of new individuals

As an individual, a living thing doesn’t have to reproduce BUT as a species it must in order to keep it’s kind alive

Two types1. Asexual reproduction requires one parent cell to divided (reproduce)

2. Sexual reproduction requires 2 parent cells to combine genetic material to form a new organism

8. Synthesis

When small molecules come together to form large molecules

9. Regulation

Control & Coordination of all life processes in order to maintain homeostasis

Metabolism Rate/pace at which the organism performs the life processes in the body

Every single thing carries out metabolic activities

Maintaining a stable, internal environment

The body's ability to regulate its internal environment to maintain stability in response to changes in the outside environment.

Medial Summary

Life process POSTTEST

http://www.woodlands-junior.kent.sch.uk/revision/Science/life.html