Prelims

Question 1

Branch of Science that focuses on heredity and variation - how traits are passed down from parents to their offspring

Answer 1

Genetics

Question 2

Foundational Tool in Cell Biology

Answer 2

Microscopy

Question 3

Who first observed microscopic “animacules” in pond water

Answer 3

Anton Van Leeuwehoek (1632-1723)

Question 4

Identified the cellular structure in cork

Answer 4

Robert Hooke (1635-1703)

Question 5

The smallest unit of living organism

Answer 5

Cell

Question 6

Regulates the movements of substances in and out. Maintaining internal stability

Answer 6

Cell Membrane

Question 7

Each Cell contains DNA, which serves as the genetic blueprint of life

Answer 7

Genetic Material

Question 8

Cells metabolize energy and materials to sustain life processes

Answer 8

Energy Processing

Question 9

Cells have the capacity to grow and divide

Answer 9

Growth and Reproduction

Question 10

This turns the illumination on and off

Answer 10

Power Switch

Question 11

Bottom part that provides stability and supports all other parts of the microscope

Answer 11

Base

Question 12

Forms the supporting mechanism for the optical portion of the microscope. It supports the tube and connects to the base of the microscope.

Answer 12

Arm

Question 14

This portion is attached to the arm and supports the lenses. It connects the eyepiece of the objective lenses to the stage

Answer 14

Body Tube

Question 15

The platform used for placing the slides under observation. The hole in the center of the stage allows light rays to pass through the object to be viewed on your slide.

Answer 15

Mechanical Stage

Question 16

The knobs at the edge of the stage that moves the slide

Answer 16

Stage Knob

Question 17

from:
left to right

Answer 17

X-axis knob

Question 18

from:
up or down

Answer 18

Y-axis knob

Question 18

Keep the glass slide in place. The stage contains two clips attached at both
sides.

Answer 18

Stage Clips

Question 18

These are the lenses you look into

Answer 18

Eyepiece

Question 18

The area under the stage

Answer 18

Substage

Question 18

substage, may contain a

Answer 18

diaphragm, a condenser, or
both.

Question 19

Your scopes have two ocular lenses and are called

Answer 19

binocular compound microscopes

Question 20

The lenses attached to the nosepiece are known as the_______ for they are nearest to the object being viewed

Answer 20

Objective Lenses

Question 20

At the bottom of the body tube / Also known as the turret. Various magnifying capacities will be brought into position. Rotate the nosepiece and note the decided "click" as each objective lens comes into place.

Answer 20

Revolving Nosepiece

Question 21

Used to examine relatively large objects or to scan the slide for smaller objects to view;

Answer 21

4X scanning objective (scanner)

Question 22

LPO

Answer 22

10x low power objective

Question 23

HPO

Answer 23

40X high power objective

Question 24

To be used only to view very small objects (e.g., bacteria) under oil immersion procedures (oil immersion lenses have a black and a white ring around the barrel).

Answer 24

100x oil immersion objective (OIO)

Question 25

Concentrates light through the specimen When very high powers of 400X are used, this lenses are very important as the presence of this lens gives a sharper image.

Answer 25

Condenser

Question 26

Below the condenser, or fused to it, is another mechanism for light adjustment, which opens and closes by rotating a knurled ring which is concentric with it. This adjustment regulates the amount of light that passes through the condenser. The rule of thumb is that you should use the minimum amount of light necessary to view the object. To much light can impair resolution

Answer 26

Iris diaphragm

Question 26

The light source is a built-in lamp. It serves as a steady light source used in place of a mirror.

Answer 26

illuminator

Question 27

Alters the current applied to the lamp to control the intensity of the light produced.

Answer 27

Rheostat or Light Intensity Knob

Question 28

Used to raise and lower the stage of the microscope. It is used to first bring the object into approximate focus starting first with the stage as close to the objective lens without touching. Then move the coarse adjustment so that the stage moves away from the lens until the object is in relative focus

Answer 28

Coarse adjustment knob

Question 29

This knob is used to focus the image into a sharp, critical focus after achieving relative focus with the coarse adjustment knob.

Answer 29

Fine adjustment knob

Question 30

According to him, the item being examined under the microscope is referred to as objects

Answer 30

Vistan-Bordador (2005)

Question 31

In context of general biology courses, this object is typically called a

Answer 31

Specimen

Question 32

The ability of the microscope to amplify an image

Answer 32

Magnification

Question 33

Magnification of ocular lens x magnification of objective lens used

Answer 33

Total magnification

Question 34

The capacity of the objective lens to gather light

Answer 34

Numerical aperture (NA)

Question 35

The capability of the microscope to discern details as discrete individuals.

Answer 35

Resolving power (R)

Question 36

Refers to the deepness that the microscope can focus at a time from the front of and behind the specimen that can be viewed in focus

Answer 36

Depth of focus

Question 37

Refers to the area that can be seen under the microscope

Answer 37

Field of view

Question 38

The space in between the specimen and the objective lens

Answer 38

Working distance

Question 39

TRUE OR FALSE Paper towels may be used to clean slides ONLY

Answer 39

TRUE

Question 40

The most common technique for observing non-living specimens, inorganic materials, or dead matter, such as oil, hair, particles, or insect legs.

Answer 40

Dry Mount

Question 41

TRUE OR FALSE Ensure that the specimen is paper-thin for optimal visibility. While dry mounts are simple and efficient, they may result in lower image quality due to the refractive index difference between the specimen and air.

Answer 41

True