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Cell to systems : Revision
Revision for end of topic assessment : Science
5
Science
7th Grade
09/24/2013

Additional Science Flashcards

 


 

Cards

Term

Introduction

Animals and plants are made of cells. Cells form the basic "building blocks" for living things. Some cells have specialised functions.

 

Tissues are made from cells of a similar type. Organs are made from tissues, and systems are made from several organs working together.

Definition
Term
Oninon Cells:                             Cheek Cells:  

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Definition

Cells

Cells are very small. They are the basic building blocks of all animals and plants. These photographs show cells seen through a microscope.

 

Term

Animal cells and plant cells both contain:

Cell membrane, cytoplasm, nucleus

Plant cells also contain these parts, not found in animal cells:

Chloroplasts, vacuole, cell wall

The table summarises the functions of these parts. 

Animal cells usually have an irregular shape, and plant cells usually have a regular shape.

 


 

Cells are made up of different parts. It is easier to explain what these parts are by using diagrams like the ones below.

 


 

Definition
Term

 

Humans are multi-cellular animals. That means we are made of lots of cells, not just one cell. The cells in many multi-cellular animals and plants are specialised, so that they can share out the processes of life. They work together like a team to support the different processes in an organism.

Speacialised Cells

You should be able to work out special features of a cell from a drawing, if you are told what the cell can do. The tables below show examples of some specialised animal and plant cells, with their functions and special features.

 
 
 
Definition
Term

Animal cells and plant cells can form tissues, like muscle tissue. A living tissue is made from a group of cells with a similar structure and function, which all work together to do a particular job.

 An organ system is made from a group of different organs, which all work together to do a particular job. 

circulatory system

respiratory system

digestive system

reproductive system

leaf canopy

 
Definition
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