| Question | Answer |
| Which graph Illustrates the effect of enzyme
concentration on reaction VELOCITY. | TEMPERATURE |
| Which of the following GASTROINTESTINAL
enzyme is being described correctly? | Amylase breaks down complex
carbohydrates into simpler ones |
| What do you call the ENERGY difference
between the reactants and the products? | Free energy of activation |
| Complete the pair analogy
Proteolytic enzyme: Zymogen;??? | Pepsin: Pepsinogen |
| What type of enzyme catalyzes the reaction
of the CONVERSION of glucose into glucose – 6 –
phosphate? | Transferase |
| Enzymes are highly specific. To what
specificity does the catalysis of HYDROGEN PYROXIDE belong to? | Absolute |
| Which is the correct equation for the action
of catalase? | . H202 Catalase (ARROW POINTS RIGHT) H20 + O2 |
| Which of the following is a false statement? | is an Enzyme - Phosphate Complex. (E-PC ) |
| What PHYSICAL OBSERVATION accounts for the
action of catalase? | Formation of bubbles |
| The following pH levels can lead to DENATURE OF CATALASE except? | pH 7 |
| NIGHT BLINDNESS due to vitamin A deficiency | Nyctalopia |
| Otherwise Known as SUSHINE VITAMIN | Vitamin D |
| What is the function of VITAMIN K | Exhibit an antihemorrhagic activity
needed for proper blood clotting |
| Deficiency of this vitamin causing BURNING FOOT SYNDROME | Pantothenic acid |
| Deficiency of this VITAMIN C can cause | Scurvy |
| MAIN ABSORPTION site of all vitamins | Small Intestines |
| The following statements are considered as
FATSOLUBLE VITAMINS, EXCEPT | Functions as coenzymes |
| Which of the following states are
CONSIDERED water soluble vitamins? | Can be excreted easily |
| It is the deficiency of Vitamin D in ADULTS? | Osteomalacia |
| A type of anemia in which the BONE MARROW
produces unusually large, structurally ABNORMAL,
immature red blood cells. | Megaloblastic |
| The pyruvate is former in the cytosol after
glycose it then crosses two mitochondrial
membrane and enters which part of the
mitochondria where the OXIDATION OCCURS? | Matrix |
| This is a biochemical process by which
NADH is oxidized to NAD+ WITHOUT NEED FOR OXYGEN | Fermentation |
| This is a METABOLIC PATHWAY in which
glycogen is synthesized from glucose 6-
phosphate. | Glycogenesis |
| On the first step of glycogenesis, the
formation of the glucose 1-phosphate from
glucose 6-phosphate is catalyzed by an enzyme
called PHOSPHOGLUMUTASE The complete
conversion from 6-Phosphate to 1-Phosphate is
a process called _________. | Isomerization |
| During glycogenesis, in the formation of
UDP-glucose (uridine diphosphate glucose),
glucose 1-phosphate must be activated before it
can be added to GROWING CHAINS of glycogen. For
this to be possible, a high-energy activator must
be added. | Uridine triphosphate |
| In the oxidative stage of the PENTOSE
PHOSPHATE PATHWAY, how many NADPH
molecules are produced per molecule of
glucose 6-phosphate? | 2 |
| UREA is the FINAL PRODUCT of protein
metabolism. Uric acid is the final product of
purine oxidation in the body. | Only the first sentence is false. |
| Test for Bile Pigments is also called as the | Smith’s test |
| DIABETES insipidus is a condition whereby the
body cannot normally utilize sugar and
consequently a LARGE AMOUNT is excreted in the
urine. | Only the second sentence is false. |
| Test for Ketone Bodies is also called as the | Gunning’s test |
| a yellow color is formed. | Only the second sentence is false. |
| One molecule of glycerol is produced after
a complete hydrolysis of a triacylglycerol. The
glycerol then enters the BLOODSTREAM, travelling
to the liver or kidneys, and eventually converted
to which glycolysis intermediate? | Glucose-6-phosphate |
| It refers to the hydrolysis of
triacyclglycerols stored in the ADIPOSE TISSUE,
followed by release into the blood stream of the
fatty acids where glycerol is produced | Triacylglycerol mobilization |
| Hormone SENSITVE LIPASE needed for
triacylglycerol mobilization is activated by | cAMP |
| A lipoprotein that transports triacylglycerol
from intestinal cells, via the LYMPHATIC SYSTEM,
to the bloodstream. | Chylomicron |
| I. Glcerol-3-phosphate and Acyl-CoA are
required for the BIOSYNTHESIS of triacylglycerol. IV. The DEGRADTION of triacylglycerols
(lipolysis) is catalyzed by lipase | Both I and IV |
| In the oxidation of fatty acids, carnitine
molecule shuttles activated fatty acid molecules
across the | Inner mitochondrial membrane |
| Where does KETOGENISIS primarily occurs? | Liver |
| Which of the following describes the FIRST STEP of triacylglycerol mobilization? | Activation of fatty acid by forming a bond
with a coenzyme A |
| What CARBON is oxidized from the carboxyl
end of an acyl CoA molecule during B- oxidation? | B-carbon |
| What is the oxidizing agent in the first
DEHYDROGENATION step in B-oxidation? | FAD |
| Where are the UREA occurs | Liver |
| The process by which amino groups are
removed from amino acids to a KETO ACID | Transamination process |
| A person with PHENYLKETONURIA cannot
convert | Phenylalanine to tyrosine |
| Which of these directly DONATES a nitrogen
atom for the formation of urea during the urea
cycle? | Aspartate |
| The two fuels for the urea cycle are | Carbamoyl phosphate and aspartate |
| Name the type of cell in which synthesis of
the UREA CYCLE TAKES PLACE | Hepatocyte |
| Which of these is a HEREDITARY disease cause
due to an ERROR in amino acid metabolism? | Phenylketonuria |
| MAPLE SYRUP urine disease results from an
inborn error in the metabolism of these amino
acids | leucine isoleucine and valine (LIV) |
| GLUTAMATE s metabolically converted to a
ketoglutarate and NH4+ by a process described
as | Oxidative deamination |
| The life span of a red blood cell is about
4 MONTHS . Old red blood cells are broken
down in the SPLEEN, lungs, and liver. | Both statements are true |
| What color is produced if unsaturated fatty
acid is added with TINCTURE of iodine? | Clear or colorless |
| All are saponifiable lipids, except: | Cholesterol |
| This test yields a brick red precipitate with
the addition of BISMUTH subnitrate and
potassium iodide. Also, this is a test for Choline. | Kraut’s Test |
| One of the two sulfur- containing amino
acids has a nonpolar THIOETHER group in its side
chain | Methionine |
| AMINO ACIDS that CANNOT BE synthesized in
the organism are called | Essential amino acid |
| Which of the following are branched-chain
amino acids responsible for the characteristic
“sweet smell” of the urine in patients with
“MAPLE Syrup Urine Disease”? | LIV |
| Which of the FIBROUS PROTEIN is an
important structural component of arterial
blood vessels and ligaments? | Elastin |
| A SMALL PEPTIDE hormone that regulates
the excretion of water by the kidneys and also
affects blood pressure | Vasopressin |
| is a mixture of two proteins,
GLUTENIN and GLIADIN | Gluten |
| give ELASTICITY to DOUGH
helping it rise and keep its shape and often
gives the final product a CHEWY texture. | Gluten |
| is an immune reaction to
eating gluten, a protein found in WHEAT, BARLEY,
and RYE. | Celiac disease |
| is also caused by
trichomonads, a group of PARASTIC protozoans,
specifically Trichomonas VAGINALIS . | Leukorrhea |
| This alcohol concentration have greater
GERMICIDAL EFFECTS. | 70% strength |
| He discovered nucleic acids in 1869 while
studying the nuclei of white blood cells. | Friedrich Miescher |
| The following are correct descriptions for B
– DNA, EXCEPT FOR | Its helix turn goes left |
| The two strands of DNA are running in a
_________ position. | Antiparallel |
| The sugar involved in DNA | Deoxyribose |
| This is the base sequence for the start
codon | AUG |
| Start codon stands for what amino acids | Met |
| This enzyme causes UNWINDING of DNA
double-helix structure under replication | DNA helicase |
| This type of mutation is a change in ONE
DNA base pair that results in the substitution of
one amino acid for another in the protein made
by a gene | Missense mutation |
| Which of the following are PURINE bases? | Adenine and guanine |
| These are discontinuous stretches in which
the LAGGING STRAND is initially synthesized during
DNA replication. | Okazaki fragments |
| Missense is a change in amino acid
sequence specified by codon. Frame shift
mutation is the addition/deletion of nucleotide. | All statements are true |
| All are types of nitrogen bases except | Y |
| CENTRAL DOGMA is the proposed flow of
genetic information from RNA to DNA to
protein | False |
| Chromosomal mutation which involves
REINSERTION of a broken chromosomal segment
in reverse order. | Inversion |
| Pair of nitrogen bases : adenine is always
paired with cytosine and guanine is always
paired with thymine. | False |
| SERIES OF BIOCHEMICAL reactions in which
electrons and hydrogen ions from NADH and
FADH2 are passed to intermediate CARRIES and
then ultimately react with molecular oxygens to
produce water. | Electron Transport Chain |
| How many molecules of pyruvate produced
in glycolysis? | 2 |
| Citric acid cycle occurs in | Mitochondria |
| Biochemical process by which FOOD
molecules, through hydrolysis, are BROKEN DOWN
into simpler chemical units that can be used by
cells for their metabolic need | Digestion |
| PRIMARY ENERGY carriers in metabolic
pathways | ATP |
| Which of the following statements about
metabolism is CORRECT? | Metabolism is the sum total of all the
biochemical reactions that take place in a living
organism. |
| In which of the following LISTINGS OF CITRIC
acid cycle intermediates are the compounds
listed in the order in which they are
encountered in a turn of the cycle? | Isocitrate, succinyl, CoA, oxaloacetate |
| At which protein complex site in the
electron transport chain does proton pumping
occur? | Both I and III |
| The TOTAL ATP produced (new version of
1.5 or 2.5 equivalent) of the entire metabolic
reactions or 1 molecule of glucose | 32 |
| Odd man out. Choose the wrong pair here | Complex III: ATP Synthase complex |
| Which of the following statement describe
an ANABOLIC REACTION? | Glucose forming glycogen |
| Which of the following event represents an
ABSORPTIVE STATE? | Release of insulin initiating hepatic
absorption of glucose |
| Which of the following statement does
NOT represent the state of starvation? | None of the choices |
| The postabsorptive state relies on stores of
________ in the _________. | Glycogen; Liver |
| SALIVARY AMLYLASE, in breaking
polysaccharides like starch, is active at which
part of the digestive system | MOUTH |
| The primary site for carbohydrate
digestion is located in the small intestine. In this
phase of carbohydrate digestion, the enzyme aamylase AIDS digestion again. What organ does
the a-amylase enzyme come from? | Pancreas |
| In the FIRST STEP of the SIX-carbon stage of
glycolysis, phosphorylation of glucose occurs to
yield glucose 6-phosphate with the help of what
enzyme? | Hexokinase |
| In STEP 8 of glycolysis, during the
isomerization of 3-phosphoglycerate, the
phosphate group is moved from C3 to C2. What
enzyme catalyzes this process? | Phosphoglyceromutase |
| What is the end-product of glycolysis in
aerobic conditions? | Acetyl CoA |
| The branch of science that explores the
chemical processes within and related to living
organisms | Biochemistry |
| What is the Functional group? | Ester |
| Cilia and Filaments is present in both
animal and plant cell. | Only the 2nd statement is wrong |
| Organelle that is present and used for
PROTEIN SYNTHESIS | Ribosome |
| Building block of carbohydrates | Monosaccharide |
| Also known as galactose-1-phosphate.
Uridyl transferase deficiency | Galactosemia |
| _ are stereoisomers of cyclized
monosaccharides molecules differing only in the
configuration of the substituents on the
carbonyl carbon. | Anomers |
| A. Amylose is a long, unbranched polymer
with a-1, 4 bonds.
B. Amylopectin has both a-1, 4 and a-1, 6
bonds.
C. Starch consists of a greater proportion of
amylopectin than amylose. | All of the choices |
| The CELL MARKERS, which serve as basis for
the ABO blood types are classified as what type
of biopolymers? | Carbohydrates |
| Which of the following accurately
describes Barfoed’s test? | Test to differentiate monosaccharides and
disaccharides |
| Also known as Kowarsky Test | Osazone formation Test |
| This test is specific for pentoses and the
compounds containing PENTOSES and thus useful
for the determination of pentose sugars. | Bial’s Orcinol Test |
| Benedict’s reagent is composed of | Copper Sulfate Pentahydrate, Sodium
Carbonate and Sodium Citrate |
| The difference between Benedict’s and
Barfoed’s test reagent lies in the pH of the
solution used. Which of the following
statements is/are true? | Benedict’s test is maintained in basic
conditions and Barfoed’s test is MAINTAINED in
ACIDIC conditions |
| These are organic compounds found in
the living organism that is insoluble in water but
soluble in nonpolar solvents? | Lipids |
| All are functions of lipids except | They are essential in small amounts for the
PROPER functioning of human body |
| Saturated fatty acids are also known as
“bad fat”. While monounsaturated fats are
called “good fat” | Both statements are correct |
| Which of the following choices does not
have the right pairing? | Membrane Lipid: Eicosanoids |
| A disease characterized by accumulation
of galactocerebrosides with mental & motor
deterioration and BLINDNESS AND DEAFNESS | Krabbe disease |
| Saponification is the hydrolysis or oils
under basic conditions to afford glycerol and
the salt of the corresponding fatty acid. All are
formed or precipitated except for: | Sodium chloride |
| In acrolein test for lipids, what odor is
observed? | Pungent Odor |
