Midterm Quizzes M1-M6

Question 1

which among common foods is not acidic in nature?

Answer 1

egg white / albumin

Question 2

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

Answer 2

resist

Question 3

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

Answer 3

chlorates

Question 4

These are the 2 intracellular buffers

Answer 4

sulfates and phosphates

Question 5

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

Answer 5

phosphates

Question 6

not a kidney stone?

Answer 6

cholesterol

Question 7

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)

Answer 7

statement 1 is the only correct statement

Question 8

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)

Answer 8

both statements incorrect

Question 9

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

Answer 9

1

Question 10

which among pH values does alkalosis in the blood happens?

Answer 10

7.45 - 7.55

Question 11

which among pH values results to acidosis?

Answer 11

7.25 - 7.35

Question 12

Which pH range is normal value in the
blood?

Answer 12

7.35 - 7.45

Question 13

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

Answer 13

8.00 - 8.10

Question 14

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

Answer 14

pH
will drastically become low

Question 15

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

Answer 15

pH will increase slightly

Question 16

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

Answer 16

pH will drastically increase

Question 17

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

Answer 17

pH
will only decrease slightly

Question 18

part of the cell that contains
chromosomes

Answer 18

nucleus

Question 19

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)

Answer 19

statement 2 is the only correct statement

Question 20

the best example of prokaryotic cell?

Answer 20

virus

Question 21

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

Answer 21

cell membrane

Question 22

Fluid portion of the cell

Answer 22

cytosol

Question 23

part of the cell wherein ATPs were found

Answer 23

mitochondria

Question 24

Part of the cell wherein protein synthesis
occurs.

Answer 24

ribosomes / rough Er

Question 25

detoxifies the cell?

Answer 25

peroxisome

Question 26

part of the cell wherein lipid synthesis occurs.

Answer 26

smooth ER

Question 27

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

Answer 27

enzymes

Question 28

active transport happens in this part of the cell

Answer 28

cell membrane

Question 29

a cylindrical shape protein structures wherein DNA was coiled

Answer 29

histones

Question 30

This channels to connect between 2 cells

Answer 30

plasmodesmata

Question 31

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

Answer 31

D.

Question 32

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)

Answer 32

both statements correct

Question 33

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

Answer 33

mitochondria

Question 34

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

Answer 34

chloroplast

Question 35

which of the following is an energy carrying substance?

Answer 35

ATP

Question 36

emulsifies fat in the liver

Answer 36

bile

Question 37

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

Answer 37

dialysis

Question 38

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

Answer 38

diffusion

Question 39

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

Answer 39

active transport

Question 40

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

Answer 40

passive transport

Question 41

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

Answer 41

osmosis

Question 42

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)

Answer 42

statement 1 is the only correct

Question 43

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

Answer 43

Fehling's A

Question 44

NaOH (sodium hydroxide) is used as which reagent?

Answer 44

Fehling’s B

Question 45

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

Answer 45

both statements correct

Question 46

General test for sugars

Answer 46

Molisch’s test

Question 47

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

Answer 47

iodine

Question 48

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

Answer 48

higher

Question 49

not a test for reducing sugar?

Answer 49

Bial’s Orcinol

Question 50

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

Answer 50

mucic

Question 51

___ test differentiates a 6 carbon to 5 carbon monosaccharide.

Answer 51

bial’s orcinol

Question 52

__ test is quantitative test for unsaturation of fatty acids

Answer 52

iodine

Question 53

Composed of 2 glucose units yielding with high energy and hydrolyzable

Answer 53

maltose

Question 53

a monosaccharide of starch?

Answer 53

glucose

Question 54

used to determine for the presence of ketoses?

Answer 54

seliwanoff’s

Question 55

Triglyceride is composed of 3 fatty acids and backbone of _____

Answer 55

glycerol

Question 56

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

Answer 56

statement 2 is the only correct

Question 57

beta-carotene is a precursor of Vitamin___?

Answer 57

A

Question 58

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

Answer 58

hydrogenation

Question 59

soaps are ___ of fatty acids

Answer 59

salts

Question 60

this lipid is responsible for bilayer in the cell membrane

Answer 60

phospholipid

Question 61

they are storage of highest yield of energy

Answer 61

lipids

Question 62

which element will lead to saponification of fatty acids?

Answer 62

sodium

Question 63

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

Answer 63

coconut oil

Question 64

linoleic acid contains ___ carbon double bonds

Answer 64

2

Question 65

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

Answer 65

tollen’s

Question 66

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)

Answer 66

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

Question 67

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)

Answer 67

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

Question 68

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)

Answer 68

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

Question 69

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)

Answer 69

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

Question 70

Suicide bag of the cell

Answer 70

Lysosome