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Biochem (Lab) > Midterm Quizzes M1-M6 > Flashcards

Midterm Quizzes M1-M6 Flashcards

1
Q

which among common foods is not acidic in nature?

A

egg white / albumin

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2
Q

buffers are solutions that ___________ on the abrupt/sudden change for both acidity and alkalinity happened in the system?

A

resist

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3
Q

which is not an intracellular buffer in the human body fluids?

A

chlorates

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4
Q

These are the 2 intracellular buffers

A

sulfates and phosphates

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5
Q

Buffer that can react to calcium to form
highly insoluble kidney stone in the human body?

A

phosphates

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6
Q

not a kidney stone?

A

cholesterol

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7
Q

statement 1: as pH on the blood
decreases it will give on the central nervous system to get calcium from the bones.
Statement 2: the process in which this homeostasis will be OSTEOBLAST
(1st correct or 2nd correct stmnt) (both correct or wrong)

A

statement 1 is the only correct statement

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8
Q

statement 1: As temperature increases the pH increases
statement 2: As temperature decreases the pH decreases
(1st correct or 2nd correct stmnt) (both correct or wrong)

A

both statements incorrect

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9
Q

Which among values is the typical pH of gastric juice in stomach?

A

1

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10
Q

which among pH values does alkalosis in the blood happens?

A

7.45 - 7.55

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11
Q

which among pH values results to acidosis?

A

7.25 - 7.35

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12
Q

Which pH range is normal value in the
blood?

A

7.35 - 7.45

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13
Q

Which is the pH range in the blood results to fatality?

A

8.00 - 8.10

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14
Q

Unbuffered solution will have a resulting
pH after acid sample was added.

A

pH
will drastically become low

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15
Q

Buffered solution will have a resulting
pH after alkaline sample was added.

A

pH will increase slightly

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16
Q

Unbuffered solution will have a resulting
pH after alkaline sample was added.

A

pH will drastically increase

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17
Q

Buffered solution will have a resulting
pH after acid sample was added.

A

pH
will only decrease slightly

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18
Q

part of the cell that contains
chromosomes

A

nucleus

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19
Q

statement 1: prokaryotic cells has
presence of nucleus
statement 2: eukaryotic cells has presence of nucleus
(1st correct or 2nd correct stmnt) (both correct or wrong)

A

statement 2 is the only correct statement

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20
Q

the best example of prokaryotic cell?

A

virus

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21
Q

Part of the cell that controls what gets in and out.

A

cell membrane

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22
Q

Fluid portion of the cell

A

cytosol

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23
Q

part of the cell wherein ATPs were found

A

mitochondria

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24
Q

Part of the cell wherein protein synthesis
occurs.

A

ribosomes / rough Er

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25
Q

detoxifies the cell?

A

peroxisome

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26
Q

part of the cell wherein lipid synthesis occurs.

A

smooth ER

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27
Q

Which of the following cannot be found in the cell membrane?

A

enzymes

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28
Q

active transport happens in this part of the cell

A

cell membrane

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29
Q

a cylindrical shape protein structures wherein DNA was coiled

A

histones

30
Q

This channels to connect between 2 cells

A

plasmodesmata

31
Q

All are factors that differ plant cell to animal cell except;
A. animal cells have cilia or flagella
B. presence of plasmodesmata
C. size of vacuole is 90% for plant cell while lesser for animal cell
D. presence of endoplasmic reticulum for both animal and plant cell

A

D.

32
Q

statement 1: Anabolism utilizes energy for build of molecules
statement 2: Catabolism utilizes energy for breakdown of molecules
(1st correct or 2nd correct stmnt) (both correct or wrong)

A

both statements correct

33
Q

part of animal the cell that accepts oxygen but releases carbon dioxide

A

mitochondria

34
Q

part of the plant cell that accepts carbon dioxide but releases oxygen

A

chloroplast

35
Q

which of the following is an energy carrying substance?

A

ATP

36
Q

emulsifies fat in the liver

A

bile

37
Q

Biochemical process in which molecules
as it goes outside of a semi-permeable
membrane.

A

dialysis

38
Q

It is the movement of molecules from a
region of higher concentration to a region of lower concentration down the
concentration gradient

A

diffusion

39
Q

is the movement of molecules across a
cell membrane from a region of lower concentration to a region of higher concentration.

A

active transport

40
Q

Type of membrane transport that does not require energy to move substances across cell membranes.

A

passive transport

41
Q

This is the pass through of solute from a semi-permeable membrane

A

osmosis

42
Q

statement 1: metabolism is the chemical reaction in the body’s cells that change food into energy.
statement 2: metabolism only happens in stomach
(1st correct or 2nd correct stmnt) (both correct or wrong)

A

statement 1 is the only correct

43
Q

CuSO4 (copper (II) sulfate) is used as which reagent?

A

Fehling’s A

44
Q

NaOH (sodium hydroxide) is used as which reagent?

A

Fehling’s B

45
Q

statement 1: Ketose is a saccharide with functional group of ketone statement 2: Aldose is a saccharide with functional group of aldehyde

A

both statements correct

46
Q

General test for sugars

A

Molisch’s test

47
Q

___ test is use to determine a
saccharide for presence of starch

A

iodine

48
Q

For iodine test, the longer the time for
reaction of oil in this test the ____ its
unsaturation

A

higher

49
Q

not a test for reducing sugar?

A

Bial’s
Orcinol

50
Q

test identifies presence of galactose in a
sugar, lactose will also exhibit positive result of broom like image in the microscope as this disaccharide
contains galactose and glucose

A

mucic

51
Q

___ test differentiates a 6 carbon to 5
carbon monosaccharide.

A

bial’s orcinol

52
Q

__ test is quantitative test for unsaturation of fatty acids

A

iodine

53
Q

Composed of 2 glucose units yielding with high energy and hydrolyzable

A

maltose

53
Q

a monosaccharide of starch?

A

glucose

54
Q

used to determine for the presence of ketoses?

A

seliwanoff’s

55
Q

Triglyceride is composed of 3 fatty acids
and backbone of _____

A

glycerol

56
Q

statement 1: Oil is solid at room
temperature
statement 2: Fat is solid at room temperature

A

statement 2 is the only correct

57
Q

beta-carotene is a precursor of Vitamin___?

A

A

58
Q

this process for fats and oils is responsible for production of trans-fatty acids

A

hydrogenation

59
Q

soaps are ___ of fatty acids

A

salts

60
Q

this lipid is responsible for bilayer in the cell membrane

A

phospholipid

61
Q

they are storage of highest yield of
energy

A

lipids

62
Q

which element will lead to saponification
of fatty acids?

A

sodium

63
Q

which is the following edible oils is the
most suitable for soap making?

A

coconut oil

64
Q

linoleic acid contains ___ carbon double
bonds

A

2

65
Q

test for reducing sugars will result to
mirror image in the test tube?

A

tollen’s

66
Q

Using the Handerson-Hasslebalch Equation, what is the pH of the solution?

Ka= 0.0004
A- = 0.0001
HA = 0.0035

pH = pKa + log10 (A-/HA)

A

1.85

Solution:
pH = pKa + log10 (A-/HA) = -log(0.0004) + log (0.0001/0.0035)

67
Q

Using the Handerson-Hasslebalch Equation, what is the pH of the solution?

Ka= 0.0008
A- = 0.002
HA = 0.0045

pH = pKa + log10 (A-/HA)

A

2.75

Solution:
pH = pKa + log10 (A-/HA) = -log(0.0008) + log (0.0002/0.0045)

68
Q

Using the Handerson-Hasslebalch Equation, what is the pH of the solution?

Ka= 0.0007
A- = 0.001
HA = 0.0015

pH = pKa + log10 (A-/HA)

A

2.98

Solution:
pH = pKa + log10 (A-/HA) = -log(0.0007) + log (0.001/0.0015)

69
Q

Using the Handerson-Hasslebalch Equation, what is the pH of the solution?

Ka= 0.0009
A- = 0.0015
HA = 0.0015

pH = pKa + log10 (A-/HA)

A

3.05

Solution:
pH = pKa + log10 (A-/HA) = -log(0.0009) + log (0.0015/0.0015)

70
Q

Suicide bag of the cell

A

Lysosome

Biochem (Lab) (2 decks)

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