mid term study

Question 1

In the pH experiment, which solution was the most acidic?

Answer 1

vinegar

Question 2

In the pH experiment, Which solution was the most basic?

Answer 2

ammonia

Question 3

Is milk an acid or base?

Answer 3

acid (pH:6)

Question 4

What was the pH of Urea?

Answer 4

7

Question 5

What was the pH of Sodium chloride(NaCl)?

Answer 5

7

Question 6

What was the pH of baking soda?

Answer 6

8

Question 7

In the pH experiment, what did a blue stain meant in the litmus paper?

Answer 7

basic solution

Question 8

In the pH experiment, what did a red stain meant in the litmus paper?

Answer 8

acidic solution

Question 9

What is the range in pH for an acid?

Answer 9

1-6

Question 10

What is the range in pH for a base?

Answer 10

8-14

Question 11

What organic acid is found in vinegar?

Answer 11

acetic acid

Question 12

What acid is found on limes?

Answer 12

citric acid

Question 13

What acid is found in soda?

Answer 13

phosphoric acid

Question 14

What is the pH of the duodenum?

Answer 14

7.7

Question 15

What is the pH of saliva?

Answer 15

7

Question 16

What is the pH of the stomach?

Answer 16

2.5

Question 17

What is the pH of human blood?

Answer 17

7.4

Question 18

What does the Benedict’s test check for?

Answer 18

reducing sugars

Question 19

During the Benedict test, how long is the test tube supposed to be boiling?

Answer 19

about 5 minutes

Question 20

What does Idione test for?

Answer 20

startch

Question 21

During the starch experiment, what color(s) did it turn when starch was present?

Answer 21

purple/black

Question 22

What was the biuret test for?

Answer 22

protein

Question 23

During the biuret test, what color(s) did represented that protein was present?

Answer 23

purple

Question 24

What did Sudan IV test for?

Answer 24

lipids

Question 25

During the Sudan IV test, what was the color that showed the presence of lipids?

Answer 25

red

Question 26

What protein is found in the dairy products?

Answer 26

casein

Question 27

What kind of macromolecule is found on fruits?

Answer 27

carbohydrates

Question 28

What is the glycemic index?

Answer 28

rating system of foods that contain carbohydrates

Question 29

What amoeba did we view in lab?

Answer 29

amoeba proteus

Question 30

What is the most deadly amoeba?

Answer 30

Naegleria fowleri (brain eating amoeba)

Question 31

What was the name of the paramecium that we view in class?

Answer 31

paramecium caudatum

Question 32

In what environment are amoebas found?

Answer 32

aqueous environment

Question 33

How do amoeba move around?

Answer 33

creation of pseudopodia (fake foot)

Question 34

What does euglena use to move?

Answer 34

flagella

Question 35

What is the cell wall of a plant cell made out of?

Answer 35

cellulose

Question 36

What is the cell wall of a bacteria made out of?

Answer 36

peptidoglycan

Question 37

What is the temperature for an ice bath?

Answer 37

4°C

Question 38

What is room temp?

Answer 38

23°C

Question 39

What is the warm water temperature?

Answer 39

55°C

Question 40

How does temp affect diffusion?

Answer 40

the hotter it is, the faster it will diffuse

Question 41

How does molecular weight affect the rate of diffusion?

Answer 41

The heavier molecule will diffuse slower than the lighter molecules

Question 42

How permeable was the dialysis tubing?

Answer 42

semi-permeable

Question 43

Is dialysis tubing permeable to albumin?

Answer 43

no

Question 44

Is dialysis tubing permeable to sugar?

Answer 44

yes

Question 45

Is dialysis tubing permeable to iodine?

Answer 45

yes

Question 46

Is dialysis tubing permeable to starch?

Answer 46

no

Question 47

during the dialysis tubing experiment, how long did it had to wait for the iodine to diffuse?

Answer 47

1 hour

Question 48

what was the name of the machine used to measure the light?

Answer 48

spectrophotometer

Question 49

A?

Answer 49

ocular lenses

Question 50

b?

Answer 50

revolving nosepiece

Question 51

c?

Answer 51

objective lenses

Question 52

d?

Answer 52

stage

Question 53

e?

Answer 53

condenser

Question 54

f?

Answer 54

light source

Question 55

g?

Answer 55

light knob

Question 56

h?

Answer 56

arm

Question 57

i?

Answer 57

coarse adjust knob

Question 58

j?

Answer 58

fine adjust knob