Q2-G9 Biochemistry Benchmark: Cell Microscopy
Student Guide
AIM: Students will prepare a digital portfolio that displays and describes microscopy images. Each image should have a title, date,
and magnification. Any visible cell structures should be clearly labeled. As part of the portfolio, address each question (See Fig. 1
below) using modern standard English and complete sentences. DRAFT Due Jan 11 (M); FINAL Due in Jan 16 (M).
AGENDA:
1) Organize your PPT, Keynote (or other program) with each
of the slides/pages listed below.
2) Insert and label images with title, date and magnification.
3) Insert text that addresses each question below.
4) Check for accuracy, spelling, punctuation, grammar, and
consistent layout/design.
Fig.1: Benchmark summary with Slide, Description and Questions
SLIDE DESCRIPTION
QUESTIONS TO BE ADDRESSED
Title, name, stream
Title
Abstract: 2-3 sentence
1
 What is the purpose of this portfolio?
summary
2
Onion cell:
40x, 100x, 400x
 What structure is responsible for the shape of onion cells? What other
functions does this structure have?
3
Cheek cell:
40x, 100x, 400x
 How and why does the shape differ from onion cells?
4
mm Grid:
40x, 100x, 400x
 How can you calculate diameter of microscope’s field of view (mm, m)?
 How can you calculate diameter of the photo’s field of view (mm, m)?
 What is the thickness of the line? Explain how you found this answer.
5
Size comparison
-cheek cell labeled with
its size in µm
-onion cell labeled with
its size in m
Onion cell 40X before
and after salt solution
 Give a detailed description of the steps necessary to estimate the size of a
cell.
7
Onion cell 100X before
and after salt solution
 Label cell wall and cell membrane when visible.
8
Salt solution explanation
 Why did the cells’ appearance change after adding salt water? Your
explanation should include words like osmosis, diffusion, permeable, and
selectively permeable.
9
Student Choice:
 Inquiry: Describe a question and discuss your answer(s).
10
Student Choice:
 Inquiry: Describe a question and discuss your answer(s).
11
Acknowledgements
 List first and last name(s) any partners you worked with during this
project.
6
DONE ()
 Label cell wall and cell membrane when visible.
ASSESSMENT:
Design: Each slide contains a title, date and magnification (using Fig. 1, Fig. 2, etc.); consistent use of correct spelling, grammar,
punctuation and labeling of charts/diagrams will also be evident.
Knowledge: Each image is accurately focused, identified and all visible cell structures are clearly and correctly labeled.
Application: All questions/explanations are answered correctly.
Presentation: Each slide’s colors, text, fonts, labeling, arrows, etc. integrate Contrast, Repetition, Alignment and Proximity.
Process: The portfolio is completed on time. Class time is used effectively.