What do all living things have in common?

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Presentation transcript:

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. Repair worn or injured parts Grow in size Produce offspring

2. Living things require energy.

3 Living things respond to changes in their environment. Animals try to escape from predators. 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. Plants grow in the direction of moist soil…and the sun.

4. Living things have a life span.

5. Living things produce waste.

What two characteristic are described in the following statement? Check your learning… 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 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.

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 Ontario Are you ready to take care of an Amoeba ? ELO1395090

Introducing… The first true cells! You are very welcome!!!! 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

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. The Cell Theory Investigate the functions and processes of plant and animal cells Investigate the basic structure and function of plant and animal cells 1. All living things are composed of one or more cells. 2. The cell is the basic unit of life. 3. All cells come from pre-existing 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 cells http://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 Structure Location Function Organelle Cytoplasm Cell membrane Nucleus chromosones vacuoles Cell wall chloroplast flagella cilia Assignment #1 Complete table comparing the plant and animal components. (Page 107 #4) What do you notice? Describe the main structural difference between plant and animal cells. Explain why these differences are important for each type of cell. Answer the key question “ What do all living things have in common?” Use words and diagrams.

Explore the parts of animal and plant cells http://www. cellsalive Assignment #1 Complete table comparing the plant and animal components. (Page 107 #4) What do you notice? Describe the main structural difference between plant and animal cells. Explain why these differences are important for each type of cell. Answer the key question “ What do all living things have in common?” Use words and diagrams.

Compare the sizes of cells http://www.cellsalive.com/howbig.htm

Introducing… the Microscope Introducing… the Microscope! Scientist: __________________________________

Advances in Microscopy (Page 111-112) Light Microscope Electron Microscope

Advances in Microscopy Light Microscope Electron Microscope

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