Classification Lesson 1 Bellwork How are organisms classified

Classification Lesson 1

Bellwork

How are organisms classified? By the end of today. . . We will all be able to explain that organisms can be classified according to their characteristics Most of us should be able to describe the main characteristics of the five kingdom Some of us will be able to describe the problems of classifying organisms into five kingdoms How. . . Presenting information and drawing conclusions using scientific, technical and mathematical language

The five kingdoms of organisms �The process of sorting organisms into groups according to what they look like is called classification. �Organisms may be classified into five kingdoms, according to some very basic characteristics.

Activity 1: Can you link the keywords to their definitions �Unicellular These organisms eat and digest organisms externally �Multicellular These organisms make their own food via photosynthesis �Autotroph Made of a single cell �Heterotroph These organisms eat and digest other organisms �saprophytic Made of many cells

The main characteristics of organisms in the five kingdoms Kingdom Main characteristics Animalia Multicellular; Heterotrophic feeders so no cholorophyll; no cell walls; complex cell structure with nucleus Plantae Multicellular, autotrophic feeders using chlorophyll; cell walls made of cellulose; complex cell structure with nucleus Fungi Multicellular; cell walls not made of cellulose; saprophytic feeders so no chlorophyll; complex cell structure with nucleus Protoctista Mostly unicellular (a few are multicellular); complex cell structure with nucleus prokaryotae Unicellular; simple cell structure with no nucleus

Activity 2: Classifying organisms Worksheet B 1. 1 a �For each organism shown on the worksheet can you state which kingdom you think it is in and give your reasons. �Choose from these kingdoms: Animalia, Plantae, Fungi, Prokaryotae, Protoctista.

Activity 3: The problem with Euglena Worksheet B 1. 1 b �For many years, scientists argued about whether it was an animal, a plant or neither. �You need to construct an argument to say whether you think it should be classified as an animal, as a plant or as neither.

Plenary �A dictionary publisher of a children’s dictionary needs definitions of the words ‘plant’ and ‘animal’. in your exercise books can you write definitions for the dictionary?

How are organisms classified? By the end of today. . . We will all be all able to explain that organisms can be classified according to their characteristics Most of us should be able to describe the main characteristics of the five kingdom Some of us will be able to describe the problems of classifying organisms into five kingdoms How. . . Presenting information and drawing conclusions using scientific, technical and mathematical language