1.3 - Microscopes Flashcards Preview

Science 10 Unit C Biology Section 1 > 1.3 - Microscopes > Flashcards

Flashcards in 1.3 - Microscopes Deck (21)
Loading flashcards...
1

______ are instruments designed to produce ______ visual or photographic images of small objects

Microscopes
Magnified

2

The ______ must accomplish 3 tasks:

1. Produce a ______ image of the specimen
2. Separate the ______ in the image
3. Render the ______ ______ to the ______ or camera

Microscope
Magnified
Details
Details visible
Human eye

3

Microscopes increase ______ - the minimum distance two points can be apart and still be distinguished as two separate points

Resolution

4

A microscope has one or more ______ that make an enlarged image of an object

Lenses

5

______ microscopes are used to view objects and are illuminated by visible ______

Light x2

6

______ microscopes use only one ______ and are similar to a magnifying glass 🔍

Simple
Lens

7

______ microscopes use ______ or more lens placed one on top of the other. It commonly has one lens in the eyepiece and one in each OBJECTIVE lens. Can magnify as much as 2000X.

Compound
Two

8

______ microscopes give a ______ view of an object and are used for ______

Stereoscopic
3-D
Dissections

9

______ microscopes illuminate specimens with a beam of ______ instead of a beam of light. Can magnify us to 1.2 mln times

Electron
Electrons

10

Electron ______ are the photographs of the image produced by an ______ microscope

Micrographs
Electron

11

Electron microscopes can achieve ______ images

3-D

12

______ electron microscopes:

Specimens are ______ sliced then placed under a vacuum to remove moisture and particles. Electrons are then transmitted through the specimens to view ______ internal structures and details.

Transmission (TEM)
Thinly
2-D

13

______ electron microscopes use a beam of ______ that sweeps over an object to create a ______ image (only the surface can be detected)

Scanning (SEM)
Electrons
3-D

14

______ laser ______ microscopes have a ______ beam directed at numerous planes created a series of ______ images or "optical ______"

Computer software then "______" the images together

Confocal
Scanning (CLSM)
Laser
2-D
Slices
Stiches

15

When specimens are difficult to see due to their pale colour or transparency the specimen can be ______ and it will attach to different parts of the specimen.

*disadvantage: the specimen is killed in the process

Stained

16

Virus vs bacteria part 1

Virus ______ live on its own
Bacteria ______ live on its own

Can't
Can

17

Virus vs bacteria part 2

Virus is much ______ (size)
Bacteria is ______ (size)

Smaller
Larger

18

Virus vs bacteria part 3

Virus: ______ are beneficial
Bacteria: ______ be beneficial

None
Some can

*bacteria in the gut is beneficial

19

Virus vs bacteria part 4

Virus: have ______ cell membrane
Bacteria: have ______ cell membrane

No, by they do have a protein coat
An outer

20

Virus vs bacteria part 5

Virus: ______ be killed by antibiotics
Bacteria: ______ by antibiotics

Cannot
Are treated

21

Gene mapping is the process of mapping ______ sequences in genes

DNA