Fragebogen - Medstudiesbulgaria

01: Phages are parasitic viruses in:

a) plants

b) fungi

c) animals

d) bacteria

Correct! Wrong!

02: The highest arterial blood pressure is registered in:

a) pulmonary arteries

b) the aorta

c) the upper vena cava

d) the lower vena cava

Correct! Wrong!

03: Trypsin degrades:

a) fats to fatty acids and glycerol

b) carbohydrates to glucose

c) proteins to amino acids

d) proteins to nucleotides

Correct! Wrong!

04: The prostate is:

a) a muscle

b) a gland

c) producing oocytes

d) producing ATP

Correct! Wrong!

05: Vocal cords are located in the :

a) pharynx

b) trachea

c) bronchi

d) larynx

Correct! Wrong!

6. The systemic circulation starts from the:

а) right ventricle

b) left ventricle

c) left atrium

d) right atrium

Correct! Wrong!

7. Lipids are not entirely dissolved in:

а) alcohol

b) water

c) acetone

d) benzol

Correct! Wrong!

8. Polypeptide chains are:

а) linear and branched

b) circular

c) linear and unbranched

d) circular and unbranched

Correct! Wrong!

9. Nitrogen bases in DNA are:

а) adenine, guanine, cytosine, uracyl

b) adenine, thymine, guanine, uracyl

c) adenine, guanine, cytosine, thymine

d) guanine, cytosine, thymine, uracyl

Correct! Wrong!

10. The cell nucleus:

а) is the smallest organelle

b) contains DNA

c) contains ribosomes

d) is a nonmembraneous organelle

Correct! Wrong!

11. Albinism is a defect in the synthesis of:

а) hemoglobin

b) melanin

c) keratin

d) fibrin

Correct! Wrong!

12. Mammals excrete sperm cells only during the process of:

а) fertilization

b) erection

c) spermatogenesis

d) ejaculation

Correct! Wrong!

13. The oxidative degradation of organic substances is known as:

а) catabolism

b) metabolism

c) anabolism

d) reduction

Correct! Wrong!

14. Double membrane organelles are:

а) plastids

b) flagella

c) peroxisomes

d) mitotic spindles

Correct! Wrong!

15. Replication is the synthesis of:

а) glycogen

b) DNA

c) proteins

d) ribosomes

Correct! Wrong!

16. Kidneys are surrounded by:

a) connective tissue

b) adipose tissue

c) muscular tissue

d) epithelial tissue

Correct! Wrong!

17. Which nitrogen base is not found in DNA

a) guanine

b) thymine

c) uracil

d) cytosine

Correct! Wrong!

18. The midbrain is involved in:

a) vision and hearing

b) cardiovascular activity

c) sense of smell and taste

d) breathing

Correct! Wrong!

19. During exocytosis the cell:

a) releases cellular organelles

b) releases cellular secretions

c) absorbs cellular secretions

d) absorbs cellular organelles

Correct! Wrong!

20. The final urine does not contain:

a) water and salts

b) uric acid

c) urea and uric acid

d) amino acids and glucose

Correct! Wrong!

21. RNA is:

a) double stranded

b) found in the nucleus

c) found in mitochondria

d) single stranded

Correct! Wrong!

22. Which cells have the largest nucleus?

a) phagocytes

b) leukocytes

c) monocytes

d) erythrocytes

Correct! Wrong!

23. The peptide bond is:

a) covalent

b) hydrogen

c) ionic

d) van der Waals

Correct! Wrong!

9. Progesterone is secreted from the:

a) mature follicles

b) corpus luteum

c) pituitary gland

d) exocrine glands

Correct! Wrong!

25. Polar bodies are formed in the course of:

a) sporulation

b) spermatogenesis

c) oogenesis

d) implantation

Correct! Wrong!

26. Pepsin is produced by the:

a) pancreas

b) liver

c) adrenal gland

d) stomach mucosa

Correct! Wrong!

27. The vein, which enters the liver, is called:

a) liver vein

b) portal vein

c) inferior vena cava

d) upper vena cava

Correct! Wrong!

27. Duplication is:

a) an intrachromosomal aberration

b) an interchromosomal aberration

c) a type of polyploidy

d) a type of aneuploidy

Correct! Wrong!

29. The true organ of hearing is the:

a) stirrup

b) Eustachian tube

c) organ of Corti

d) cochlea

Correct! Wrong!

30. Glycogen is a reserve food material in:

a) prions

b) animal cells

c) plant cells

d) viruses

Correct! Wrong!

31. The eye lens is:

а) transparent and fluid

b) is double convex

c) is double concave

d) nontransparent and fluid

Correct! Wrong!

32. The red blood cells are called:

а) thrombocytes

b) erythrocytes

c) phagocytes

d) leukocytes

Correct! Wrong!

33. The epidermis is:

а) the outer skin layer

b) rich in glandular tissue

c) highly vascularized

d) is composed of dead cells only

Correct! Wrong!

34. The excretory organ is the:

a) nephron

b) malpighian body

c) pelvis

d) kidney

Correct! Wrong!

35. The myocardial contraction is known as:

а) systole

b) diastole

c) pause

d) pulse

Correct! Wrong!

36. Facial bones are the:

а) frontal bone

b) ribs

c) mandible

d) temporal bones

Correct! Wrong!

37. The triceps of the lower limb:

а) flexes the ankle

b) flexes the elbow

c) extends the elbow

d) extends the hip

Correct! Wrong!

38. The duodenum is the:

а) initial part of the large intestine

b) final part of the large intestine

c) final part of the small intestine

d) initial part of the small intestine

Correct! Wrong!

39. Ribosomes:

а) participate in protein synthesis

b) are single membrane organelles

c) participate in lipid synthesis

d) are double membrane organelles

Correct! Wrong!

40. All biochemical reactions taking place within a cell are known as:

а) catabolism

b) anabolism

c) metabolism

d) nanism

Correct! Wrong!

41. The chromatin is a:

а) complex of proteins

b) bacterial chromosome

c) complex of proteins and DNA

d) structure in prokaryotic cells

Correct! Wrong!

42. Meiosis is typical of:

а) liver cells

b) somatic cells

c) germ cells

d) blood cells

Correct! Wrong!

43. Glycolysis is the process of degradation of:

а) glycogen

b) glucose

c) cellulose

d) starch

Correct! Wrong!

44. The bonds between phosphate residues in the molecule of АТР are:

а) macroergic

b) phosphodiester

c) hydrogen

d) glycosylic

Correct! Wrong!

45. Transcription is a process of:

а) DNA synthesis

b) protein synthesis

c) cell division

d) RNA synthesis

Correct! Wrong!

46. The ear ossicles are located in the:

а) middle ear

b) external ear

c) inner ear

d) anterior ear

Correct! Wrong!

47. The ovaries produce:

а) testosterone

b) cortisone

c) progesterone

d) growth hormone

Correct! Wrong!

48. The upper epidermal layer consists of:

а) live nucleated cells

b) dead nucleated cells

c) live non nucleated cells

d) dead non nucleated cells

Correct! Wrong!

49. A person from blood group AB has:

а) A antigens

b) A and B antigens

c) B antigens

d) no antigens

Correct! Wrong!

50. The temporal bones are part of the:

а) rib cage

b) trunk

c) limbs

d) cranium

Correct! Wrong!

51. The sphincter is a:

а) muscle

b) bone

c) ligament

d) gland

Correct! Wrong!

52. Hormones are secreted in the:

a) blood

b) muscles

c) saliva

d) sweat

Correct! Wrong!

53. The floating ribs are:

а) pairs 8, 9 and 10

b) the first two pairs

c) pairs 7, 8 and 9

d) the last two pairs

Correct! Wrong!

54. Which events take place in prophase?

а) the nuclear volume decreases

b) the chromatin is coiled into chromosomes

c) chromosomes are situated in cell poles

d) chromosomes are paired

Correct! Wrong!

55. Translation is a process of:

а) DNA synthesis

b) RNA synthesis

c) protein synthesis

d) nucleotide synthesis

Correct! Wrong!

56. No nucleus is present in:

a) neutrophils

b) eosinophils

c) erythrocytes

d) leukocytes

Correct! Wrong!

57. Starch is a food reserve in the cells of:

а) plants

b) animals

c) bacteria

d) fungi

Correct! Wrong!

58. The intracellular digestion is performed by:

a) peroxisomes

b) plastids

c) mitochondria

d) lysosomes

Correct! Wrong!

59. The extracellular form of the virus is known as:

а) viroid

b) prion

c) virion

d) capsid

Correct! Wrong!

60. The passage of ions through the cell membrane is known as:

а) phagocytosis

b) pinocytosis

c) osmosis

d) endocytosis

Correct! Wrong!

61. The retina contains:

а) pigments

b) sclera

c) photoreceptors

d) hormones

Correct! Wrong!

62. The trachea is built up of:

а) smooth muscles

b) ring vessels

c) cartilage semirings

d) cartilage rings

Correct! Wrong!

63. Insulin is produced by the:

а) thyroid gland

b) suprarenal gland

c) liver

d) pancreas

Correct! Wrong!

64. The cardiac contraction is known as:

а) pulse

b) systole

c) diastole

d) pause

Correct! Wrong!

65. The parietal bones are part of the:

а) extremities

b) trunk

c) sternum

d) cranium

Correct! Wrong!

66. What is produced during replication?

а) DNA

b) tRNA

c) mRNA

d) protein

Correct! Wrong!

67. Phages are:

a) viruses

b) bacteria

c) prions

d) plants

Correct! Wrong!

68. Secretions are produced by:

а) smooth muscles

b) connective tissue

c) surface epithelium

d) glandular epithelium

Correct! Wrong!

69. The monomers of proteins are:

а) aminoacids

b) nucleotides

c) nitrogen bases

d) monosaccharides

Correct! Wrong!

70. The main function of the Golgi complex is:

а) protein synthesis

b) lipid synthesis

c) formation of lysosomes

d) formation of ribosomes

Correct! Wrong!

71. Globular proteins:

a) are soluble in water

b) result from primary structure

c) result from tertiary structure

d) are positively charged

Correct! Wrong!

72. Bacteria are:

а) organelles

b) prokaryotic cells

c) eukaryotic cells

d) circular chromosomes

Correct! Wrong!

73. A person with blood group A has on his erythrocytes:

a) antigens A and B

b) antigen B

c) no antigens

d) antigen A

Correct! Wrong!

74. Catabolic processes:

а) are reduction processes

b) are synthetic processes

c) release energy

d) produce carbohydrates

Correct! Wrong!

75. During metaphase chromosomes:

а) move to opposite poles of the cell

b) are decondensed

c) are aligned along the equator of the cell

d) are composed of one chromatid

Correct! Wrong!

76. The plasmid is:

а) infectious particle

b) cytoplasmic organelle

c) nuclear part

d) circular DNA molecule

Correct! Wrong!

77. The flow of genetic information runs in the following direction

а) DNA – RNA - Protein

b) RNA – Protein - DNA

c) Protein – RNA - DNA

d) RNA – DNA - Protein

Correct! Wrong!

78. At the end of the first meiotic division each chromosome consists of:

а) two chromatids

b) one DNA molecule

c) four chromatids

d) four DNA molecules

Correct! Wrong!

79. Urine production takes place in the:

а) urinary bladder

b) nephron

c) urether

d) urethra

Correct! Wrong!

80. Energy is provided in the cell by:

а) anabolic processes

b) catabolic processes

c) carboxylation

d) translation

Correct! Wrong!

81. Mineralcorticoid are produced in the:

а) cortex of the pituitary gland

b) medulla of the thymus

c) cortex of the pancreas

d) cortex of suprarenal glands

Correct! Wrong!

82. Ribosomes are found in:

а) smooth endoplasmic reticulum

b) endosomes

c) rough endoplasmic reticulum

d) exosomes

Correct! Wrong!

83. The zygote is:

а) diploid cell

b) haploid cell

c) formed in the uterus

d) formed in the vagina

Correct! Wrong!

84. Which function is not typical of proteins?

а) transport

b) protective

c) catalytic

d) coding

Correct! Wrong!

85. Amylase dissociates:

а) proteins to peptides

b) starch to glucose

c) proteins to amino acids

d) starch to amylose

Correct! Wrong!

86. Which statement is correct?

а) the substrate is attached to the whole enzyme

b) the substrate is not attached to the whole enzyme

c) enzymes are nonspecific catalysts

d) enzymatic activity can not be regulated

Correct! Wrong!

87. Which is the outermost layer of the heart?

а) myocardium

b) pericardium

c) epicardium

d) endocardium

Correct! Wrong!

88. A person with blood group type B has:

а) anti-B antibodies

b) B antigens

c) A and B antigens

d) no antibodies

Correct! Wrong!

89. Double membrane organelles are:

а) plastids

b) flagella

c) peroxisomes

d) mitotic spindles

Correct! Wrong!

90. The cell membrane is built up of:

а) lipids and carbohydrates

b) proteins and salts

c) proteins and carbohydrates

d) lipids and proteins

Correct! Wrong!

91. The tympanic cavity is connected to the throat via the Eustachian tube.

correct

wrong

Correct! Wrong!

92. Accommodation is a process of adaptation of the eye to color perception.

correct

wrong

Correct! Wrong!

93. The pancreas is a gland with both external and internal secretion.

correct

wrong

Correct! Wrong!

94. The epidermis is rich in blood vessels.

correct

wrong

Correct! Wrong!

95. The nephron participates in filtration, reabsorption and secretion.

correct

wrong

Correct! Wrong!

96. Amylase is a stomach enzyme that degrades proteins.

correct

wrong

Correct! Wrong!

97. The basic muscles participating in respiration are the intercostal muscles and the diaphragm.

correct

wrong

Correct! Wrong!

98. Blood transfusion could be performed with any blood type available.

correct

wrong

Correct! Wrong!

99. Phagocytosis is the transport of droplets inside the cell.

correct

wrong

Correct! Wrong!

100. Proteins are dissolved in alcohol to form colloidal solutions.

correct

wrong

Correct! Wrong!

101. Peroxisomes and ribosomes are DNA containing organelles.

correct

wrong

Correct! Wrong!

102. The nucleus is divided from the cytoplasm via a double membrane.

correct

wrong

Correct! Wrong!

103. The bile activates the enzyme amylase which breaks down carbohydrates.

correct

wrong

Correct! Wrong!

104. The second heart sound is systolic.

correct

wrong

Correct! Wrong!

105. The first cervical vertebra is called atlas and connects the spine to the skull.

correct

wrong

Correct! Wrong!

106. The sclera of the eyeball has a feeding function.

correct

wrong

Correct! Wrong!

107. The sclera of the eyeball has a feeding function.

correct

wrong

Correct! Wrong!

108. The sweat glands are situated within the muscular tissue.

correct

wrong

Correct! Wrong!

109. The epiphysis secretes the hormone melatonin.

correct

wrong

Correct! Wrong!

110. The ribs are flat bones.

correct

wrong

Correct! Wrong!

111. Amino acids are connected in polynucleotide chains.

correct

wrong

Correct! Wrong!

112. Translation takes place in ribosomes.

correct

wrong

Correct! Wrong!

113. Insulin is produced by the suprarenal glands.

correct

wrong

Correct! Wrong!

114. Insulin is produced by the suprarenal glands.

correct

wrong

Correct! Wrong!

115. The most characteristic feature of prokaryotic cells is the lack of nucleus.

correct

wrong

Correct! Wrong!

116. Amino acids recognize directly their corresponding codons on mRNA

correct

wrong

Correct! Wrong!

117. The human body is built by three basic tissue types.

correct

wrong

Correct! Wrong!

118. The viral capsid is a protein structure.

correct

wrong

Correct! Wrong!

119. Cell nucleus could function independently of the cytoplasm.

correct

wrong

Correct! Wrong!

120. The hypofunction of the pancreas results in diabetes mellitus.

correct

wrong

Correct! Wrong!

121. Prions are multicellular organisms causing mad cow disease.

correct

wrong

Correct! Wrong!

122. Proteins are produced in lysosomes.

correct

wrong

Correct! Wrong!

126. The pituitary gland is located in the cavity of the skull.

correct

wrong

Correct! Wrong!

127. The rib cage belongs to the bones of the trunk.

Please select 2 correct answers

correct

wrong

Correct! Wrong!

128. Melanin is produced by the kidney.

correct

wrong

Correct! Wrong!

126. The pupil is situated in the central part of the iris.

correct

wrong

Correct! Wrong!

127. Bones are the active part of the locomotive system.

Please select 2 correct answers

correct

wrong

Correct! Wrong!

128. Amino acids recognize their corresponding codons on mRNA via tRNAs.

correct

wrong

Correct! Wrong!

129. The bones of the trunk make up the vertebral column and the rib cage.

correct

wrong

Correct! Wrong!

130. The viral capsid is a lipid structure.

correct

wrong

Correct! Wrong!

131. Ribosomes are situated in the nucleus.

correct

wrong

Correct! Wrong!

132. The iris is situated behind the sclera and contains pigments.

correct

wrong

Correct! Wrong!

133. Anaerobic oxygenation produces a large amount of energy.

correct

wrong

Correct! Wrong!

134. The vestibular system is responsible for the body temperature.

correct

wrong

Correct! Wrong!

135. The central nervous system includes the spinal cord and the pituitary gland.

correct

wrong

Correct! Wrong!

136. The suprarenal glands are located in the cavity of the skull.

correct

wrong

Correct! Wrong!

137. The systemic circulation starts with the capillaries.

correct

wrong

Correct! Wrong!

138. The malpighian bodies are situated in the kidney.

correct

wrong

Correct! Wrong!

139. Muscles are the active part of the locomotive system

correct

wrong

Correct! Wrong!

140. Chromatin is composed of amino acids and chloroplasts.

correct

wrong

Correct! Wrong!

141. Adrenalin is produced by the suprarenal glands.

correct

wrong

Correct! Wrong!

142. The bacterial wall is a lipid structure.

correct

wrong

Correct! Wrong!

143. Mitochondria and plastids contain DNA.

correct

wrong

Correct! Wrong!

144. The sclera is a pigmented layer of the eye ball.

correct

wrong

Correct! Wrong!

145. The skeletal muscles have a body and a tendon.

correct

wrong

Correct! Wrong!

146. Proteins are produced as a result of transcription.

correct

wrong

Correct! Wrong!

147. The end products of the Krebs cycle are CO2, H2 and ATP.

correct

wrong

Correct! Wrong!

148. The gene is a portion of DNA responsible for the synthesis of either an RNA or a protein molecule.

correct

wrong

Correct! Wrong!

149. Hairs and nails are structures of the connective tissue.

correct

wrong

Correct! Wrong!

150. The interphase is characterized by coiling of chromatin fibers.

correct

wrong

Correct! Wrong!

151. tRNA transports ribosomes to the nucleus.

correct

wrong

Correct! Wrong!

152. Fibrinogen plays a major role in blood clotting.

correct

wrong

Correct! Wrong!

153. Lipids are dissolved in organic solutions.

correct

wrong

Correct! Wrong!

154. There are 14 pairs of ribs in the human body.

correct

wrong

Correct! Wrong!

155. Smooth muscle cells are oval in shape.

correct

wrong

Correct! Wrong!

156. The nephron is part of the digestive system.

correct

wrong

Correct! Wrong!

157. The acrosome contains enzymes facilitating fertilization.

correct

wrong

Correct! Wrong!

158.Bacteria are eukaryotic cells.

correct

wrong

Correct! Wrong!

159. Hairs and nails are connective tissue structures.

correct

wrong

Correct! Wrong!

160. Phagocytosis is the transport of particles outside the cell.

correct

wrong

Correct! Wrong!

161. Chromatin condensation starts in the prophase of cell division.

correct

wrong

Correct! Wrong!

162. Bones may be long, short and fat.

correct

wrong

Correct! Wrong!

163. The pleura covers the outer side of the lungs.

correct

wrong

Correct! Wrong!

01. The mass number and atomic number of the lithium atom are shown by the symbol 37Li. What is the correct symbol for the lithium ion in lithium chloride?

A) 2 6^Li–

B) 3 6^Li+

C) 3 7^Li+

D) 3 7^Li–

Correct! Wrong!

02. In period 3 of the periodic table the atom with the largest atomic radius is located in group:

A) 1

B) 3

C) 5

D) 7

Correct! Wrong!

03. Which molecule is a polar molecule?

A) N2

B) CH4

C) CO2

D) H2O

Correct! Wrong!

04. Which substance has a polar covalent bond between its atoms?

A) NaH

B) NaCl

C) F2

D) NH3

Correct! Wrong!

05. The reaction is reversible and endothermic. Which conditions will give the largest yield of nitrogen dioxide?

A) high temperature and high pressure

B) low temperature and low pressure

C) high temperature and low pressure

D) low temperature and high pressure

Dinitrogen tetroxide, N2O4, breaks down into nitrogen dioxide, NO2. N2O4(g) ⇌ 2NO2(g)

Show hint

Correct! Wrong!

06. All of the factors listed below increase the rate of reaction CH3COOH + CH3OH except:

A) increase in pressure

B) adding of catalyst

C) increase in temperature

D) increase in methanol concentration

Correct! Wrong!

07. Which of the following dilute solutions has the lowest pH?

A) 0.010 mol/L HCl

B) 0.010 mol/L NaOH

C) 0.010 mol/L CH3COOH

D) 0.010 mol/L NH4OH

Correct! Wrong!