Chapter 1 - Classifying Organisms

What are the characterstics of an organism?

Movement

Respiration

Sensitivity

Growth

Reproduction

Excretion

Nuitrition

Explain movement

The ability of an organism to change position or place

What is respiration

The breakdown of glucose in the body in order to release energy for cells to use.

What is sensitivity

The ability of an organism to detect stimuli in its internal and external enviroments, and being able to respond to it.

What is growth

The increase in an organism’s dry mass due to the growth of cells or adding new cells into their body.

What is reproduction?

The ability of organisms to reproduce other organisms of the same species as themselves.

What is excretion?

When an organism’s body removes toxic waste products that are a result of metabolic processes.

What is nuitrition?

When organisms take in and absorb materials from their enviroment or food to use for growth and energy.

What is the order of classification?

Kindgdom, phylum, class, order, family, genus, species

Characteristics of the fungi kingdom

1. Usually multicellular (some like yeast can be unicellular)

2. Have nuclei and cell walls made from chitin.

3. Do not contain chloroplasts

4. Feed sacrophytically (off waste organic matter or dead organisms)

Characteristics of animal kingdom:

1. Cells do not contail cell walls nor chloroplasts (can’t photosynthesise)

2. Cells contain nucleus and mitochrondia

3. Usually multicellular

4. Organisms feed on organic substances made by other organisms

Characteristics of plant kingdom:

1. Cells contain nucleus and mitochrondria

2. Cells contain cellulose cell walls and chloroplasts

3. Usually multicellular

4. Produce their own food through the process of photosynthesis.

Characteristics of prokaryote kingdom:

1. Usually unicellular

2. Their cells do NOT contain a nucleus or mitochrondrion

3. Their cells contain a floating ring of DNA

4. They also contain plasmids (smaller floating rings of DNA)

What are the characteristics of the protoctist kingdom?

1. Can be multicellular or unicellular

2. All contain a nucleus but some may or may not have a cell wall and chloroplasts

3. Some feed through photosynthesis and others from organic substances made by other organisms