Lab Practical 1

Front 1

Benedict ' s reagent

Back 1

produces a color change for carbohydrates specifically aldehyde and ketone

Front 2

Lugol's solution

Back 2

Turns yellow/brown color in reaction to polysaccharides.

Front 3

Litmus blue

Back 3

used to detect pH change turns pink when pH becomes more acidic

Front 4

Biuret

Back 4

used to detect proteins color goes from light blue to purple

Front 5

Ninhydrin

Back 5

Turns purple in reaction with amino acids

Front 6

voltage regulator

Back 6

allows you to adjust the intensity of the light source

Front 7

condenser

Back 7

concentrates the light on a specimen

Front 8

iris diaphragm

Back 8

controls the amount of light and together with the condenser affects the sharpness of the image

Front 9

objective lenses

Back 9

magnify the image

Front 10

ocular lenses

Back 10

magnify the image

Front 11

revolving nosepiece

Back 11

allows you to change objective lenses

Front 12

diopter ring

Back 12

allows you th adjust the focus of the left ocular lense independently of the right lense

Front 13

stage

Back 13

holds the slide

Front 14

mechanical stage adjustment knobs

Back 14

moves the slide on the stage

Front 15

coarse focus knob

Back 15

makes large adjustments in focus

Front 16

Fine focus knob

Back 16

makes small adjustments in focus

Front 17

bacteria are responsible for...

Back 17

food spoilage, food poisoning, and many diseases in animals and plants like tuberculosis, scarlet fever, pneumonia, and diphtheria.

Front 18

cyanobacteria

Back 18

first chlorophyll bearing organism. responsible the association with polluted waters found in lakes or ponds.

Front 19

4 ways antibiotics inhibit or kill microorganisms

Back 19

1. inhibit cell wall formation
2.damage cell membrane
3. interfere with protein synthesis in the cell
4. inhibit nucleic acid metabolism

Front 20

bacteria identification ways

Back 20

1. Gram staining, cell shape, and colony shape

Front 21

4 types of animal tissue

Back 21

1. epithelial tissue
2. connective tissue
3. muscular tissue
4. nervous tissue

Front 22

amoeba

Back 22

Front 23

diffusion

Back 23

the net movement of molecules from an area of high concentration to an area of low concentration.

Front 24

osmosis

Back 24

the diffusion of water across a selectively - permeable membrane