Cells And Microscopes

Question 1

Cell theory

Answer 1

1. All living things are composed of one or more cells
2. the cell is the basic structural and functional unit of living matter
3. all cells come from pre-existing cells

Question 2

Level/hierarchy of structure

Answer 2

Cells ➡️ tissues ➡️ organs ➡️ systems ➡️ organisms

the simplest level is the cell and the most complex level is the organism

Question 3

Stage

Answer 3

Supports microscope slide and has central opening to allow light to pass through specimen on slide

Question 4

Clips

Answer 4

Hold the slide in position on the stage

Question 5

Revolving nose piece

Answer 5

Holds objective lenses and rotates allowing lenses to be changed

Question 6

Diaphragm

Answer 6

Controls the amount of light that reaches specimen

Question 7

Objective lenses

Answer 7

Magnify the object and have three possible magnifications

1. Low = 4X
2. Medium = 10X
3. High = 40X

Question 8

Course adjustment knob

Answer 8

Used with low-power object is only (for rough focus)

Question 9

Fine adjustment knob

Answer 9

Used with all objective lenses. For sharp focus

Question 10

Characteristics of living things (6)

Answer 10

1. Movement
2. growth and reproduction
3. metabolism and waste production
4. Response to stimuli
5. maintenance and repair
6. complexity