1. Cell Organisation (Animal and Digestion)
Noadswood Science, 2016

2. Cell Organisation (Animal and Digestion)
Wednesday, April 18, 2018
Cell Organisation (Animal and Digestion)
To describe how cells, tissues, organs and systems function (including specifically the digestive system)

3. Precise Learning
Students should be able to, when provided with appropriate information, explain how the structure of different types of cell relate to their function in a tissue, an organ or organ system, or the whole organism.
Cells are the basic building blocks of all living organisms.
A tissue is a group of cells with a similar structure and function.
Organs are aggregations of tissues performing specific functions.
Organs are organised into organ systems, which work together to form organisms.
The digestive system is an example of an organ system in which several organs work together to digest and absorb food.

4. Trillions
Multicellular organisms such as humans can have trillions of cells – these cells need to work together which itself needs organization…
19x

5. Organisation How are the cells organised?
Cell > Tissue > Organ
How are the cells organised?
Cells are the basic building blocks of all living organisms (specialised cells which have differentiated can carry out particular functions)
Specialised cells are organised into tissues (a group of cells with a similar structure and function)
Tissues form organs (collections of tissues performing specific functions) and organs form organ systems

6. Tissue types
Tissue is a group of similar cells that work together to carry out a particular function and include
Muscular tissue – contracts to move what it is attached to

7. Tissue types
Tissue is a group of similar cells that work together to carry out a particular function and include
Glandular tissue – secretes substances such as enzymes and hormones

8. Tissue types
Tissue is a group of similar cells that work together to carry out a particular function and include
Epithelial tissue – covers parts of the body such as the gut

9. Organs
An organ is a group of different tissues that work together to perform a certain function, e.g. the heart, brains, lungs, stomach etc…

10. ORGAN SYSTEMS
An organ system is a group of organs working together to perform a particular function
The digestive system is an example of this – recap your knowledge of the digestive system with the mini Sadie’s Poo experiment…

11. ORGAN SYSTEMS
The digestive system is made up of the following organs: -
Glands (e.g. the pancreas and salivary glands) which produce digestive juices
Stomach where food is digested
Liver which produces bile
Small intestine where food is digested and soluble food molecules are absorbed
Large intestine where water is absorbed from undigested food, leaving faeces

12. Size and Scale
Individual cells to organ systems…

13. Practice questions
What can be thought of as the basic building blocks that make up all living organisms?
What is a tissue and what is an organ?
What term describes a group of organs which work together to perform a particular function?

14. Answers
What can be thought of as the basic building blocks that make up all living organisms – cells
What is a tissue and what is an organ – tissue: a group of similar cells that work together to carry out a particular function; organ: a group of different tissues that work together to perform a certain function
What term describes a group of organs which work together to perform a particular function – organ system

15. Practice questions – application
Blood is made up of specialised red blood cells and several different types of white blood cells. Is blood an example of a cell, tissue, organ or organ system?

16. answers
Blood is made up of specialised red blood cells and several different types of white blood cells. Is blood an example of a cell, tissue, organ or organ system – a tissue as it consists of similar cells that work together to form a particular function

17. Practice questions – application
The fallopian tubes and uterus are part of the female reproductive system. A fallopian tube contains muscular and epithelial tissue which work together to move a fertilized egg along the fallopian tube to the uterus (an organ).
Suggest why a fallopian tube has muscular tissue
Is a fallopian tube a cell, tissue, organ or organ system?
Rewrite the following list of structures in order of size (starting with the smallest)
uterus > reproductive system > egg cell > muscular tissue

18. egg cell > muscular tissue > uterus > reproductive system
answers
The fallopian tubes and uterus are part of the female reproductive system. A fallopian tube contains muscular and epithelial tissue which work together to move a fertilized egg along the fallopian tube to the uterus (an organ).
Suggest why a fallopian tube has muscular tissue – it contracts to move the fertilized egg along the fallopian tube to the uterus
Is a fallopian tube a cell, tissue, organ or organ system – an organ because it consists of a group of different tissues working together to form a particular function
Rewrite the following list of structures in order of size (starting with the smallest):
egg cell > muscular tissue > uterus > reproductive system