Teaching a Lesson

Teaching a Lesson

Teaching a Lesson LE Lesson Using Regents Diagrams Gary Carlin Leadership LSO April 23, 2010

M.S. 101 Q

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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 wetmount 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 m

(2) 800 m (3) 1200 m (4) 1600 m

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

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