Name of Centre:

City and Islington College
Centre for Applied Sciences

 

Learner achievement (please circle) NB: All learner achievement is provisional until confirmed at the AVA Awards Board
Level Achieved:   L3
Final Grade Achieved 
(Level 3 units only)

P

M

D

Resubmission? Y N

Title of Access to HE Diploma:       Access to Forensic Science
Unit title(s):  Cells Unit code(s):  CBA799
Learner:   

Tutor/Assessor:  Paula Messam

Description of Assignment: 
This unit is assessed through a mixture of long answers, and practicals.
AC 1.1 (task 1) Involves labelling electron micrographs of cell organelles.
AC 2.1 (task 2) involves microscope practical, drawing and labeling cell plasma membranes.  This practical includes examination questions, it is closed book and timed.
AC 2.2 (task 3) involves written descriptions to explain the difference between osmosis, diffusion, active transport and bulk transport.
AC 3.1 (task 4) involves use of microscopes to draw and label meiosis and mitosis and written descriptions to explain the difference between meiosis and mitosis and when each occurs.
AC 4.1 and 4.2 (task 5) involves labelling diagrams of organs and explaining the functions of tissues
Date set:  21 September 2016
 
Date for draft submission
(if applicable): 
Date for final submission:  23rd November 2016
Extension date
(if agreed): 
Signed by Tutor/Assessor to agree extension: Date
submitted:
Learner declaration: Tick the boxes below
€        The explanations and evaluations in this work have been developed and written by me.
€        I have not submitted material copied from the Internet, text books or other sources in place of my own thinking and writing.
€        When I have referred to the work of others I have done so to discuss, comment on or argue their ideas.
€        I have kept quotation and paraphrasing to an absolute minimum and only to support points I have made.
€        I understand that referencing the names of authors whose ideas I have used without including my own interpretation of those ideas, does not meet the assessment criteria and cannot attract the Pass, Merit or Distinction grades.
€        I have not copied the work of my peers.
€        A copy of this work (minus hand drawn images) is on Turnitin.
Learner comments: (please use this space to comment on any aspect of the assessment when submitting your work)
Signature: Date: 

TO THE LEARNER: Please attach this assignment brief to any written work you are handing in for assessment, or submit the brief as instructed. 
YOUR WORK CANNOT BE ASSESSED UNLESS YOU HAVE SIGNED AND SUBMITTED THIS FORM


Level 3
Unit title:  Cells
This assignment addresses the following Assessment Criteria from the unit:
AC no Level Three
1 Understand the basic structure and function of the cell 1.1 Explain the structure and function of the main cellular components.
2 Understand how substances are transported across a cell membrane 2.1 Describe the structure and function of the cell membrane.
2.2 Explain the difference between osmosis, diffusion, active transport and bulk transport.
3 Understand the process of cell division 3.1 Explain the difference between meiosis and mitosis and explain when each occurs.
4 Understand the nature of multi-cellular organisms. 4.1 Explain the need for cellular specialisation in a multi-cellular organism.
4.2 Describe major tissue types and their functions.
Level 3 units only:
Learners achieve a Pass if they meet all Level 3 Assessment Criteria for a unit.  You will achieve a Merit or Distinction by meeting the following Grade Descriptors.  Your tutor will give you feedback for all grades.
Grade Descriptor Merit
(Choose one or more relevant grade components)
Distinction
(Choose one or more relevant grade components)
GD 1
Understanding of the subject
demonstrates a very good grasp of the relevant knowledge base demonstrates an excellent grasp of the relevant knowledge base
Grade Descriptor Merit
(Choose one or more relevant grade components)
Distinction
(Choose one or more relevant grade components)
GD7: Quality taken as a whole, demonstrates a very good response to the demands of the brief/assignment taken as a whole, demonstrates an excellent response to the demands of the brief/assignment
Grade Guidance: Learners must carefully read the guidance below which is linked to the components above
MERIT: To achieve a Merit
There will be an appropriate use of grammar, the majority of answers will use of full sentences.
Some citation in-text is present, it will be followed up with Harvard style referencing.   Answers are mostly structured logically, coherently, formally and impersonally (no use of I, we, you, he, she).  Few hyperlinks or websites will be included in any answers.  The word count will be frequently adhered to.
Work should be mostly provided in the correct order, clearly identified by Task number. [Quality]
 
Answers should include detailed coverage of all the key components of the tasks
Answers should demonstrate good judgement in the selection and use of reading materials for most tasks; they should be relevant and show detailed understanding of the form and functions of organelles, differences between transport energy requirements and transport methods, the difference between meiosis and mitosis and benefit of cell/tissue specialisation.   [Understanding of the Subject]

The laboratory drawing should demonstrate very good judgement in your selection of observational evidence, with a clear drawing that contains some detail.
Your work will demonstrate that you can interpret the electron micrograph images and can prioritise and illustrate the organelles form.  Your answers on movement across a cell membrane will show some use of the provided context and some solute examples.  The cell specialization answer should have examples gained from the laboratory practical sessions.  [Application of knowledge]

 
DISTINCTION: To achieve a Distinction

There will be an appropriate use of grammar throughout, with the use of full sentences.
Citation in-text will be followed up with Harvard style referencing, with published books, journals and some websites.  No quotes should be used; all answers should be original to the student.
Answers are structured logically, coherently, formally and impersonally (no use of I, we, you, he, she).  No hyperlinks or websites will be included in any answers.  The word count will be strictly adhered to.
Work should be provided in the correct order, clearly identified by Task number.  [Quality]

Answers should include comprehensive coverage of all the key components of the tasks
Answers should demonstrate excellent judgement in the selection and use of reading materials for most tasks; they should be current, relevant and show comprehensive understanding of the form and functions of organelles, differences between transport energy requirements and transport methods, the difference between meiosis and mitosis and benefit of cell/tissue specialisation.  [Understanding of the Subject]
 
Your work will demonstrate that you have a high level interpretation of the electron micrograph images and can correctly prioritise and illustrate the organelles form (focusing on relevant function related features).  Your answers on movement across a cell membrane will address the provided context and will be supported with solute examples.  The cell specialization answer should have appropriate examples gained from the laboratory practical sessions, these images should support the answer.
Specific named examples (of substances, organs/tissues) should be provided to apply theory. The laboratory drawing should demonstrate excellent judgement in your selection of observational evidence, with a clear, comprehensively detailed drawing.  [Application of knowledge]

 
Part A: Feedback on credit level
AC no Credit achieved (L3) Location of evidence Tutor/Assessor comments on assessment criteria
(you could also indicate on the work itself
where each AC is met)
1.1 Task 1                Where the AC have been met is noted on the work
2.1 Task 2
2.2 Task 3
3.1 Task 4
4.1 Task 5
4.2 Task 5
Level achieved Tutor/Assessor’s signature: Date:
 
Resubmission (if applicable) If any of the assessment criteria for this assignment have not been met at Level 3, a resubmission may be permitted.  Resubmission must follow the QAA guidelines and be permitted only once.
Requirements for resubmission/new Task set:

Date Set:

Date due:

Date Submitted:

Feedback on resubmission:
Level achieved
after resubmission:
Tutor/Assessor’s signature:

Date:

Part B: Feedback on grading (Applicable only if all assessment criteria achieved at Level 3)
Grade Descriptor Tutor/Assessor comments against grade descriptors Grade indicator
(P/M/D)
 
GD 1
Understanding of the subject
GD7: Quality
Tutor/Assessor’s reason for final grade decision (if applicable):

 
 
 
 
 
Task 1,
AC1.1 Explain the structure and function of the main cellular components.
 
The below electron micrograph images are of organelles in eukaryotic cells.  Show your understanding of what these images communicate by hand drawing the depicted organelles.

Label the organelle/s
Your hand drawing of the above image. Clearly label the organelle structure.
 
 
What is the function of the organelle? Maximum of 50 words.
For each of this cellular organelle’s components, explain how they help the cell to carry out its function.

 
 

Label the organelle/s
Your hand drawing of the above image. Clearly label the organelle structure.
 
 
What is the function of the organelle?
Maximum of 50 words.
For each of this cellular organelle’s components, explain how they help the cell to carry out its function.

 
 
 

Label the organelle/s
Your hand drawing of the above image. Clearly label the organelle structure.
 
 
What is the function of the organelle?
Maximum of 50 words.
For each of this cellular organelle’s components, explain how they help the cell to carry out its function.

 
 

Guidance

The purpose of your drawing is to show you can identify organelles from each other and can identify important physical features of the organelle.  To evidence this include labels on your drawings and only label organelles you are certain of.
Use colour and a sharp pencil in your drawings to make them clear.
When you discuss the function of the organelle and organelle components, include the structural labels you used.

 
Task 2
AC 2.1 Describe the structure and function of the cell membrane
 
 
Laboratory worksheet

Aims & Objectives
By the end of this session you should be able to

  • Use a light microscope
  • Make a wet mount
  • View plant cells under a microscope

Apparatus
Light microscope, onion piece, slides & cover slips, iodine solution, dropper, filter paper, mounted needle, forceps, scissors.

Eukaryotic Cells

Method

  1. Peel off a piece of epidermal tissue from the inner, concave surface of a piece of onion.
  1. Transfer the epithelial tissue to the slide, make sure it is not folded.
  1. Place a drop of iodine solution onto the slide.
  1. Use the mounted needle to lower the cover slip onto the preparation.
  1. Use filter paper to blot up the excess liquid, press the cover slip down gently (tap to remove air bubbles if they are present).
  1. Place the slide onto the stage of the microscope and use the low power lens to locate the specimen.
  1. Use a high power lens to locate and minimum of three cells in the field of view.
  1. Complete the following activity.

Q1       Use a light microscope to observe, draw and label a eukaryotic cell (plant), ensure you indicate where exactly plasma membranes are located.
Drawings should be in pencil, no shading is permitted, label outside of the circle.

Student Name ……………………………………………………
Group A   B   C   D (Circle please)

Title………………………………………………………………………………………

 
 
Published by Andrew Author at Best term paper site
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

Magnification…………………

Q2       Using the image below, describe the structure of the cell plasma membrane. Ensure you identify and use A-E in your answer, 50 words maximum.

Q3       Refering to the image below, explain how the individual components mentioned above, contribute to the numerous functions of this membrane be?  Use  A-E in your answer, 200 words maximum.

Q4       Draw arrows on the picture above to show where each of the following substances pass through.

  • Steroids,
  • Vitamin A or D,
  • Large Proteins,
  • Water,

Q5       Explain the process by which each of the above substances pass through (making reference to the different components of the cell membrane which are involved)

 
 
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