3/17/2016 Biological Organisation Starter Summary questions pg 21.

Biological organisation 1.Quick review of cells. 2.Review of specialization 3.Definitions of cell, tissue, organ and organ system 4.Know the tissue that make up the leaf (an organ)

Cells Are the simplest form of life Chemical elements organized into cells become living matter. All organisms are made-up of cells All the substances of an organism are the products of its cells

–Some things are only one cell (unicellular) –Some have many cells (multicellular) Life is Cellular

cell specialization- The characteristic of having separate roles for each type of cell in a multicellular organism the cells is specifically adapted for their function; Cell Specialization

Cells Continued Cells occur in many different shapes and sizes so they can perform many different functions.

What are the levels of organisation of living material? Biolelements Biomolecules Organelles Cells Tissues Organs Organ Systems organisms

17/03/2016 Cells, tissues, organs and systems Basically, all living things are made up of cells… A group of CELLS makes up a TISSUE A group of TISSUES makes up an ORGAN A group of ORGANS makes up a SYSTEM A group of SYSTEMS make up an ORGANISM

17/03/2016 Another example Here ’ s another example in humans: Muscle cells Muscle tissue Organ System Organism

Review of Organization 1.Cells – smallest unit of life Specialised-have a special job to do (i.e. cell from intestine) Undifferentiated or unspecialsed e.g. Stem cells/liver cell

Review of Organization 2. Tissues – a group cells of similar structure that work together to perform a special function carry out a special job (i.e. group of lining cells in intestine)

Tissue a group cells of similar structure that work together to perform a special function. Cartilage ( connective) Muscle Nervous Adipose (connective) Skin ( epithelial) Bone ( connective)

How many different tissues ?

Review of Organization 3. Organ – a group of tissues that work together to carry out a job (i.e. small intestine)

1.3b Heart and lung tissue Heart tissue fat blood nerve tissue muscle tissue

1.3b Heart and lung tissue Lung tissue epithelium tissue muscle tissue

Organ Many tissues working together form an organ

Review of Organization 4.Organ system – a group of organs that work together to do a certain job (i.e. digestive system)

An organ system is a group of organs that coordinate to perform related functions In plants the shoot is an organ system consisting of leaves and the stem lymphatic system respiratory system digestive system excretory system reproductive system muscular system skeletal system nervous system endocrine system circulatory system

Review of Organization 5. Organism – all organ systems working together (i.e. digestive, respiratory, circulatory, etc.)

Review of Organization

Task 1.What tissues make up the organ the heart ? 2.What organs make up the a.respiratory system b.Digestive system c.Excretory system d.Nervous system e.Reproductive system

Plants What organs can you think of that plants have ? Roots leaves stems reproductive organs: stamen (male) and pistil/carpel (female). plant usually have both male and female reproductive organs. s/1442/lecturenotes1.pdf

The organ the leaf

Make a 3D model or poster of a plant leaf C. Grade 4 different cells clearly labeled Cell, tissue, organ and organ system clearly explained B grade 5 different cells clearly labeled Cell, tissue, organ and organ system clearly explained Parts of the plant cell labeled on one cell A Grade Everything for B grade Clear explanations of how each type of cell is adapted for its job

Summary questions page 23 Exam questions page 24-25