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What do all living things have in common?
Living things have several characteristics that distinguish them from non-living things.
1. Living things grow in size, reproduce and are able to repair themselves.
Produce offspring
Repair worn or injured parts
Grow in size
2. Living things require energy.
3 Living things respond to changes in their environment.
Animals try to escape from predators.
Plants grow in the direction of moist soil…and the sun.
Responses do not always cause motion.
Some responses occur within the living thing and are not directly observable.e.g. an animal’s metabolism may slow down when an animal is cold hungry
or thirsty which affects the bodily functions and not the motion.
4. Living things have a life span.
5. Living things produce waste.
Check your learning…
What two characteristic are described in the following statement?
“A human begins life as a single cell, whereas an adult is made up of trillions of cells”
1.2.
Characteristic of living things Non-living things with similar characteristic
• Grow in size, reproduce, are able to repair themselves
• Require energy
• Have a life span
• Responds to things in their environment
• Living things produce waste • A car produces waste in the form of fumes but is not alive
Introducing the amazing cell….The basic structural and functional
unit of all living things!
Living or Non-living?1. Check your learning….
2. http://www.saburchill.com/questions/lanlt001.html
3. E-Learning OntarioAre you ready to take care of an Amoeba ? ELO1395090
Introducing…The first true cells!
First were anaerobes (lived without oxygen) About 3- 3.5 billion years ago Became photosynthetic bacteria Began producing oxygen which built up in Earth’s atmosphere
You are very welcome!!!!
The Cell Theory
1. All living things are composed of one or more cells.
The theory that states that all living things consist of cells, that
the cell is the basic structural and functional unit of life, and that all cells come from pre-existing cells.
2. The cell is the basic unit of life.
3. All cells come from pre-existing cells.
Investigate the functions and processes of plant and animal cells
Investigate the basic structure and function of plant and animal cells
Does Size Matter?
Cells have a wide variety of sizes.Smallest: Bacterial Not more than 10μm ( 10 1/1000 of a mm)Typical human cell: About 100 μm Largest cell: Nerve cell of large animals About 10 m in length but very narrow
Bacterial cell Human Largest cells
1 cm in diameter 10 cm in diameter 10 000 m long
Compare the sizes of cellshttp://www.cellsalive.com/howbig.htm
Common Components of Plant and Animal Cells Organelles Cytoplasm Cell Membrane Nucleus Chromosomes Vacuoles Cell Movement
Plants are special because…..You will find out when you complete the following chart comparing plant and animal cells. (pg.104-107)
component Definition Animal cell
Plant cell
StructureLocation
Function
Organelle
Cytoplasm
Cell membrane
Nucleus
chromosones
vacuoles
Cell wall
chloroplast
flagella
cilia
Assignment #11. Complete table comparing the plant and animal
components. (Page 107 #4) What do you notice?2. Describe the main structural difference between
plant and animal cells. Explain why these differences are important for each type of cell.
3. Answer the key question “ What do all living things have in common?” Use words and diagrams.
Explore the parts of animal and plant cellshttp://www.cellsalive.com/cells/cell_model.htm
Assignment #11. Complete table comparing the plant and animal components. (Page
107 #4) What do you notice?2. Describe the main structural difference between plant and animal
cells. Explain why these differences are important for each type of cell.3. Answer the key question “ What do all living things have in common?”
Use words and diagrams.
Compare the sizes of cellshttp://www.cellsalive.com/howbig.htm
Introducing… the Microscope! Scientist: __________________________________
Advances in Microscopy(Page 111-112)
Light Microscope Electron Microscope
Advances in Microscopy
Light Microscope Electron Microscope
