Cattolica/Biocampus Test Simulator Flashcards
1
Q
In the heart, the circulatory system originates in
A
the right atrium
(DOUBLE CHECK)
2
Q
which of the following characteristics does NOT describe viruses?
A. They multiply in host cells
B. They have ribosomes like those of bacteria
C. They do not have a nucleus
D. They do not multiply by cell division
E. They have a single type of nucleic acid
A
B. They have ribosomes like those of bacteria
3
Q
Hereditary disease with a recessive allele. A couple wants to have children but both the man and woman have a brother with this disorder. What is the probability that their child will have it?
A
1/9
4
Q
The chromatid is
A. a cellular organelle
B. one of the two strands arising from the duplication of the chromosome
C. a cellular structure like the chloroplasts
D. the cell containing grains of pigment in connective tissue
E. the visible material in the cell’s nucleus during the interphase, which is coloured with basic colorants
A
B. one of the two strands arising from the duplication of the chromosome
5
Q
What is the oxidation number for oxygen in hydrogen peroxide?
A
-1
6
Q
Which of the following sets of three elements has got semi-metallic behavior?
A. F, As, Fe
B. C, F, Na
C. Si, Na, K
D. Ca, Al, B
E. Si, As, B
A
E. Si, As, B
7
Q
The period of the function f(x) = tg x is
A
pi
8
Q
If the sum of the internal angles of a polygon is equal to two full circles plus five straight angles minus 540, how many sides does the polygon have
A
Eight
9
Q
A wooden block with a mass of 2kg is placed on a rough horizontal surface. A horizontal force of 14 N applied to the block generates an acceleration of 3 m/s^2. How much friction force does the plane exert on the block?
A
8 N
10
Q
700 seats in a Parliament are divided among 10 political parties. No two parties has the same number of seats and each party has at least 20 seats. What is the largest number of seats that the fifth-largest party can have?
A
116
11
Q
Peter is 38, while Ulkrika says she is 36, but only if she counts 4 days out of 7. What’s the actual age difference between Peter and Ulrika?
A
25
12
Q
what is the formula for the sum of the internal angles of a polygon?
A
180(n-2) = sum of internal angles
13
Q
with 12 litres of oil you can fill a certain number of bottles with a capacity of 3/4 of a litre. How many litres of oil will you need to fill the same number of bottles , providing these have a capacity of 1.5 litres?
A
24
14
Q
Which of these elements is not part of the bacterial cell wall?
A. porin
B. deoxyribose
C. nucleic acid
D. peptidoglycan
E. teichoic acid
A
C. Nucleic acid
15
Q
A human cell with 22 autosomes and one Y chromosome is
A. a female’s somatic cell
B. a zygote
C. a sperm cell
D. a male’s somatic cell
E. none of the above
A
D. a male’s somatic cell
16
Q
What is the increasing order of the following structures?
Protein, bacterium, virus, atom
A
Atom, protein, virus, bacterium
17
Q
A solution is …
A
a homogenous mixture of two or more substances
18
Q
The name of the compound C20H42 is….
A
icosane
19
Q
The methane molecule is classified as…
A
CH4 - tetrahedral
20
Q
Which statement regarding alkaline earth metals is FALSE?
A. they form hydroxides
B. they all have the outer electron shell configuration 2s2
C. they form divalent cations
D. they form basic oxides
E. they have low electronegativity values
A
B
21
Q
In quantitative analysis of the reaction creating water from molecular hydrogen and oxygen, one obtains ____ moles of water from ____ moles of hydrogen and _____ of oxygen
A
2 ; 2 ; 1
22
Q
Complete the following letter sequence using the English alphabet: H; D; A; W; T
A. P
B. C
C. T
D. H
E. E
A
A. P
23
Q
600 seats in a Parliament are divided by 7 parties. No two parties have the same number of seats and each party has at least 20 seats. What is the smallest number of seats that the fourth-largest party can have?
A
23
24
Q
Determine the unique solution to the equation sin(2x) = 1 when x, measured in degrees, satisfies the following limit (-180 < x < 180)
A
45˚
25
When people talk about the Cambridge Analytica scandal, they mean...
the illegal use of data from more than 50 million American voters, whose psychology and behavior was profiled based on the monitoring of their activity on Facebook
26
In the set of Real Numbers, the equation x^3=4x has how many solutions
three distinct solutions
27
A 0.1 molar solution is prepared by dissolving 0.1 moles of solute into ...
1 liter of solution
28
Two parents who are not blood-related have both been deaf from birth. both have deaf brothers and sisters and healthy parents. if they had a deaf child, what would the probability be that the next pregnancy would be a healthy child?
practically none
29
Viruses are
A. obligate parasite submicroscopic particles
B. facultative parasites
C. commensal organisms
D. eukaryotic cells
A. obligate parasite submicroscopic particles
30
Today, what is the most accurate definition to indicate how Beadle and Tatum's 'one gene, one protein' hypothesis evolved
A. one gene, one hereditary feature
B. one gene, one polysaccharide chain
C. one gene, one polypeptide chain
D. one gene, one nucleobase
E. one gene, one phospholipid
C. one gene, one polypeptide chain
31
We can say that a chemical reaction is at equilibrium when ...
the concentration of the products and reactants is constant over time
32
The atoms that form a covalent bond
A. undergo ionisation
B. exchange electrons
C. share electrons but do not have overlapping orbitals
D. share electrons and have overlapping orbitals
E. have overlapping orbitals but do not share electrons
D.
33
If the projections of the legs onto the hypotenuse in a right triangle are 6 and 12 cm, then the triangle's area is equal to
54(root)2 cm^2
34
Under normal temperature and pressure conditions, which of the following substances is in a solid state?
A. oxygen
B. saccharose
C. olive oil
D. mercury
E. water
B. saccharose
35
The expression 2cos(135) - sin(150) + 4tg(225) - 3cos(660) is equal to
A. 4 - sqrt2
B. sqrt2 - 2
C. 1
D. 2 - (sqrt2)/2
E. 2 - sqrt2
E. 2 - sqrt2
36
Identify the chemical formula of the compound formed by the reaction between perchloric acid and magnesium hydroxide
A. MgClO4
B. Mg2ClO4
C. MgClO3
D. Mg(ClO4)2
E. Mg2(ClO4)3
D. Mg(ClO4)2
37
Two representative elements that have a different number of electrons, but on the same outermost energy level, are found in the periodic table:
A. in the same group but different periods
B. in different periods and different groups
C. in periods opposite each other
D. in the same period and same group
E. in the same period but different groups
E. in the same period but different groups
38
Considering 0.075 M aqueous solution of each of the following, which solution has the lowest pH?
A. NaNO3
B. LiCl
C. Mg(HCO3)2
D. NH4HSO4
E. CaCO3
D. NH4HSO4
39
Glycogen is:
A. synthesized during fasting
B. stored in mitochondria
C. mostly stored in blood
D. mostly contained in liver and skeletal muscles
E. a fructose polymer
D. mostly contained in liver and skeletal muscles
40
What is electronegativity?
A. The tendency to share binding electrons
B. None of the other answers are correct
C. The ability not to be affected by the electric field
D. The ability to be influenced by the electric field and the tendency to share and attract bonding electrons
E. the tendency of an atom to attract a bonding electron to itself
E. the tendency of an atom to attract a bonding electron to itself
41
What is the chemical formula of the compound formed by ammonium ions and bisulphite (or hydrogensulphite) ions?
A. NH3SO3
B. (NH4)2HSO3
C. NH4HSO3
D. NH4HSO4
E. NH4SH
C. NH4HSO3
42
What are "antigenic" determinants?
A. special regions present on the surface of an antigen that are recognized by antibodies
B. special regions of an antibody that recognize a certain antigen
C. none of the other answers is correct
D. what is left of an antigen after it is processed by a phagocyte
E. the different forms in which an antigen can present itself
A. special regions present on the surface of an antigen that are recognized by antibodies
43
which of the following hormones is produced in the pancreas?
A. antidiuretic hormone
B. adrenaline
C. oxytocin
D. testosterone
E. insulin
E. insulin
44
When a single allele controls more than one phenotype, that's a case of:
A. mutation
B. co-dominance
C. epistasis
D. polyallelia
E. pleiotropy
pleiotropy
45
Respiratory exchanges take place in the:
A. trachea
B. larynx
C. respiratory bronchioles
D. bronchi
E. pulmonary alveoli
E. pulmonary alveoli
46
After meiosis, the following are formed
A. 4 haploid cells identical in pairs because they have the same chromosomes
B. 4 diploid cells all genetically identical
C. 4 haploid cells all genetically identical
D. 4 haploid cells all genetically different from each other
E. 4 diploid cells all genetically different from each other
D. 4 haploid cells all genetically different from each other
47
The urethra
A. is a nitrogen waste product
B. joins the uterus and ovaries
C. is a segment of the female internal genitals
D. carries urine from the bladder to the outside
E. carries urine fro the kidneys to the bladder
D. carries urine from the bladder to the outside
48
The products of digestion are absorbed mainly
A. none of the other choices are correct
B. in the descending colon
C. in the small intestine
D. in the ascending colon
E. in the esophagus
C. in the small intestine
49
Blood reaches the left atrium immediately after passing through
A. the pulmonary veins
B. the aorta artery
C. the pulmonary arteries
D. the left ventricle
E. the right atrium
A. the pulmonary veins
50
Which of the following statements about gametogenesis is false?
A. the primary oocytes are diploid (2n)
B. In the male gonads, the spermatogonia (2n) differentiate into primary spermatocytes (n) in the first meiotic division
C. in the female gonads, after the first meiotic division a secondary oocyte and a polar globule form
D. female gametogenesis begins during embryo development
E. the spermatids are haploid cells that will mature into spermatozoa
51
Which of the following cell types is absent in the blood?
A. monocytes
B. erythrocytes
C. lymphocytes
D. all cell types present are in the blood
E. melanocytes
E. melanocytes
52
A cell can be said to be the target of a given hormone if:
A. It is located near the endocrine gland that secretes the hormone
B. belongs to the same tissue as the endocrine gland that produced the hormone
C. has receptors capable of recognizing and binding the hormone itself, giving rise to a functional response
D. has an external structure that is recognized by the hormone
E. has enzymes capable of metabolizing the hormone, transforming it into a specific signal
C. has receptors capable of recognizing and binding the hormone itself, giving rise to a functional response
53
Which of the following statements about RNA polymerase is correct?
A. Transcribes both exons and introns
B. It has a function in translation
C. It can produce many polypeptide chains at once through the formation of polyribosomes
D. produces only mRNA
E. creates covalent bonds between DNA nucleotides and complementary RNA nucleotides
A. Transcribes both exons and introns
54
A couple has 3 sons. What is the probability that the fourth child will be a son?
1/2
55
Plasmodesmata are:
A. organelles containing chlorophyll
B. channels that pass through the bacterial cell wall, connecting adjacent cells
C. the organelles in which chlorophyll photosynthesis take place
D. channels that pass through the wall of animal cells, connecting adjacent cells
E. channels that pass through the wall of plant cells, connecting adjacent cells
E. channels that pass through the wall of plant cells, connecting adjacent cells
56
Plants are capable of carbon fixation. This means that:
A. During the light phase of photosynthesis, carbon from carbon dioxide is incorporated into organic molecules
B. During the dark phase of photosynthesis, carbon from carbon dioxide is incorporated into inorganic molecules
C. During the dark phase of photosynthesis, carbon from glucose is incorporated into organic molecules
D. During the dark phase of photosynthesis, carbon from carbon dioxide is incorporated into organic molecules
E. During the light phase of photosynthesis, carbon from carbon dioxide is incorporated into inorganic molecules
D. During the dark phase of photosynthesis, carbon from carbon dioxide is incorporated into organic molecules
57
Which of the following statements regarding the major histocompatibility complex (MHC) is false?
A. Each MHC gene has some alleles
B. Two siblings usually possess the same alleles for all MHC genes
C. MHC allele analysis is very important to determine the compatibility between the donor and recipient of a transplant
D. Proteins encoded by MHC enable the immune system to recognize virus-infected cells
E. MHC allows the immune system to distinguish self from non-self cells
B. Two siblings usually possess the same alleles for all MHC genes
58
At the base of the Mediterranean diet food pyramid are:
A. milk and dairy products
B. carbohydrates, fruits, and vegetables
C. cured meats
D. meat and fish
E. eggs and legumes
B. carbohydrates, fruits, and vegetables
59
Which protein is present in the highest percentage in milk?
A. Casein
B. Gliadin
C. Albumin
D. Globulin
E. Gluten
A. Casein
60
What's the succession of something after going through the glomerulus in the nephron?
Bowman's capsule, proximal convoluted tubule, loop of Henle, and distal convoluted tubule
61
Which group contains only molecules with covalent bonds?
A. CO2, NH3, CH4
B. I2, H2S, NaI
C. NH4Cl, HBr, KI
D. C2H2, NO, NaCl
E. KBr, C2H6, HNO3
A. CO2, NH3, CH4
62
Which of the following pairs consists of particles having the same electronic configuration?
A. He ; Be+
B. Na+ ; Mg+
C. F - ; O 2-
D. F - ; N 2-
E. H+ ; He
C. F - ; O 2-
63
A glycerol molecule reacts with three fatty acid molecules:
A. forming a glycerol tripeptide
B. forming a triglyceride and releasing three water molecules
C. thanks to an esterification reaction, forming soaps
D. thanks to an esterification reaction, forming a phospholipid
E. forming a triglyceride and absorbing three water molecules
B. forming a triglyceride and releasing three water molecules
64
Which of the following elements belongs to the same group as oxygen?
A. K
B. N
C. P
D. Ba
E. S
E. S
65
Name the following compound: MgSO3
A. Manganese sulfite
B. Magnesium sulfite
C. Magnesium sulphate
D. Manganese sulphate
E. Manganese sulfide
B. Magnesium sulfite
66
NH3 , H2O, and PO4(3-)
A. are Lewis acids
B. are ionic substances
C. can act as bases
D. are able to donate protons to water molecules
E. have the same weight formula
C. can act as bases
67
The solubility of a substance in water:
A. depends on the temperature
B. is a constant
C. is identical in distilled water and tap water
D. does not depend on the polarity of the substance
E. does not depend on the temperature
A. depends on the temperature
68
Which of the following values is the pH of an aqueous solution of hydrochloric acid (HCl) with a molar concentration of 10^-10 closest to?
A. pH 11
B. pH 4
C. pH 9
D. pH 5
E. pH 7
E. pH 7
69
In the Cartesian plane the coordinate points A(1,2), B(4,3), C(5,6) and D(2,5) are the vertices of a:
A. square
B. isosceles trapezium
C. rhombus
D. scalene trapezius
E. rectangle
C. rhombus
70
A ballerina is rotating on her toes with her arms open and extended. If she closes her arms and brings them close to her torso, her angular velocity increases because:
A. reduces friction with the air
B. increases friction with the air
C. decreases the moment of inertia
D. move the center of gravity
E. increases the moment of inertia
C. decreases the moment of inertia
71
During a gymnastic exercise, a person performs 750 kJ of work on an exercise bike, also developing heat equal to 50 kJ. The change in the person's internal energy is
A. +800 kJ
B. 0 kJ
C. -700 kJ
D. +700 kJ
E. -800 kJ
E. -800 kJ
72
An exon is:
A. a set of six monosaccharides
B. a set of six amino acids
C. a set of six nucleotides
D. a DNA sequence that is transcribed and becomes part of an mRNA molecule
E. a DNA sequence that is transcribed, but not translated
D. a DNA sequence that is transcribed and becomes part of an mRNA molecule
73
What is the sinoatrial node?
A. A malformation of the mammary glands
B. A specialized portion of cardiac muscle tissue that maintains the heart's pumping rate by determining how often it contracts
C. a particular region located in the wall between the right atrium and left atrium that delays the impulse passing from the atrium to the ventricle
D. a malformation of the aortic valve
E. the curve that the pulmonary artery makes before entering the heart
B. A specialized portion of cardiac muscle tissue that maintains the heart's pumping rate by determining how often it contracts
74
The proteins present in the mitochondrion are encode by genes present in the localized DNA:
A. in the nucleus of the cell but which are translated exclusively in the mitochondrion
B. exclusively inside the mitochondrion
C. in the nucleus of the cell
D. partly inside the mitochondrion and partly in the nucleus of the cell
E. in ribosomes
D. partly inside the mitochondrion and partly in the nucleus of the cell
75
The primary lymphoid organs are:
A. lymph nodes, tonsils and adenoids
B. lymph nodes and spleen
C. thymus and bone marrow
D. thymus and mesenteric lymph nodes
E. bone marrow and Peyer's patches
C. thymus and bone marrow
76
Lactose is
A. a monosaccharide found in mammalian milk
B. a disaccharide consisting of galactose and glucose
C. the polysaccharide that cow's milk is very rich in
D. a hexose which, combined with glucose, gives rise to galactose
E. made up of two glucose molecules joined by a B 1-4 bond
B. a disaccharide consisting of galactose and glucose
77
All of the following enzymes are involved in DNA replication EXCEPT
A. synthetase
B. topoisomerase
C. DNA polymerase
D. helicase
E. primase
A. synthetase
78
Functionally, hemoglobin can be defined as a protein
A. enzymatic
B. transport
C. of defense
D. none are correct
E. reserve
B. transport
79
Which of the following statements about viruses is false?
A. They are incapable of autonomous protein synthesis
B. They are parasites of animal, plant, or bacterial organisms
C. They are obligate intracellular parasites
D. They can contain DNA or RNA
E. They have variable dimensions between 10um and 100 um
E. They have variable dimensions between 10um and 100 um
80
During muscle contraction
A. the sarcomere elongates
B. calcium released from the sarcoplasmic reticulum binds to actin
C. the myosin head binds to troponin
D. the myosin head is able to change its conformation thanks to the energy provided by the hydrolysis of ATP
E. adrenaline is released at the neuromuscular junction
D. the myosin head is able to change its conformation thanks to the energy provided by the hydrolysis of ATP
81
Which of the following characteristics suggests that a trait may be transmitted through the X-link?
A. no male-to-male transmission
B. presence of the character in all generations
C. generational leap
D. absence of female-to-female transmission
E. male to male transmission
A. no male-to-male transmission
82
Under constant pressure, at which of the following temperatures is the solubility of oxygen in water greatest?
A. 274 K
B. 0˚ C
C. 375 K
D. 25˚ C
E. 100˚ C
B. 0˚ C
83
What is the pH of a 1.0 x 10^-2 M aqueous solution of perchloric acid?
A. 2
B. 0 < pH < 1
C. > 2
D. about 1.5
E. about 2.5
A. 2
84
The following are involved in the formation of chemical bonds
A. the electrons
B. neutrons and electrons
C. protons
D. neutrons and protons
E. neutrons
A. the electrons
85
The semi-structural formula CH2 = CH2 is
A. propylene
B. cyclohexylene
C. isobutylene
D. cyclopentanophenanthrene
E. ethylene
E. ethylene
86
The first ionization energy of an atom
A. increases steadily along a group from top to bottom
B. is expressed in kg/mol
C. is always higher than the secondary ionization energy of the same atom
D. is the energy required to remove an electron from the atom when it is in the gaseous state
E. decreases over a period from left to right
D. is the energy required to remove an electron from the atom when it is in the gaseous state
87
To dilute a solution you need
A. first add solute and then solvent
B. add solute
C. none of them are correct
D. add solvent
E. a solution cannot be diluted in any way
D. add solvent
88
According to their constant Ka, arrange the following acids in decreasing order: hydrochloric acid (HCl), acetic acid (CH3COOH), and carbonic acid (H2CO3)
HCl > CH3COOH > H2CO3
89
Phosphorous belongs to period 3 and group 15. How many electrons must a phosphorous atom acquire to complete the octet?
A. Phosphorous never respects the octet rule in its compounds
B. 3
C. 4
D. 2
E. 5
B. 3
90
The gravitational acceleration on Mercury is about 1/3 of that on Earth. How much does 1kg of sugar weigh on Mercury?
A. 1 N
B. 3 kg
C. 3.3 N
D. 33 N
E. 1 kg
C. 3.3 N
91
In uniform rectilinear motion the velocity
A. increases in direct proportion to the square of the time
B. increases uniformly over time
C. is constant only in modulus
D. is constant both in modulus and in direction
E. it is initially zero
D. is constant both in modulus and in direction
92
How does the volume of two moles of ideal gas change if the temperature remains constant and the pressure doubles?
A. It halves
B. It is not possible to answer without knowing the composition of the gas
C. remains constant
D. double
E. quadruple
A. It halves
93
A satellite moves in its orbit around the Earth. The work that the gravitational force does on the satellite in one complete orbit is
A. null
B. directly proportional to the square of the distance
C. positive or negative depending on whether the orbit is right-handed or left-handed
D. negative
E. positive
A. null
94
Cos(0˚) is equal to
A. 1/2
B. 1
C. (sqrt 2)/2
D. (sqrt 3)/2
E. 0
1
95
Which of the following statements about hormones is true?
A. In normal condition, some hormones are not produced by the body but must be introduced by a pharmacological supplement
B. Hormones are the substances that central nervous system uses to communicate with the peripheral nervous system
C. hormones are nonspecific, as they can bind equally to all receptors in all cells in the body
D. Hormones are enzymes that activate the glands in the body
E. Hormones activate or deactivate enzymes in the cytoplasm of the target organ, or induce the production of new enzymes
E. Hormones activate or deactivate enzymes in the cytoplasm of the target organ, or induce the production of new enzymes
96
The white blood cells that directly kill cells infected with viruses are:
A. mast cells
B. eosinophilic granulocytes
C. Natural Killer lymphocytes
D. basophil granulocytes
E. neutrophil granulocytes
C. Natural Killer lymphocytes
97
The compound with a formula of Cu2SO4 is called
A. cuprous sulphide
B. cuprous sulphite
C. copper sulphate
D. copper sulphite
E. copper (II) sulphate
C. copper sulphate
98
Biliary salts
A. break down triglycerides into fatty acids and glycerol
B. digest proteins
C. facilitate lipid absorption
D. hydrolize glucids
E. none of the options are correct
C. facilitate lipid absorption
99
Which of the following statements about gametogenesis is false?
A. the primary oocytes are diploid (2n)
B. in the female gonads, after the first meiotic division a secondary oocyte and a polar globule form
C. In the male gonads, the spermatogonia (2n) differentiate into primary spermatocytes (n) in the first meiotic division
D. female gametogenesis begins during embryo development
E. the spermatids are haploid cells that will mature into spermatozoa
C. In the male gonads, the spermatogonia (2n) differentiate into primary spermatocytes (n) in the first meiotic division
100
The molecules responsible for the recognition of foreign products are:
A. albumins
B. cellular proteins
C. pheromones
D. antigens
E. immunoglobulins
E. immunoglobulins
101
Following DNA replication, during prophase I of meiosis, each chromosome is made up of:
A. a tetrad formed by the four homologous chromosomes
B. two pairs of centrioles
C. single chromatid
D. two identical chromatids joined at the centromere
E. two centromeres joined by the chromatid
D. two identical chromatids joined at the centromere
102
Leydig cells produce:
A. progesterone
B. oocytes
C. spermatozoa
D. testosterone
E. estrogens
D. testosterone
103
Which of the following substances is incompressible at a temperature of 283 K?
A. Nitrogen
B. Chlorine
C. Methane
D. Hydrogen sulfide
E. Bromine
E. Bromine
104
Two light bulbs are added to a circuit that includes a battery and a switch. How should the two light bulbs be connected to create a condition where one bulb is on and one is off?
A. in series
B. in series with the switch added between the two light bulbs
C. in parallel with the switch added to one of the two branches
D. the condition described can occur in any arrangement of the two light bulbs
E. the condition in which one light bulb is off and one cannot occur
C. in parallel with the switch added to one of the two branches
105
The transformation of ideal gases governed by the law p/T = constant is called:
A. isobaric
B. isentropic
C. isothermal
D. adiabatic
E. isochoric
E. isochoric
106
Which of the following substances has a triple covalent bond?
1. NH3
2. H2CO3
3. NO3-
4. CH4
5. F2
A. 3 and 5
B. 1 and 2
C. 5
D. 4
E. None
E. None
107
The diagonals of a rhombus are 6m and 8m. Find the length of the side of the rhombus.
A. 14 m
B. 10 m
C. 8/6 m
D. 4 m
E. 5 m
E. 5 m
108
Arrange the following bases in order of increasing force: a) CH3COO- b) NO3- c) NaOH
b < a < c
109
Which of the following statements about viruses is wrong?
A. Some viruses are called retroviruses
B. Viruses can have either a DNA or RNA genome
C. Viruses can replicate autonomously
D. Viruses possess a capsid consisting of proteins
E. Viruses are highly specific because they can only infect cells that have certain receptors on their surface
C. Viruses can replicate autonomously
110
Glycolysis
A. none of the answers are correct
B. leads to the formation of ATP
C. occurs in the nucleus of eukaryotic cells
D. does not occur in cells that perform photosynthesis
E. does not occur in eukaryotes
B. leads to the formation of ATP
111
If a protein is made up of 200 amino acids, the mRNA that encodes it is made up of:
A. just under 200 nucleotides
B. at least 600 triplets
C. at least 600 nucleotides
D. just under 600 nucleotides
E. just under 200 triplets
C. at least 600 nucleotides
112
The internal carotid artery, with its branches, vascularizes:
A. the face
B. the neck
C. the upper limb
D. the brain
E. the lower limb
D. the brain
113
A diploid cell with 10 pairs of chromosomes at meiosis produces the following:
A. 4 haploid cells with 10 chromosomes each
B. 4 haploid cells with 5 chromosomes each
C. 2 haploid cells with 5 chromosomes each
D. 2 haploid cells with 10 chromosomes each
E. 4 diploid cells with 10 chromosomes each
A. 4 haploid cells with 10 chromosomes each
114
A 10^-3 M solution of acetic acid has a pH:
A. less than 3
B. indeterminable
C. less than or equal to 3
D. greater than 3
E. equal to 3
D. greater than 3
115
Consider the reaction: 2HNO3 + 3H3AsO3 --> 2NO + 3H3AsO4 + H2O
Which of the following statements is FALSE?
A. In the reaction N is oxidized
B. In H3AsO4 the oxidation number of As is +5
C. The oxidation number of oxygen is -2
D. In the reaction H3AsO3 is the reducing agent
E. the reaction is a redox reaction
A. In the reaction N is oxidized
