Teaching a Lesson LE Lesson
Using Regents Diagrams
Gary Carlin
Leadership LSO
April 23, 2010
M.S. 101
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ISLA – May 06
• 27 The diagram below shows a simple microscope.
Four parts of the microscope are labeled A, B, C, and D.
• Which part of the microscope is used to bring the
image of the object on the slide into focus?
(1) A
(3) C
(2) B
(4) D
ISLA Spring 07
• 1 Three different human cells are shown below.
• Which process occurs in all of these cells?
• (1) metamorphosis (3) reproduction
• (2) locomotion (4) photosynthesis
ISLA – June 04
• 16 The diagram below shows a student making a
wet-mount slide.
• Why should the student make sure the edge of the
coverslip touches the drop of water before setting
the coverslip onto the slide?
• (1) to increase evaporation
• (2) to reduce air bubbles
• (3) to clean the slide
• (4) to prevent the coverslip from breaking
LE Regents – June 09
• 3 Which cell structure contains information
needed for protein synthesis?
LE Regents – June 08
• 31 Which laboratory procedure is represented in
the diagram below?
• (1) placing a coverslip over a specimen
• (2) removing a coverslip from a slide
• (3) adding stain to a slide without removing the
coverslip
• (4) reducing the size of air bubbles under a
coverslip
Regents – June 08
• 79 A plant cell in a microscopic field of view is
represented below.
•
•
•
•
•
The width (w) of this plant cell is closest to
(1) 200 μm
(2) 800 μm
(3) 1200 μm
(4) 1600 μm
Regents – Jan 06
• 31 The diagram below shows how a coverslip should be
lowered onto some single-celled organisms during the
preparation of a wet mount.
•
•
•
•
•
Why is this a preferred procedure?
(1) The coverslip will prevent the slide from breaking.
(2) The organisms will be more evenly distributed.
(3) The possibility of breaking the coverslip is reduced.
(4) The possibility of trapping air bubbles is reduced.
Regents – Jan 05
• 35 The diagrams below show four different
onecelled organisms (shaded) in the field of view
of the same microscope using different
magnifications.
• Which illustration shows the largest one-celled
organism?
Regents – June 04
• 56 Describe how structures 1 and 2 interact in
the process of protein synthesis. [1]
• 57 Choose either structure 3 or structure 4,
write the number of the structure on the line
below, and describe how it aids the process of
protein synthesis. [1]
• Structure: ________
Regents – Aug 02
• 39 The photograph below shows a microscopic
view of the lower surface of a leaf.
• What is the main function of the cells indicated by
the black pointer?
• (1) regulate the rate of gas exchange
• (2) store food for winter dormancy
• (3) undergo mitotic cell division
• (4) give support to the veins in the leaf
Regents – Jan 10
• 75 A laboratory technique is illustrated in the diagram
below.
• The technique of lowering the coverslip at an angle is
used to
• (1) make organelles more visible
• (2) reduce the formation of air bubbles
• (3) make the specimen transparent
• (4) reduce the size of the specimen
Regents – Jan 10
• 76 Information about which two lettered parts is
needed in order to determine the total
magnification of an object viewed with the
microscope in the position shown? [1]
• ____________ and ____________
• 77 Which lettered part should be used to focus
the image while using high power? [1]
• ____________
• 78 State two ways the image seen through the
microscope differs from the actual
• specimen being observed. [1]
• ________________________________ and
__________________________________
Regents – June 09
• 67 Which diagram best illustrates the
technique that would most likely be used to
add salt to these cells?
• 68 In the space below, sketch what cell A would
look like after the addition of the salt. [1]
Regents – Jan 09
• 78 Identify a process that caused the change in the cells. [1]
• ___________________________________
• 79 To observe the cells on this slide it is best to start out using
the
• (1) high-power objective and focus using the coarse
adjustment, only
• (2) low-power objective and focus using the fine adjustment,
only
• (3) high-power objective and focus using the fine adjustment
• (4) low-power objective and focus using the coarse
adjustment
Regents – June 05
• 73 A student prepared a wet-mount slide of some
red onion cells and then added some salt water to
the slide. The student observed the slide using a
compound light microscope. Diagram A is typical of
what the student observed after adding salt water.
• Complete diagram B to show how the contents of
the red onion cells should appear if the cell were
then rinsed with distilled water for several minutes.
[1]
Magnification
Letter “e” – 40x & 100X
Refraction: Loss of Light
LP and HP
Red Onion Cells
Elodea
Microscope Measurement
Air Bubbles
Stomates
Animal Cell
Simple Microscope
A Wet Mount
Depression Slide
Onion Root Tip
Epidermal Cells
Solutions
Cell Membrane
Cell Communication
Carrier Proteins
State Lab: Diffusion
Anton van Leeuwenhoek
Robert Hooke
Refraction of Light
Refraction Analogy