BIO LAB 5
Lenses to look through to view the specimen
Upper part of the microscope containing oculars and rotating nose piece
Narrow, vertical part connecting the head and base. It may be straight or curved and supports the upper parts and provides a carrying handle
Revolving device located below the ocular lenses. It serves as an attachment for the objective lenses. The viewer can rotate the nose piece to change from one objective lens to another
Rotating Nose Piece
Magnification 4x The shortest of the objective lenses, used to scan the whole slide.
Magnification 10x. Longer than the scanning lens and is used to view objects in greater detail.
Low power lens
Magnification 40x. Used to view an object at even greater detail.
High Power Lens
Magnification 100x. Used in conjunction with immersion oil to view objects with the greatest magnification.
Oil Immersion Lens
Keeps the specimen slide stationary while viewing.
Two knobs that allow the movement of the specimen slide on the stage while viewing
The flat platform connected to the arm and beneath the objective lenses, upon which the specimen slide is placed
A lens located just below the stage that concentrates light on the specimen. Best position is close to the stage.
Knob allowing the viewer to control the position of the condenser
A lever located beneath the condenser, regulates light passing through the condenser
Iris Diaphragm Lever
2 knobs on either side of the microscope at the base of the arm. Usually the largest knobs on the arm. Turning them will raise and lower the stage
Coarse adjustment knob
2 knobs usually located in the center of each coarse adjustment knob. Used for precision focusing. Raise and lower the stage in very small increments
Fine adjustment knob
A light within the base providing the light source for illumination of the specimen.
Dial that adjusts the light intensity allowed through the condenser on to the specimen
The supportive flat surface of the microscope that rests on the table
All the organelles plus the cytoplasm
Similarities of Prokaryote and Eukaryotic Cells
THERE ARE 4
2. CELL MEMBRANE
DIFFERENCES BETWEEN PROKARYOTE AND EUKARYOTIC CELLS
THERE ARE 4
1. MEMBRANE BOUND ORGANELLES
3. NUCLEUS/ EUKARYOTE
4. NUCLEOID/ PROKARYOTE
LOVE EXTREME CONDITIONS
Once an object is in focus using the scanning lens; it will remain in coarse focus when the lenses are changed to higher power. DON'T HAVE TO REFOCUS
What you see when you look through the microscope.
FIELD OF VIEW
Occular X Objective
BIO LAB 5
BIOLOGY LAB 5 MICROSCOPE