Grade Eight Cells by https://padlet.com/ssarahkwak/sp3m7ltqus7 Cell notes for Mr. Hohensee's classroom. en-us 2018-04-05 17:15:57 UTC 2024-12-03 00:28:52 UTC hello@padlet.com https://padlet-assets.s3.amazonaws.com/icons/Apple.png History of Cells ssarahkwak https://padlet.com/ssarahkwak/sp3m7ltqus7/wish/248970450 Cell, meaning 'little room' in Latin, was discovered in 1665 by Robert Hooke.  It was first found and the founder said that it looked like a small 'cellula', later on saying that...

"By the help of microscopes, there is nothing so small, as to escape our inquiry; hence there is a new visible world discovered to the understanding."

]]> 2018-04-05 17:17:13 UTC https://padlet.com/ssarahkwak/sp3m7ltqus7/wish/248970450 An image of Latin Physicist, Scientist Robert Hooke ssarahkwak https://padlet.com/ssarahkwak/sp3m7ltqus7/wish/252315259 2018-04-16 19:18:05 UTC https://padlet.com/ssarahkwak/sp3m7ltqus7/wish/252315259 Basic Information ssarahkwak https://padlet.com/ssarahkwak/sp3m7ltqus7/wish/252317512 The cell is the fundamental unit of life; all living things have a cell, or cell(s). Without it, existence would be plainly impossible- although it is small in looks, it is not small in value. There are two types of cells that can be ultimately found through all different organisms, the prokaryotic cells, that don't have a nucleus, is made for unicellular organisms, while the eukaryotic (you-karyotic) cell is for plants and animals who have over a hundred trillion cells. Each different cell has a different job to do, which only increases our body's complexity. ]]> 2018-04-16 19:23:59 UTC https://padlet.com/ssarahkwak/sp3m7ltqus7/wish/252317512 Characteristics of all Living Things ssarahkwak https://padlet.com/ssarahkwak/sp3m7ltqus7/wish/253259501 1. All living things have cells, as per established
2. All living things reproduce, grow and repair themselves= cells do this by splitting into two
3. All living things require energy= plants get this from the sun, and animals get them from eating each other, or the plants. 
4. All living things respond to their environments or to each other 
5. All living things have a lifespan 
6. All living things produce waste, though differing ]]> 2018-04-19 02:35:43 UTC https://padlet.com/ssarahkwak/sp3m7ltqus7/wish/253259501 Cell Theory ssarahkwak https://padlet.com/ssarahkwak/sp3m7ltqus7/wish/253260237 This is the theory in which explains that all living things are made of cells- scientists and doctors of any kind study cells to help them understand how our body or certain things work; the theory is supported by two main ideas

 1. All living things are composed of one or more cells

 2. All new cells arise only from cells that already exist]]> 2018-04-19 02:40:46 UTC https://padlet.com/ssarahkwak/sp3m7ltqus7/wish/253260237 Animal Cells ssarahkwak https://padlet.com/ssarahkwak/sp3m7ltqus7/wish/253261731 1. Nucleus = the control centre of the cell, directs all of cell's activities (prokaryotic= doesn't have a nucleus)- the nucleus is surrounded by a fatty mo. layer called the membrane
2. Chromosomes = found inside the nucleus, containing DNA information and genetic information; this information is duplicated then, and sent to other identical cells
3. Cell Membrane = Controls the amount of nutrients coming in out of the cell- dubbed the 'gatekeeper' based off of it's work
4. Cytoplasm = Watery fluid that holds everything inside/ outside of the cell in proper place= stores water and waste when needed, and can transport materials from cell to cell quickly
5. Vacuole =  used to store water and nutrients, such as sugar and minerals;  also used to store waste and to move waste and excess water out of the cell 
6. Flagellum = The flagellum is the tail that works like a whip to move; it is not always attached to cells 
7. Cilia = The cilia is the tiny hair-like materials stuck on the cell's surface to move the fluids around the cell ]]> 2018-04-19 02:49:12 UTC https://padlet.com/ssarahkwak/sp3m7ltqus7/wish/253261731 Plant Cells ssarahkwak https://padlet.com/ssarahkwak/sp3m7ltqus7/wish/253264569 1. (follow above for information on the plant cell's nucleus, chromosome, cell membrane. cytoplasm, vacuole)
2. Chloroplast = Is the place where food is made for the plant cell- it is filled with many molecules of a green chemical called chlorophyll, in which creates food from the sun
3. The Cell Wall = keeps out and protects unneeded materials; however, water, gases, and some minerals can enter through small pores
4. Vacuole = the same as animal cells but is much larger to hold unneeded water]]> 2018-04-19 03:12:42 UTC https://padlet.com/ssarahkwak/sp3m7ltqus7/wish/253264569 ssarahkwak https://padlet.com/ssarahkwak/sp3m7ltqus7/wish/253265218 2018-04-19 03:17:50 UTC https://padlet.com/ssarahkwak/sp3m7ltqus7/wish/253265218 ssarahkwak https://padlet.com/ssarahkwak/sp3m7ltqus7/wish/253265356 2018-04-19 03:19:03 UTC https://padlet.com/ssarahkwak/sp3m7ltqus7/wish/253265356 Organelles in the Cytoplasm (The Working Area of the Cell) ssarahkwak https://padlet.com/ssarahkwak/sp3m7ltqus7/wish/253265559 1. Mitochondria = Produces energy for both plant + animal cells, combining sugar + oxygen molecules through a process called cellular respiration, creating energy, looks circular/ rod shaped, biggest organelle 
2. Ribosomes = Produces protein for both plant + animal cells, by copying information from the nucleus and other molecules from the cytoplasm, which is then used for cell-growth, repair and reproduction
3. Endoplasmic Reticulum = transports materials through the cytoplasm, while one has lots of ribosomes attached (rough), others are where lipids (fats) are made and so have less (smooth)
4. Golgi-Apparatus = stores proteins by putting them into packages called vesicles, into it's shape that looks similar to a stack of flat balloons; the vesicles then carry the proteins up to the surface of the cell, where they are released
5. Lysosomes = is a Golgi- Apparatus created organelle in which is in charge of patrolling and cleaning the cytoplasm. They are armed with special proteins that break down large molecules to a smaller size, to be then used by the cell- they also get rid of harmful bacteria + other invaders]]> 2018-04-19 03:21:06 UTC https://padlet.com/ssarahkwak/sp3m7ltqus7/wish/253265559 ssarahkwak https://padlet.com/ssarahkwak/sp3m7ltqus7/wish/253269300 2018-04-19 03:49:31 UTC https://padlet.com/ssarahkwak/sp3m7ltqus7/wish/253269300 ssarahkwak https://padlet.com/ssarahkwak/sp3m7ltqus7/wish/253269662 2018-04-19 03:51:47 UTC https://padlet.com/ssarahkwak/sp3m7ltqus7/wish/253269662 What is Osmosis? ssarahkwak https://padlet.com/ssarahkwak/sp3m7ltqus7/wish/253269794 The diffusion of water through a selectively permeable membrane is called Osmosis.

- BC Science Probe Textbook (pg 25)
]]> 2018-04-19 03:52:35 UTC https://padlet.com/ssarahkwak/sp3m7ltqus7/wish/253269794 What is Diffusion? ssarahkwak https://padlet.com/ssarahkwak/sp3m7ltqus7/wish/253270134 Diffusion is one of the ways that substances move into and out of cells. Diffusion continues until the concentration of the substance is the same inside and outside the cell.  

- BC Science Probe Textbook (pg 24)
]]> 2018-04-19 03:55:02 UTC https://padlet.com/ssarahkwak/sp3m7ltqus7/wish/253270134 What is Turgor Pressure? ssarahkwak https://padlet.com/ssarahkwak/sp3m7ltqus7/wish/253270611 Turgor pressure is when there is too many water molecules crowded up against the vacuole and the cytoplasm, moving toward the cell wall. This pressure is called 'Turgor Pressure'. When there is too much water filling up, the cell wall prevents the cell from exploding by prohibiting more water to enter the cell. ]]> 2018-04-19 03:58:10 UTC https://padlet.com/ssarahkwak/sp3m7ltqus7/wish/253270611 Single-Lens Microscope ssarahkwak https://padlet.com/ssarahkwak/sp3m7ltqus7/wish/253271372 2018-04-19 04:04:11 UTC https://padlet.com/ssarahkwak/sp3m7ltqus7/wish/253271372 Compound-Light Microscope ssarahkwak https://padlet.com/ssarahkwak/sp3m7ltqus7/wish/253271403 2018-04-19 04:04:26 UTC https://padlet.com/ssarahkwak/sp3m7ltqus7/wish/253271403 Transmission-Electron Microscope ssarahkwak https://padlet.com/ssarahkwak/sp3m7ltqus7/wish/253271463 2018-04-19 04:04:50 UTC https://padlet.com/ssarahkwak/sp3m7ltqus7/wish/253271463 Scanning-Electron Microscope ssarahkwak https://padlet.com/ssarahkwak/sp3m7ltqus7/wish/253271772 2018-04-19 04:07:00 UTC https://padlet.com/ssarahkwak/sp3m7ltqus7/wish/253271772 Osmosis and Diffusion ssarahkwak https://padlet.com/ssarahkwak/sp3m7ltqus7/wish/253272368 Extra Information for extra guidance]]> 2018-04-19 04:10:36 UTC https://padlet.com/ssarahkwak/sp3m7ltqus7/wish/253272368 Cell Wall ssarahkwak https://padlet.com/ssarahkwak/sp3m7ltqus7/wish/253272529 Keeps out extra water scrounging to get in]]> 2018-04-19 04:11:27 UTC https://padlet.com/ssarahkwak/sp3m7ltqus7/wish/253272529 ssarahkwak https://padlet.com/ssarahkwak/sp3m7ltqus7/wish/253272681 2018-04-19 04:12:27 UTC https://padlet.com/ssarahkwak/sp3m7ltqus7/wish/253272681 ssarahkwak https://padlet.com/ssarahkwak/sp3m7ltqus7/wish/253272758 2018-04-19 04:12:54 UTC https://padlet.com/ssarahkwak/sp3m7ltqus7/wish/253272758 ssarahkwak https://padlet.com/ssarahkwak/sp3m7ltqus7/wish/253272863 2018-04-19 04:13:41 UTC https://padlet.com/ssarahkwak/sp3m7ltqus7/wish/253272863 ssarahkwak https://padlet.com/ssarahkwak/sp3m7ltqus7/wish/253272944 2018-04-19 04:14:26 UTC https://padlet.com/ssarahkwak/sp3m7ltqus7/wish/253272944 Information ssarahkwak https://padlet.com/ssarahkwak/sp3m7ltqus7/wish/253272977 All my notes on the human body are handed in as linear notes on paper. If required, please feel free to ask, and I'll be glad to provide them as evidence!]]> 2018-04-19 04:14:45 UTC https://padlet.com/ssarahkwak/sp3m7ltqus7/wish/253272977 ssarahkwak https://padlet.com/ssarahkwak/sp3m7ltqus7/wish/253273130 2018-04-19 04:15:59 UTC https://padlet.com/ssarahkwak/sp3m7ltqus7/wish/253273130 ssarahkwak https://padlet.com/ssarahkwak/sp3m7ltqus7/wish/253273175 2018-04-19 04:16:20 UTC https://padlet.com/ssarahkwak/sp3m7ltqus7/wish/253273175 Unicellular Organisms ssarahkwak https://padlet.com/ssarahkwak/sp3m7ltqus7/wish/253634566 Unicellular organisms perform the same basic functions that multicellular organisms are also available to perform ]]> 2018-04-19 20:54:07 UTC https://padlet.com/ssarahkwak/sp3m7ltqus7/wish/253634566 ssarahkwak https://padlet.com/ssarahkwak/sp3m7ltqus7/wish/253635620 2018-04-19 20:59:06 UTC https://padlet.com/ssarahkwak/sp3m7ltqus7/wish/253635620 ssarahkwak https://padlet.com/ssarahkwak/sp3m7ltqus7/wish/253641428 2018-04-19 21:27:04 UTC https://padlet.com/ssarahkwak/sp3m7ltqus7/wish/253641428 ssarahkwak https://padlet.com/ssarahkwak/sp3m7ltqus7/wish/253641847 2018-04-19 21:29:52 UTC https://padlet.com/ssarahkwak/sp3m7ltqus7/wish/253641847 ssarahkwak https://padlet.com/ssarahkwak/sp3m7ltqus7/wish/253641988 2018-04-19 21:30:56 UTC https://padlet.com/ssarahkwak/sp3m7ltqus7/wish/253641988 ssarahkwak https://padlet.com/ssarahkwak/sp3m7ltqus7/wish/253641989 2018-04-19 21:30:56 UTC https://padlet.com/ssarahkwak/sp3m7ltqus7/wish/253641989