Shared Flashcard Set

Details

Lab 4
Microscope and Overview of the Cell
30
Anatomy
Undergraduate 2
10/14/2011

Additional Anatomy Flashcards

 


 

Cards

Term
Ocular Lens
Definition
The eyepiece
Term
Nose Piece
Definition
Disc at bottom of body tube into which three or four objective lenses are mounted
Term
Objective Lenses
Definition
Three or four objective lenses are screwed into the nosepiece
Term
Stage
Definition
Horizontal platform upon which a slide is placed for observation
Term
Mechanical Stage
Definition
What moves the slides via knobs on the microscope
Term
Coarse Adjustment Knob
Definition
Largest knob on the side of the microscope
Term
Fine Adjustment Knob
Definition
Smaller knob on the side of the microscope
Term
Condenser/Condenser Lens
Definition
Small lens beneath the stage that condenses or concentrates the light below the stage and directs it upwards. The condensor should be in its highest position, as close as possible to the specimen
Term
Iris Diaphragm Lever
Definition
Regulates the amount of light that passes through the condensor, and it is adjusted to obtain optimal contrast and minimal glare
Term
Base
Definition
flat, lower support of the microscope
Term
Field of View
Definition
the circle that you see when you look into the microscope
Term
Total Magnification
Definition
is equal to the ocular magnification times the objective magnification
Term
Working Distance
Definition
Distance between the bottom surface of the objective lens and the upper surface of the specimen slide
Term
Parfocal
Definition
The ability of a microscope to keep an image in focus from one magnification to another
Term
Depth of Field
Definition
Vertical layer of a specimen that is in focus
Term
Letter e in a microscope
Definition
backwards and upside down
Term
Plasma membrane
Definition
Composed of phospholipids, cholesterols, proteins
Term
Cytoplasm
Definition
Cellular material surrounding the nucleus and enclosed by the plasma membrane
Term
Nucleus
Definition
Control Center of the cell, contains genetic material, clusters of nerve cell bodies in the CNS
Term
Nuclear Envelope
Definition
Double-membrane barrier of a cell nucleus
Term
Nucleolus
Definition
Dense spherical bodies in the cell nucleus involved with ribosomal subunit synthesis
Term
Chromatin/Chromosomes
Definition
Structures in the nucleus that carry hereditary factors (genes), barlike bodies of tightly coiled chromatin visible during cell division
Term
Ribosomes
Definition
Organelles at which proteins are synthesized
Term
Mitochondria
Definition
Cytoplasmic organelles responsible for ATP generation
Term
Centrioles
Definition
Minute body found near the nucleus of the cells, active in cell division.
Term
Lysosomes
Definition
Organelles that originate from the golgi apparatus and contain strong digestive enzymes
Term
Peroxisomes
Definition
Membranous sacs in cytoplasm containing powerful oxidase enzymes that use molecules or oxygen to detoxify harmful or toxic substances such as free radicals
Term
Smooth ER
Definition
Lipid metabolism, cholesterol synthesis, synthesis of glycerol components of lipoproteins (in liver cells), synthesis of steroid-based hormones, absorption, synthesis and transport of fats, detoxification of drugs, certain pesticides, and carcinogens. Breakdown of stored glycogen to form free glucose, calcium ion storage
Term
Golgi apparatus
Definition
Membranes system close to the cell nucleus that packages protein secretions for export, packages enzymes into lysosomes for cellular uses and packaging proteins into lysosomes for cellular use and modifies protein destined to be come part of cellular membranes
Term
Rough ER
Definition
sugar groups are attached to proteins within the cisternae, proteins are bound in vesicles for transport to the Golgi and other sites, external face synthesizes phospholipids
Supporting users have an ad free experience!