2024-2025 NBCE - Part 1 Practice test with Answers (336 Solved Questions)

Name: 2024-2025 NBCE - Part 1 Practice test with Answers (336 Solved Questions)
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NBCE - Part 1 Practice Test –
100% GUARANTEED PASS
2024/2025
Where is not a location of stratified cuboidal epithelium?
a. layer o f ovaries
b. layer of testes
c. ducts of sweat glands
d. Gallbladder
gallbladder
Which is not true of stratified squamous epithelium?
a. can be wet
b. can be dry
c. is located in the mouth, cornea and esophagus
d. is located in the anal mucus membrane
is located in the anal mucus membrane
Which breaks down nucleic acids, carbohydrates, and proteins?
a. mitochondria
b. lysosomes
c. ribosomes
d. golgi bodies
B. lysosomes
__________________ neurons are the most common type in the human body?
a. unipolar

b. bipolar
c. multipolar
d. axillary
C. Multipolar
Mycetoma
a. tumor of the brain
b. tumor of the striated muscle
c. tumor of the smooth muscle
d. fungus ball tumor
d. Fungus Ball tumor
The is about 25 micrometers in length making it the longest.
a. stereocilia
b. ciliac.
c. flagella
d. microvilli
c. Flagella
The Islands of Langerhans are cells in the____ that____.
a. pancreas, regulate sugar metabolism
b. liver. make insulin
c. liver, regulate sugar metabolism
d. gallbladder, regulate sugar metabolism
a. pancreas, regulate sugar metabolism
Which is not a location of simple cuboidal epithelium?
a. Bowman's capsule of kidney
b. ducts of glands
c. surface of ovaries
d. thyroid

a. Bowman's capsule of kidney
A biceps curl would be an example of a(n) _ _ _ _ contraction.
a. eccentric
b. concentric
c. isometric
d. isotonic
b. concentric
Eccentric and concentric contractions are types of isotonic contractions. However,
choice (b.) is the most correct and specific answer.
Which muscle moves the mandible from side to side?
a. temporalis
b. masseter
c. medial pterygoid
d. lateral pterygoid
d. lateral pterygoid
The SCM is innervated by cranial nerve_ _ _
a. IV
b. VII
c. XI
d. IX
c. XI
Lambdoidal suture also known as the and the - - - - - suture is located between
the frontal and parietal bones.
a. coronal suture, coronal
b. occipital suture, coronal
c. squamous suture, sagittal
d. sagittal suture, occipital

b. occipital suture, coronal
The humeroulnar joint is characterized as a ______________type.
a. pivot
b. gliding
c. hinge
d. saddle
c. hinge
Costa is an anatomical term meaning
a. space
b. bone
c. rib
d. long
rib
the long thoracic nerve innervates the _________ muscle: damage to this nerve
will cause winging scapula
a. scapular notch
b. acromion
c. serratus anterior
d. rhomboid major
c. serratus anterior
Which is not found in the scapula?
a. scapular notch
b. acromion
c. coracoid process
d. conoid tubercle
d. conoid tubercle

which is not located on the clavicle?
a. costal tuberosity
b. conoid tubercle
c. coracoid process
d. sternal extremity
c. coracoid process
the olecranon can found in the __________________
a. radius
b. humerus
c. ulna
d. capitulum
c. ulna
The ulna does not have a(n)
a. coronoid process
b. olecranon
c. nutrient foramina
d. intertubercular sulcus
d. intertubercular sulcus
The scaphoid is found directly distal to the _ _ _ _ , which is wider near the
a. radius, wrist
b. radius, elbow
c. ulnar, wrist
d. ulnar, elbow
a. radius, wrist

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The main storage form of glucose in animals is
a. starch
b. glycogen
c. lipids
d. proteins.
b. glycogen
All of the following processes increase blood sugar levels except:
a. glycogenolysis
b. glycogenesis
c. gluconeogenesis
d. glucogenesis
b. glycogenesis
all of the following are considered low energy compounds except:
a. NADH
b. AMP
c. ADP
d. NADP
a. NADH
The breakdown of glycogen is called _ _ _ _ _.
a. glycogenolysis
b. glyconeogenesis
c. glycogenesis
d. glycolysis
a. glycogenolysis
Glucose plus fructose make which of the following disaccharides?
a. sucrose
b. lactose

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c. maltose
d. isomaltose
a. sucrose
The protein portion of an enzyme is called
a. apoprotein
b. holoenzyme
c. coenzyme A
d. cofactor
a. apoprotein
Without vitamin _ _ _ _ collagen will not form in the body.
a. Vitamin A
b. Vitamin B
c. Vitamin C
d. Vitamin D
c. Vitamin C
Which of the following is the most abundant plasma protein?
a. albumin
b. immunoglobulin
c. gamma globulin
d. T lymphocyte
a. albumin
Glucose-I-phosphate plus _ _ _ _ gives glucose-6-phosphate.
a. debranching enzyme
b. glycogen phosphorylase
c. phosphoglucomutase
d. pyruvate

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The coenzyme of pantothenic acid (BS) is
a.FAD
b. NADP
c. Coenzyme A
d. FMN
c. Coenzyme A
Beriberi is associated with a _ _ _ _ _ deficiency.
a. riboflavin
b. thiamine
c. niacin
d. pantothenic acid
b. thiamine
All of the following associated with a folic acid deficiency except:
a. cheilosis
b. megaloblastic anemia
c. tropical sprue
d. lack of conversion of serine to glycine
a. cheilosis
How many ATP are yielded in the aerobic form of glycolysis?
a. 36
b. 32
c. 24
d. 2
a. 36
Gluconeogenesis _ _ _ _ blood sugar; this process takes _ _ _ ATP.
a. lowers, 36
b. lowers, 4

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c. raises, 6
d. raises, 2
c. raises, 6
Which ofthe following lowers blood sugar levels?
a. insulin
b. cortisol
c. glucagon
d. flavin ring
a. insulin
Phosphorylation first occurs in step _ _ _ of glycolysis.
a. 1
b.4
c. 10
d. 8
a. 1
Which is the phosphate donor in steps 1 and 3?
A. NAD
B. ATP
C. DNA
D. RNA
B. ATP
Glucose 6-phosphate is converted to fructose 6-phosphate by use of the enzyme
in the process of_ _ _ _ _
a. phosphoglucoisomerase, oxidation
b. enolase, oxidation
c. phosphoglucoisomerase, glycolysis
d. enolase, glycolysis

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c. phosphoglucoisomerase, glycolysis
__________________ is the enzyme used in the last step of glycolysis.
a. enolase
b. pyruvate kinase
c. hexokinase
d. aldolase
b. pyruvate kinase
40. The aerobic form of glycolysis produces _ _ _ molecules of ATP and the
anaerobic form produces
a. 2, 2
b. 32,5
c. 6,24
d. 36,2
d. 36,2
A total of 4 ADP molecules in steps 7 and 10 of glycolysis are converted to 4 - - -
molecules.
a. cAMP
b. NADH
c. NAD
d. ATP
d. ATP
Two pyruvate molecules are formed in the process of glycolysis. What enzyme is
responsible for the 10th step of this process?
a. pyruvate kinase
b. phosphoglycerate kinase

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c. PFK-1
d. hexokinase
a. pyruvate kinase
n glycolysis, a _ _ _ _ carbon molecule of glucose is split into _ _ _ molecules of
pyruvic acid.
a. 5, 3
b. 10, 3
c. 3, 4
d. 6, 2
d. 6, 2
2-Phosphoglycerate is converted to phosphoenolpyruvate by the
_______________ help of the enzyme in this_______________ stage of glycolysis.
a. phosphoglycerate mutase, 5th
b. enolase, 9th
c. pyruvate kinase, 10th
d. enolase, 6th
b. enolase, 9th
The breakdown of glycogen is called _ _ _ _
a. glycogenolysis
b. glycolysis
c. oxidation
d. gluconeogenesis
a. glycogenolysis
Which ofthe following will lower blood sugar levels?
a. glycogenolysis
b. gluconeogenesis

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c. glycolysis
d. glucogenesis
c. glycolysis
Who discovered penicillin?
a. Salk
b. Sabin
c. Fleming
d. Semmelweis
c. Fleming
Subacute bacterial endocarditis is caused by which of the following organisms?
a. S. aureus
b. S.pyogenes
c. S. viridans
d. S. agalactiae
c. S. viridans
All of the following are true of endotoxins except:
a. are released by gram negative organisms
b. are released when the cell ceases to live
c. are composed of lipopolysaccharides
d. are released usually by gram positive organisms
d. are released usually by gram positive organisms
Which causes urinary tract infections in 17 year old girls?
a. S. epidermidis
b. S. saprophyticus
c. staphylococcus aureus
d. streptococcus viridans

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b. S. saprophyticus
Which causes dental caries?
a. S. epidermidis
b. S. saprophyticus
c. streptococcus mutans
d. staphylococcus aureus
c. streptococcus mutans
Nematodes are
a. tapeworms
b. roundworms
c. bacteria
d. protozoa
b. roundworms
Flukes are classified under
a. trematodes
b. tapeworms
c. cestodes
d. nematodes
a. trematodes
The coenzyme of pyridoxine is:
a. coenzyme A
b. pyridoxal phosphate
c. THF
d. TPP
pyridoxal phosphate (PLP)

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B9 is and its coenzymeis____
a. biotin, biotin
b. thiamin, thiamine pyrophosphate
c. niacin, NADP
d. folic acid, tetrahydrofolate
d. folic acid, tetrahydrofolate
Which vitamin can be made from tryptophan in the body?
a. thiamine
b. niacin
c. riboflavin
d. biotin
b. niacin
Which ofthe following is not an antioxidant?
a. selenium
b. copper
c. Vitamin A
d. Vitamin E
b. copper
all of the following are true regarding vitamin C in humans except:
a. It can be made from glucose.
b. Vitamin C aids in the absorption of iron.
c. Helps in the making of collagen
d. Vitamins C is involved with hydroxlation reactions.
a. It can be made from glucose.
Which vitamin B3 coenzyme is involved with fatty acid synthesis?
a. FMN
b. TPP

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c. FAD
d. NADP
d. NADP
The active coenzymes of riboflavin are ____ and _ _ _
a. FMN, FAD
b.NAD, NADP
c. TPP, FAD
d. Coenzyme A, NAD
a. FMN, FAD
Which of the following proteins does not have a branched chain?
a. valine
b. tryptophan
c. leucine
d. isoleucine
b. tryptophan
which is involved in decarboxylation reactions that is not the yellow vitamin?
a. biotin
b. thiamine
c. riboflavin
d. niacin
b. thiamine
The coenzyme of thiamine is
a.FAD
b.FM
c. coenzyme A
d. thiamine pyrophosphate

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d. thiamine pyrophosphate
Which vitamin contains the isoalloxazine ring system?
a. thiamine
b. niacin
c. vitamin C
d. riboflavin
d. riboflavin
pantothenic acid contains sulfur. Which other vitamin also contains sulfur?
a. thiamine
b. niacin
c. riboflavin
d. Vitamin C
a. thiamine
d. Vitamin C
66. Which of the following is not true of pyridoxine?
a. it is needed in protein metabolism
b. deficiency will cause convulsions in infants
c. pyridoxamine phosphate is its coenzyme
d. deficiency will cause pernicious anemia
d. deficiency will cause pernicious anemia
All of the following are essential amino acids except:
a. valine
b. phenylalanine
c. lysine
d. tyrosine
d. tyrosine

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All o f the following have branched chains except:
a. valine
b. phenylalanine
c. leucine
d. isoleucine
b. phenylalanine
Which is notc omposed of collagen?
a. hydroxylysine
b. hydroxyproline
c. omithine
d. glycine
c. omithine
70. Which is a non-essential amino acid?
a. valine
b. serine
c. arginine
d. histidine
b. serine
This vitamin helps in the formation of purines and when this vitamin is deficient it
will cause megaloblastic anemia?
a. pyridoxine
b. folic acid
c. pantothenic acid
d. thiamine
b. folic acid
Glucose and fructose will form
a. cellobiose

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b. isomaltose
c. sucrose
d. maltose
c. sucrose
The oxidation of glucose is referred to as _ _ _ _ _
a. glycolysis
b. glycogenesis
c. cellular respiration
d. glycogenolysis
c. cellular respiration
Which ofthe following is not an essential fatty acid?
a. arachidonic
b. linolenic
c. linoleic
d. phospholipid
d. phospholipid
Which makes up the majority of the plant starch we have in our diet? a. cellulose
b. amylose
c. amylopectin
d. glycogen
c. amylopectin
Amylopectin is in a
a. alpha 1-4 linkage
b. branched beta 1-4 linkage
c. beta 1-6 linkage
d. branched alpha 1-6 linkage

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d. branched alpha 1-6 linkage
Biotin in the vitamin and coenzyme form performs which kind of reaction?
a. carboxylation
b. hydroxylation
c. oxidation
d. decarboxylation
a. carboxylation
_______________________ is not a mucopolysaccharide?
a. cellobiose
b. heparin
c. hyaluronic acid
d. chondroitin sulfate
a. cellobiose
Insulin
a. will raise blood sugar levels
b. will lower blood sugar levels
c. is a steroid hormone
d. is made in the kidney
b. will lower blood sugar levels
The filum terminale.
a has pia mater only
b. has dura mater only
c. is considered leptomeninx
d. is the cauda equina
a has pia mater only

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The _ _ _ enlargement has the largest diameter of the spinal cord.
a. lumbar
b. sacral
c. thoracic
d. cervical
d. cervical
Pressure and light touch are functions of this ascending (sensory) tract?
a. spinotectal
b. medial lemniscus
c. anterior spinothalamic
d. fasciculus cuneatus
c. anterior spinothalamic
83. Which sense does not go through the thalamus?
a. sight
b. hearing
c. smell
d. taste
c. smell
84. What tract is responsible for 2 point discrimination?
a. lateral spinothalamic
b. fasciculus cuneatus
c. spinotectal
d. posterior spinocerebellar
b. fasciculus cuneatus
The Tectum is located in the
a. Pons
b. Midbrain

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c. Medulla
d. Small Intestine
Midbrain
All of the following are associated with an upper motor neuron lesion except:
a. spastic paralysis
b. increased muscle tone
c. no pathological reflexes
b. increased muscle tone
The _ _ _ tract helps to make muscles flex but does not aid in extensor
movements.
a. vestibulospinal
b. rubrospinal
c. tectospinal
d. anterior spinothalamic
b. rubrospinal
Frederick's ataxia is associated with damage to the
a. medial lemniscus
b. lateral spinothalamic
c. posterior spinocerebellar
d. spinotectal
c. posterior spinocerebellar
Pain and temperature is a function of the tract.
a. medial lemniscus
b. lateral spinothalamic tract
c. spinotectal
d. reticulospinal tract

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b. lateral spinothalamic tract
All of the following are effects of lower motor neuron lesions except:
a. flaccid paralysis
b. hyperreflexia
c. hyporeflexia
d. absent pathological reflexes
b. hyperreflexia
The parietal lobe is supplied directly by which vessel?
a. posterior cerebral artery
b. middle cerebral artery
c. carotid artery
d. anterior cerebral artery
d. anterior cerebral artery
Which is not part of the parasympathetic system?
a. cranial nerves 11 and 12
b. cranial nerves 3 and 7
c. sacral nerves S2-S4
d. cranial nerve 9 and I0
a. cranial nerves 11 and 12
Respiratory alkalosis can be caused by which ofthe following?
a. kidney failure
b. prolonged vomiting
c. oxygen deficiency
d. diabetes mellitus
The oculomotor nerve is cranial nerve _ _ _ and synapses at the _ _ _ ganglion.
a. 4, ciliary

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b. 7, otic
c. 3, ciliary
d. 2, otic
c. 3, ciliary
Cranial nerve _ _ _ _ synapses at the Otic ganglion.
a . 2
b. 5
c. 9
d. 10
c. 9
All of the following are ascending tracts except:
a. spinotectal
b. tectospinal
c. posterior spinocerebellar
d. medial lemniscus
b. tectospinal
Which ofthe following is involved with parasitic infections?
a. IgG
b. lgE
c. lgA
d.IgM
b. lgE
Which of the following is the heaviest antibody and the first one to appear in the
fetus?
a. IgA
b. IgE

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c. IgG
d. IgM
d. IgM
The most abundant antibody in a normal healthy adult is:
a. IgA
b. lgE
c. IgD
d. IgG
d. IgG
Antibodies received from an animal to a human would be labeled as which type of
immunity?
a. natural active
b. acquired active
c. acquired passive
d. natural passive
c. acquired passive
Antibodies passed from mother to infant would be which form of immunity?
a. acquired passive
b. acquired active
c. natural active
d. natural passive
d. natural passive
Which type of antibody is generally found in the mucous membranes of the
body?
a. IgE
b. IgM

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c. IgA
d. IgD
c. IgA
Which type of hypersensitive reaction 1s most likely involved with IgE
antibodies?
a. cell mediated
b. immune complex
c. cytotoxic
d. anaphylaxis
d. anaphylaxis
Which type of granulocyte fights parasitic infections?
a. neutrophil
b. basophil L
c. lymphocyte
d. eosinophil
d. eosinophil
The first step in municipal water treatment is:
a. chlorination
b. flocculation
c. filtration
d. flash mix
d. flash mix
The last step in municipal water treatment is:
a. flocculation

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2024-2025 NBCE - Part 1 Practice test with Answers (336 Solved Questions)

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