Embedded Files
Hopefully you can remember what a cell is ....?? Anyway to shake the dust off here is a reminder for you - its a video I made for my Yr 9 classes = a good place to start. (Learn)
Step 1 : Okay its time to dive deeper into cells ..... in my video above it started with the journey from a cell to an organism = we need a bunch of different organ systems working together to enable us to be us. Well inside a cell its kind of similar but on a much smaller scale = a bunch of mini - organs working together to let the cell do what it does. We call these mini - organs organelles.
Lets look at cells in more detail = the level we need to be working at. (Learn)
Got all that?? Hit replay as many times as you need ..... But you need to know a bit more detail about each of these organelles ..... so here that is explained for you. (Learn)
In this video Paul mentions another video = here it is .... but you'll find out that you won't know a lot of what is going on. Enjoy it now but come back once we've worked our way through all this information and see if it makes more sense then.
But probably the easiest way to think about a cell is like a little factory .... here are the images form the first video.
Mission 1 : Replay these clips if needed but now its time to read and complete the pages on Animal and Plants cell organelles plus the work on Identifying animal and plant cell structures. (Learn)
Challenge 1 : How do you tell the difference between a plant and animal cell?? (Share)
Done that? = Share with your teacher.
Yes = now its time for your next Step/Video clip/Challenge/Mission.
No = go back and complete the Step/Video clip/Challenge/Mission please.
Step 2 : Just as our skin is our biggest organ - and really important at keeping the outside out and the inside in - Cells have a membrane around them - but its so much more than just a "skin" or a "Factory fence"
Every organelle has membrane around them = the membrane and knowing about it is really important.
Here is a collection of information to help you with how important and complex the membrane is. The explanations get more complex - so watch as many or as few as you need. (Learn)
Mission 2 : Lets see how much you have absorbed - read and complete the page on Plasma Membrane. (Learn)
Done that? = Share with your teacher.
Yes = now its time for your next Step/Video clip/Challenge/Mission.
No = go back and complete the Step/Video clip/Challenge/Mission please.
Challenge 2 : Read the investigation on the effect of temperature on the plasma membrane .... as time and resources permit we'll do this in class. BUT first - what is your Hypothesis - what do you think will happen - and why? (Learn) (Share)
Step 3 : So where do we get our energy from ?? = Respiration = the breakdown of glucose with oxygen to release energy plus carbon dioxide and water - basically controlled combustion.
This all happens in and around an organelle called the Mitochondria (singular = mitochondrion)
Think of a mitochondrion as being like your phone charger - lose the charger = phone battery goes flat = life as we know ends. Your cells are full of mitochondria = they are pretty important - the more energy your cells need = the more mitochondria the cells have. They are the cells power-plants.
Have a look as we get a tour of the mitochondria. (Learn)
Mission 3 : Lets see what you've understood from all that - read and complete the work on the structure of mitochondria. (Learn)
Done that? = Share with your teacher.
Yes = now its time for your next Step/Video clip/Challenge/Mission.
No = go back and complete the Step/Video clip/Challenge/Mission please.
Step 4 : Its one thing to know about the structure but we also need to know what actually is going on inside the mitochondria - you know what life can be like with no phone charger - how about no mitochondria?? What about no phone charger but a little power bank?
So we have two different respiration's that can happen in us - depending on our needs. one happens when we have plenty of oxygen available = Aerobic respiration = plugging into the mains for lots of energy. The other is Anaerobic respiration - the power bank for a quick top up on the go but doesn't last long.
Its both simple and super complex - unfortunately you need to know them both ..... Here are some explanations. Simple first .... then the more detail that you also need. (Learn)
Mission 4 : Now use some of your energy and read and complete the work on mitochondria, the cytoplasm and both aerobic and anaerobic respiration. (Learn)
Done that? = Share with your teacher.
Yes = now its time for your next Step/Video clip/Challenge/Mission.
No = go back and complete the Step/Video clip/Challenge/Mission please.
Challenge 3 : How about a practice exam question based on respiration .... using what you now know answer the question on respiration in intertidal mussels.
First put down all your thoughts (on the question) - in whatever order they arrive in - like bullet points. Then look at what the question is asking of you = coordinate or reorder your thoughts to answer the question. (Learn) (Create) (Share)
Done that? = Share with your teacher.
Yes = now its time for your next Step/Video clip/Challenge/Mission.
No = go back and complete the Step/Video clip/Challenge/Mission please.
Step 5 : So much going on - and a common theme molecule is this thing called ATP - it is our rechargeable "battery" that the mitochondria (the charger) is producing. It is a super complex process starting in the cytoplasm and then carrying on in and on the mitochondria. Here is a look at ATP and how it is manufactured in us. (Learn)
Mission 5 : Your turn to try and make sense of the ATP - ADP - ATP cycle. Read and complete the page on this in your workbook. (Learn)
Done that? = Share with your teacher.
Yes = now its time for your next Step/Video clip/Challenge/Mission.
No = go back and complete the Step/Video clip/Challenge/Mission please.
Challenge 4 : Here is another practice question about how different cells have different energy needs. Look at the bullet points in the question = your checklist for the answer. Same as before just put your thoughts down as bullet points as they come to you. Then reorder and organise them in a coherent answer = read it aloud back to your self - does it make sense?? (Learn) (Create) (Share)
Step 6 : So far we have a "fence" for the cell and the cells "power-plants" - now we lets look at the "assembly machines". Or as they are more correctly known as the Endoplasmic Reticulum. That's quite a mouthful so its commonly shortened to just the ER. It comes in two versions - a rough = RER or a smooth = SER. Lets find out more about them both.
Here is a tour of them both in a 3-D representation of a cell. (Learn)
Mission 6 : Read and complete the page on ER in your workbook (Learn)
Done that? = Share with your teacher.
Yes = now its time for your next Step/Video clip/Challenge/Mission.
No = go back and complete the Step/Video clip/Challenge/Mission please.
Step 7 : On any modern factory assembly line you'll find programmable assembly robots - its no different in the cell = these are the ribosomes mentioned in the video about the ER.
They do a super complex job - which we'll get into in more detail later, but here is simply put what they are and do. (Learn)
Mission 7 : Time to read and complete the page on Ribosomes. (Learn)
Done that? = Share with your teacher.
Yes = now its time for your next Step/Video clip/Challenge/Mission.
No = go back and complete the Step/Video clip/Challenge/Mission please.
Step 8 : So the 'Assembly machine/robots' have made some stuff ..... what now ..... well in a factory the products made need to be packaged and transported to where they are needed. In a cell this task is carried out by a structure called the Golgi Body, or sometimes the Golgi Apparatus.
Here are an explanation and an animation of the Golgi doing its job. (Learn)
Mission 8 : How are you going to process and package your answers as you complete the page on the Golgi body/apparatus/complex .... (Learn)
Done that? = Share with your teacher.
Yes = now its time for your next Step/Video clip/Challenge/Mission.
No = go back and complete the Step/Video clip/Challenge/Mission please.
Step 9 : now its not shown in the cell factory diagram ..... but every factory/cell needs a cleaning department. In our cell this task is done by another little membrane bound thingy called a Lysosome.
Imagine life without cleaners ....
Meet the lysosomes. (Learn)
Mission 9 : See how you get on with the questions about our cells cleaners, there are some tricky ones. (Learn)
Done that? = Share with your teacher.
Yes = now its time for your next Step/Video clip/Challenge/Mission.
No = go back and complete the Step/Video clip/Challenge/Mission please.
Step 10 : In modern factories there is often an expectation that renewable energy sources will be used to help power the factory - more commonly we are seeing factory roof space being used for solar energy production. We are so far behind the times - cells have had "solar panels" in them like almost forever. Well only plant cells and they are called Chloroplasts.
Guess what .... they also have a membrane around them - Look .... (Learn)
Mission 10 : Got all that?? lets find out as you try out the questions in your workbooks. (Learn)
Done that? = Share with your teacher.
Yes = now its time for your next Step/Video clip/Challenge/Mission.
No = go back and complete the Step/Video clip/Challenge/Mission please.
Step 11 : So where in the plant do we find these chloroplasts - in the leaves mostly = these can be thought of as the plants solar panels. So how is the leaf put together so it can gt the light it needs and the gases in and out as photosynthesis happens.
Have a look. (Learn)
Mission 11 / Challenge 5 : putting what you've learn together describe why the leaf is put together the way it is. Same as before - just put your thoughts down as bullet points as they come to you. Then reorder and organise them in a coherent answer = read it aloud back to your self - does it make sense?? (Learn) (Create) (Share)
Done that? = Share with your teacher.
Yes = now its time for your next Step/Video clip/Challenge/Mission.
No = go back and complete the Step/Video clip/Challenge/Mission please.
Step 12 : So now we have the solar energy cell (Chloroplast) and the solar panel (the Leaf) - what is the actual process of making energy?? Remember back to Yr 9? That really big word -Photosynthesis = using light to put things together to make energy in the form of glucose.
So how is that done .... we'll start simply then a bit more complex and then sing about it. (Learn)
Mission 12 : Still singing? Use that stuck in your head thing to help you with the pages on Photosynthesis and the chemistry of photosynthesis. (Learn)
Done that? = Share with your teacher.
Yes = now its time for your next Step/Video clip/Challenge/Mission.
No = go back and complete the Step/Video clip/Challenge/Mission please.
Challenge 6 : Time to put several bits of information together to explore how various things can effect the rate of photosynthesis. Read the information given to you - watch the video too. Do your best to use the clues given to extract the answers. (Learn) (Create) (Share)
Done that? = Share with your teacher.
Yes = now its time for your next Step/Video clip/Challenge/Mission.
No = go back and complete the Step/Video clip/Challenge/Mission please.
Mission 13 : At the end of this section of your workbook you'll find (maybe) a puzzle page or two, a review planning page then a practice copy of the end of topic test. Complete these pages plus don't forget the definition page found at the start of the topic = you'll be ready for the test. (Learn)
Done that? = Share with your teacher.
Yes = now its time for your next Step/Video clip/Challenge/Mission.
No = go back and complete the Step/Video clip/Challenge/Mission please.
Cell structures review questions - you should have completed these by now = we'll go over the answers together. This should give you an idea of where you are at with your understanding of cell structures = let you know what you need to do the get ready for the practice exam at the end of the whole section on cell structures and functions.
Report abuse