Leaving Cert Biology 2 4 Cell Diversity Bone

Leaving Cert Biology 2. 4 Cell Diversity Bone cell Skin cell Cell Diversity Hair cell

Leaving Cert Biology 2. 4 Cell Diversity From cell to organism All living things are made of cells. animal plant

Leaving Cert Biology 2. 4 Cell Diversity SPECIALISED CELLS CAN YOU GUESS WHAT EACH OF THE FOLLOWING CELLS ARE CALLED?

Leaving Cert Biology 2. 4 Cell Diversity 1. Hint : it carries oxygen

Leaving Cert Biology 2. 4 Cell Diversity 2. Hint : it is found in plants under the ground

Leaving Cert Biology 2. 4 Cell Diversity 3. Hint : This cell stops us being sick

Leaving Cert Biology 2. 4 Cell Diversity 4. Hint : This cell is needed to make new humans.

Leaving Cert Biology 2. 4 Cell Diversity 5. Hint : This cell grows lots in 9 months.

Leaving Cert Biology 2. 4 Cell Diversity 6. HINT: Carries messages around the body.

Leaving Cert Biology 2. 4 Cell Diversity 7. HINT: carries water around plants.

Leaving Cert Biology 2. 4 Cell Diversity Whose cell is it anyway?

Leaving Cert Biology 2. 4 Cell Diversity Tissues are groups of cells with similar structures and functions cells tissue

Leaving Cert Biology 2. 4 Cell Diversity Examples of tissue Animal tissues Plant tissues muscle mesophyll bone phloem liver xylem skin lung Can you think of any more types of tissue?

Leaving Cert Biology 2. 4 Cell Diversity Examples of animal tissues • Nervous tissue Made of nerve cells that carry electrical impulses signals around the body. Epithelial tissue Made of cells that cover inner and outer surfaces and protect them.

Leaving Cert Biology 2. 4 Cell Diversity Examples of plant tissues • Dermal tissue Made of cells that protect the surfaces of the plant. • Vascular Tissue • Made of cells that transport water, minerals and sugar through the plant.

Leaving Cert Biology 2. 4 Cell Diversity 2. 4. 1 Tissue Cultures • Def Tissue culture is the growth of tissues outside an organism using a sterile nutrient fluid Tissue cultures can be used to make plants for horticultural use!

Leaving Cert Biology 2. 4 Cell Diversity 2. 4. 1 Tissue Cultures • Tissue cultures can also be used to grow replacement cells to repair damaged issues in humans! Muscle tissue Pancreas tissue Nervous tissue

Leaving Cert Biology 2. 4 Cell Diversity • Discuss some advantages and some disadvantages of this type of tissue culturing. .

Leaving Cert Biology 2. 4 Cell Diversity What did you learn today? • • • What is a tissue? Name 2 examples of animal tissues Name 2 examples of plant tissue What is a tissue culture? Give some uses of tissue cultures

Leaving Cert Biology 2. 4 Cell Diversity Organs Groups of tissues work together to form organs. cell tissue organ

Leaving Cert Biology 2. 4 Cell Diversity 2. 4. 2 Organs • Def An organ is a group of tissues that work together to carry out a particular function. Example of an animal organ : The heart’s function is to pump blood around the body

Leaving Cert Biology 2. 4 Cell Diversity 2. 4. 2 Organs Example of a plant organ : The leaf • The function of the leaf organ is photosynthesis

Leaving Cert Biology 2. 4 Cell Diversity The leaf – a plant organ

Leaving Cert Biology 2. 4 Cell Diversity Which organ?

Leaving Cert Biology 2. 4 Cell Diversity Which organ?

Leaving Cert Biology 2. 4 Cell Diversity Which organ?

Leaving Cert Biology 2. 4 Cell Diversity How is the body organized? Groups of organs form systems.

Leaving Cert Biology 2. 4 Cell Diversity 2. 4. 3 Organ systems • Def an organ system is a group of organs working together to carry out a particular function Example of an animal organ system: The circulatory system • The circulatory system functions to transport materials around the body and to fight infection.

Leaving Cert Biology 2. 4 Cell Diversity Second example of an animal organ system : The digestive system • The digestive system functions to take in food, break it down and transport it into the circulatory system.

Leaving Cert Biology 2. 4 Cell Diversity Matching systems and organs

Leaving Cert Biology 2. 4 Cell Diversity Why do organisms have to be so organized? Organization of the body allows complex organisms to carry out many different jobs at the same time. body life processes grow reproduce move respond to things respire digest food excrete Being organized means that the body does not waste energy, so it is more efficient.

Leaving Cert Biology 2. 4 Cell Diversity Anagrams

Leaving Cert Biology 2. 4 Cell Diversity Cells summary

Leaving Cert Biology 2. 4 Cell Diversity Multiple-choice quiz