Category Archives: Grade 12

Desmos Art Functions Card 2023

  1. i figured out what functions to use just mainly by trial and error. once I had a proper understanding of the shapes of each function, and how it would fit on each line it became much easier to copy the image.
  2. Yes, I had quite a few challenges throughout making the images. The main one being the shading and colouring. In the beginning I didn’t understand why the equations based around the x wouldn’t work with the ones based around the y. I eventually figured it out and found an alternative way to do it which was by setting values instead of connecting directly to other functions.
  3. I would say I had a moment where it all clicked in while doing the outlines of the drawing, also another one while getting about halfway through the colouring.
  4. I got help from asking the Pahlevanlu during class about certain parts of the project I was unsure about.
  5. I didn’t really use any strategies, except for doing things in an order. I started with the outline, then the bulb outline, then I did the spots, then the shading lines, and then I coloured it all in at the end.
  6. This assignment helped me understand functions, transformations, and translations much more just through doing them over and over.

 

Mark  EDUBLOG POST: Process (5 marks)  Score 
5  I clearly described my process, strategies and how I resolved any difficulties I encountered. I correctly Tagged and Categorized my post. I inserted a picture of my desmos post card and the original picture.    
1  My explanation lacks detail and/or I have not described my problem-solving process. The link, desmos picture and/or original picture are missing.  5 
0  I did not complete the Edublog post.   
  Folders (5 marks)   
5  My folders are labelled with parts/objects/letters, and I correctly identified EVERY type of function and relation used.  5 
2  My folders are labelled with body parts and types of functions used. Some functions are not identified or incorrectly identified.    
0  I did not use folders.   
  Image (10 marks)   
10  My drawing resembles the photo I chose   
5  My drawing is starting to look like the photo chosen  10 
1  My drawing is missing or incomplete   
  Aesthetics (10 marks)   
10  Color and shading were used to strategically replicate the picture.   10 
5  A little shading was used.    
1  No thought was put into the use of color or shading   
  Functions & Relations (10 marks)   
10  I used all 10 types of functions/Relations required. Absolute Value, Polynomial, Rational, Radical, Trigonometric, Exponential and Logarithmic, Sideways Parabolas, Semicircles, Ellipses.  10 
x  I used only x of the required types   
  Function notation (30 marks)        
30  I made excellent use of function notation to transform the same function repeatedly    30 
10  I used function notation a few times to transform the same function repeatedly.   
0  I wrote new equations every single time and did not use function notation.   
  Creativity and Complexity of Functions & Relations (30 marks)    
30  My equations show complexity and creativity. I used multiple transformations. (Stretches, Reflections, Translations, Inverses). I made excellent use of domain and/or range restrictions. I combined functions from different units.   30 
15  I used mostly the same type of functions, with some transformations. My functions sometimes overlap because I could not figure out the correct domain and/or range.    
10  My equations lack complexity and creativity.   
  Total mark: 

(100) 

 

100 

 

Neuron Communication Summary

Neuron Communication Summary

What Is a Neuron? Diagrams, Types, Function, and More
Sensory Neuron

Neuron Structure – The 3 types of neurons are: Motor Neurons, Inter neurons, and Sensory Neurons. These 3 types all perform different tasks that involve sending signals. All these neurons consist of the same basic parts that include Soma/Cell Body, Nucleus, Dendrites, Axon, Myelin Sheath, Axon Terminals, Synaptic Ending, and Schwann Cells.

Nucleus: provides the energy and instruction to carry out the functions

Dendrite: Responsible for receiving and processing information from other neurons and receptors and conducting the information towards the cell body

Soma/Cell Body: Maintains the cell body and makes sure the neuron is functioning efficiently

Axon: Carries neurons message to other areas of the body

Myelin sheath: Covers the axon and allows electrical impulses to move quickly

Axon Terminal: forming connections with other cells

Node of Ranvier: the gap in the Myelin Sheath that occurs between the gaps of Schwann Cells. It allows fast electrical impulses to be sent along the axon’s.

Synaptic Endings: change electrical impulses created by the cell into activity in muscle fibres

Schwann Cells: Wraps around the axon: Action potential moves from node to node along the cell

 

Neuron Function –

The basic function of a neuron is to transmit and process information. They receive, send, and pass on signals allowing the nervous system to do its job.

Motor Neurons – Transmit signals from the brain to muscles for movement

Inter Neurons – Connect sensory neurons and motor neurons, helping process and use information within the nervous system.

Sensory Neurons – Detect and transmit sensory information from the body to the brain, allowing us to perceive and understand the environment.

Resting Potential – 

Resting potential is the baseline electrical charge of a neuron when it is not actively sending or receiving signals.

During this time the neuron stays stable in anticipation for the next signal.

Refractory Period – 

The refractory period is a brief period of time following an action potential, during which a neuron is temporarily unresponsive to further stimulation.

The neuron is unresponsive to stimulation while it recovers and resets the ability to generate action potential

How does action potential move along the neuron fibre?

An action potential is created when positively charged ions move in and out of channels in the axon membrane. It travels along the axon at a steady speed. Next comes depolarization, which causes an imbalance of ions in the axon membrane. This opens up pores, allowing positive sodium ions to flow in. Finally, repolarization occurs when channels open, allowing sodium ions to leave the axon. This triggers depolarization in the next segment of the axon, since depolarization is triggered from the axon receiving some form of strong stimulus, or signal.

 

 

Synapse Structure –

 

Synapse Function  – How is signal sent from “axon of sending neuron” to “dendrite of receiving neuron”?

The axon of sending neuron sends a signal and when it gets the end of the axon, action potential causes synaptic vesicles to allow the neurotransmitter into the synaptic gap. The neurotransmitter then diffuses through the gap and binds to the receiving neuron

 

 

How does the receiving neuron determine whether or not it should send action potential?

The neuron categorizes incoming signals as either excitatory or inhibitory based on the neurotransmitter it receives. If the signal is received as excitatory, it triggers an action potential in the receiving neuron. If the signal is received as inhibitory, it doesn’t send an action potential in the receiving neuron.

 

Cite of Image –

Janghu, P. K. (2018, July 5). Synapses – definition, types and structure , anatomy QA. Anatomy QA. https://anatomyqa.com/synapses-types-and-structure/