6/2013

Question Booklet

2013 Examination for Japanese University Admission

for International Students

Science（80min.）
【Physics, Chemistry, Biology】
※ Choose and answer two subjects.
※ Answer the questions using the front side of the answer sheet for one
subject, and the reverse side for the other subject.

Ⅰ Rules of Examination
 1．Do not leave the room without the proctor s permission.
 2．Do not take this question booklet out of the room.

Ⅱ Rules and Information Concerning the Question Booklet

 1．Do not open this question booklet until instructed.
 2．After instruction, write your name and examination registration number
in the space provided below, as printed on your examination voucher.
3. The pages of each subject are as in the following table.

Subject Pages
Physics 1−21
Chemistry 23−32
Biology 33−52
 4．If your question booklet is missing any pages, raise your hand.
 5．You may write notes and calculations in the question booklet.

Ⅲ Rules and Information Concerning the Answer Sheet

 1．You must mark your answers on the answer sheet with an HB pencil.
 2．Each question is identified by one of the row numbers ， ， , ….
Follow the instruction in the question and completely black out your answer
in the corresponding row of the answer sheet（mark‒sheet）.
 3．Make sure also to read the instructions on the answer sheet.

※ Once you are informed to start the examination, fill in your examination
registration number and name.

Examination registration number ＊ ＊

Name

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<Example>
解答科目 Subject
物 理 化 学 生 物
Physics Chemistry Biology

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Chemistry

Marking Your Choice of Subject on the Answer Sheet

Choose and answer two subjects from Physics, Chemistry,

and Biology. Use the front side of the answer sheet for one
㧨Example㧪
subject, and the reverse side for the other subject.
⸃╵⑼⋡ Subject
As shown in the example on the right, if you answer the
‛ ℂ ൻ ቇ ↢ ‛
Chemistry questions, circle “Chemistry” and completely fill Physics Chemistry Biology
in the oval under the subject name.
If you do not correctly fill in the appropriate oval,
your answers will not be graded.


Use the following values for calculation. “L” indicates liters.

Standard state: 0 ͠㧘1.0˜105 Pa (= 1.0 atm)

The molar volume of an ideal gas at the standard state: 22.4 L/mol

Gas constant: 5 = 8.31˜103 Pa㨯L/(K㨯mol)

Avogadro constant: 1A = 6.02˜1023 /mol

Faraday constant: ) = 9.65˜104 C/mol

Atomic weight: H : 1.0 C : 12 N : 14 O : 16 F : 19

Fe : 56 Br : 80

Q1  From the pairs of atoms and/or ions Ԙԝ choose the one that have the same electron

configuration. ᴾ ᵏᴾ


Ԙ Ar㧘Mg2㧗   ԙ F㧘Mg2㧗    Ԛ He㧘Na㧗  

ԛ K㧗 㧘S2㧙    Ԝ Li㧗 㧘F㧙    ԝ Na㧗㧘Cl㧙 

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Q2  From the following elements Ԙԝ choose the one that has the lowest electronegativity.
ᴾ ᵐᴾ

Ԙ C   ԙ F   Ԛ H   ԛ N   Ԝ Na   ԝ O

Q3  From the following substances ԘԜ choose the one that has the largest number of

hydrogen atoms in 10 g of it. ᴾ ᵑᴾ

Ԙ ammonia (NH3)     ԙ hydrogen fluoride (HF)   Ԛ methane (CH4)

ԛ methanol (CH3OH)   Ԝ water (H2O)

Q4  Two of the following substances (a)-(e) are nonpolar. From ԘԞ below choose the

combination of them. ᴾ ᵒᴾ

(a) carbon dioxide   (b) carbon monoxide   (c) methanol  

(d) oxygen      (e) water  

 

Ԙ a㧘b   ԙ a㧘d   Ԛ b㧘c   ԛ b㧘e   

Ԝ c㧘d   ԝ c㧘e   Ԟ d㧘e   

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Q5  From Ԙԝ below choose the closest figure for the number of iron (Fe) atoms which

are contained in an iron cube with each side having a length of 1.0 cm. Assume that the

density of iron is 7.9 g/cm 3 . ᴾ ᵓᴾ

Ԙ 4.2 ˜ 1022   ԙ 4.2 ˜ 1023   Ԛ 4.2 ˜ 1024  

ԛ 8.5 ˜ 1022   Ԝ 8.5 ˜ 1023   ԝ 8.5 ˜ 1024

Q6  In the figure shown below, an apparatus with a stopcock C connects a glass container A

with a volume of 0.500 L to another glass container B with a volume of 1.50 L. Containers

A and B contain nitrogen (N2), at 1.00 atm in A and 2.00 atm in B, when all stopcocks are

closed. After the stopcock C is opened, what will the pressure in atm be in the container at

the same temperature? From ԘԜ choose the closest value.        ᴾ ᾅᴾ atm

ኈེ A A
container ኈེ B B
container

stopcock C

Ԙ 1.00   ԙ 1.25   Ԛ 1.50   ԛ 1.75   Ԝ 2.00 

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Q7  The heats of formation of acetylene (ethyne) (C2H2), ethylene (ethene) (C2H4), and ethane

(C2H6) are given by the following thermochemical equations, respectively.

2C (graphite) 㧗 H2 (g) 㧩 C2H2 (g) 㧙 228 kJ

2C (graphite) 㧗 2H2 (g) 㧩 C2H4 (g) 㧙 52 kJ

2C (graphite) 㧗 3H2 (g) 㧩 C2H6 (g) 㧗 84 kJ

Calculate the amount of heat released in kJ when 0.500 mol of ethylene (ethene) and 0.500 mol

of ethane are obtained by hydrogenation of 1.00 mol of acetylene (ethyne). From the following

Ԙԝ choose the closest value.                       ᴾ ᵕᴾ kJ

Ԙ 88   ԙ 156   Ԛ 176   ԛ 244   Ԝ 312   ԝ 488

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Q8  Reactions in column A of the following table are in equilibrium states. When the conditions

are changed as indicated in column B, will each equilibrium shift to the left or to the right?

From the following ԘԜ choose the incorrect one from column C that indicates the direction

of the shift. ᴾ ᵖᴾ

A B C

Ԙ CH3COOH    CH3COO㧙 㧗 H㧗 to increase pH right

ԙ NH3 㧗 H2O    NH4㧗 㧗 OH㧙 to add water left

Ԛ NH3 㧗 H2O    NH4㧗 㧗 OH㧙㩷 to add NaOH left

ԛ N2 㧗 3H2    2NH3 to raise the pressure right

Ԝ H㧗 㧗 OH㧙    H2O to heat left

Q9  Dilute sulfuric acid (dil. H 2 SO 4 ) was electrolyzed with the aid of platinum electrodes.

Suppose 19300 C of electricity was applied. Calculate the sum of the amount of gases in mol

generated from the anode and the cathode. From Ԙԝ below choose the closest value.
                                       ᴾᵗᴾ mol

Ԙ 0.050   ԙ 0.10   Ԛ 0.15   ԛ 0.20   Ԝ 0.25   ԝ 0.30

Q10 Suppose 10.1 mL of 0.200 mol/L aqueous sodium hydroxide (NaOH (DT)) is added to

10.0 mL of 0.200 mol/L hydrochloric acid (HCl (DT)). From the following Ԙԝ choose

the closest figure for the pH of the resultant aqueous solution. ᴾ ᵏᵎ ᴾ ᴾ

Ԙ 8   ԙ 9   Ԛ 10   ԛ 11   Ԝ 12   ԝ 13

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Q11 From the reactions Ԙԝ below choose the one that is an oxidation-reduction reaction.
ᴾ ᵏᵏ ᴾ ᴾ

Ԙ BaCO3 㧗 2HCl    BaCl2 㧗 H2O 㧗 CO2

ԙ CuSO4 㧗 5H2O    CuSO4㨯5H2O

Ԛ HCl 㧗 NaOH    NaCl 㧗 H2O

ԛ 2K2CrO4 㧗 H2SO4    K2Cr2O7 㧗 K2SO4 㧗 H2O

Ԝ MnO2 㧗 4HCl    MnCl2 㧗 2H2O 㧗 Cl2

ԝ SO3 㧗 H2O    H2SO4

Q12 From the following statements ԘԜ with regard to the gases CO 2 , H 2 , HCl, He, and

NH3, choose the one that is not correct. ᴾ ᵏᵐ ᴾ ᴾ

Ԙ All the gases are colorless.

ԙ CO2 is soluble in water to form a weak acid.

Ԛ HCl is soluble in water to form a strong acid.

ԛ NH3 is soluble in water to form a strong base.

Ԝ Among these gases, the reactivity of He is the lowest.

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Q13 From Ԙԝ in the table below choose the correct combination of “true” or “false”

judgments for the following statements (a)-(e) on sodium chloride (NaCl). ᴾ ᵏᵑ ᴾ ᴾ

(a) In its crystal, sodium ion (Na+) and chloride ion (Cl㧙 ) are alternately and regularly

arranged.

(b) Sodium (Na) and chlorine (Cl) belong to different periods in the periodic table.

(c) Sodium and chlorine atoms are bonded by covalent bonds.

(d) When a platinum wire is dipped in its aqueous solution and is then placed in a flame,

the flame turns yellow.

(e) The solid does not exhibit an electric conduction property, but its aqueous solution

does.

㩷㩷 a b c d e

Ԙ true true true true false

ԙ true false true true true

Ԛ true false false true true

ԛ false true false true true

Ԝ false true true false false

ԝ false false false true true

Q14 There is an aqueous solution that contains one kind of cation. Suppose the aqueous solution

is taken in two test tubes. From ԘԜ below choose the most appropriate one which forms

precipitates of its hydroxide in both test tubes when aqueous ammonia (NH3 (DT)) is added to

one test tube and aqueous sodium hydroxide (NaOH (DT)) to the other, both in excess. ᴾ ᵏᵒ ᴾ ᴾ

Ԙ Ag㧗    ԙ Al3㧗    Ԛ Cu2㧗    ԛ Fe3㧗    Ԝ K㧗 

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1
Q15 Suppose the concentration of vinegar is to be diluted precisely to  with the aid of a
10
volumetric flask and an apparatus A, pipet or buret, which is wet as it has been washed

with distilled water. From the combinations Ԙ-ԝ below choose the most appropriate one

that contains the name of apparatus A used and the method of using it. ᴾ ᵏᵓ ᴾ ᴾ









 volumetric flask pipet buret


  Apparatus A used Method of using 

Ԙ pipet to use as it is

ԙ pipet to use after heating and drying

to use after rinsing several times with the
Ԛ pipet
vinegar to be diluted

ԛ buret to use as it is

Ԝ buret to use after heating and drying

to use after rinsing several times with the
ԝ buret
vinegar to be diluted

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Q16 From the following Ԙ-ԝ choose the one that is correct for the number of structural

isomers with the molecular formula C 3H6BrCl. ᴾ ᵏᵔ ᴾ ᴾ

Ԙ 1   ԙ 2   Ԛ 3   ԛ 4   Ԝ 5   ԝ 6

Q17 Two of the following statements (a)-(e) with regard to reactions involving alcohols are

not correct. From pairs Ԙ-ԝ below choose the combination of them. ᴾ ᵏᵕ ᴾ ᴾ

(a) Ethanol reacts with sodium (Na) to form ethylene (ethene).

(b) If acetaldehyde is reduced, methanol is formed.

(c) If methyl salicylate is hydrolyzed, salicylic acid and methanol are formed.

(d) If ethylene (ethene) is reacted with water vapor in the presence of a catalyst, ethanol

is formed.

(e) If carbon monoxide (CO) and hydrogen (H 2) are reacted in the presence of a catalyst,

methanol is formed.

Ԙ a㧘b   ԙ a㧘d   Ԛ b㧘c   ԛ b㧘e   Ԝ c㧘d   ԝ d㧘e

Q18 When 21 g of an unsaturated hydrocarbon, with a mass ratio of carbon C to hydrogen H

= 6 : 1, was reacted with bromine Br2, 61 g of the product was obtained. From Ԙ-ԟ

below choose the correct molecular formula for the unsaturated hydrocarbon. ᴾ ᵏᵖ ᴾ ᴾ

Ԙ C4H6   ԙ C4H8   Ԛ C5H8   ԛ C5H10  

Ԝ C6H10   ԝ C6H12   Ԟ C7H12   ԟ C7H14 

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Q19 In industry, phenol and acetone (2-propanone) are synthesized from benzene and

propylene (propene) by the cumene process. How many kg of phenol and acetone

(2-propanone) are synthesized, respectively, from 39 kg of benzene? From Ԙԝ below

choose the most appropriate combination. ᴾ ᵏᵗ ᴾ ᴾ

Phenol (kg) Acetone (2-propanone) (kg)

Ԙ 29 58

ԙ 47 29

Ԛ 94 47

ԛ 29 29

Ԝ 47 58

ԝ 94 29

Q20 Among the following compounds (a)-(f), two are classified as phenols. From Ԙԝ

below choose the combination of them. ᴾ ᵐᵎ ᴾ ᴾ

.

(a) aniline     (b) benzyl alcohol   (c) cresol  

(d) phthalic acid   (e) salicylic acid   ( f ) toluene

Ԙ a㧘b   ԙ a㧘d   Ԛ b㧘c   ԛ c㧘e   Ԝ d㧘f   ԝ e㧘f

End of Chemistry questions. Leave the answer spaces ᾁᾀ 㨪 ᾆᾄᴾ blank.

Please check once more that you have properly marked the name of your subject

as “Chemistry” on your answer sheet.


㪛㫆㩷㫅㫆㫋㩷㫋㪸㫂㪼㩷㫋㪿㫀㫊㩷㫈㫌㪼㫊㫋㫀㫆㫅㩷㪹㫆㫆㫂㫃㪼㫋㩷㫆㫌㫋㩷㫆㪽㩷㫋㪿㪼㩷㫉㫆㫆㫄㪅㩷

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Biology

Marking Your Choice of Subject on the Answer Sheet

 Choose and answer two subjects from Physics, Chemistry,

and Biology. Use the front side of the answer sheet for one 㧨Example㧪
subject, and the reverse side for the other subject. ⸃╵⑼⋡ Subject
As shown in the example on the right, if you answer the ‛ ℂ ൻ ቇ ↢ ‛
Physics Chemistry Biology
Biology questions, circle “Biology” and completely fill in the
oval under the subject name.
,I \RX GR QRW FRUUHFWO\ ILOO LQ WKH DSSURSULDWH RYDO
\RXUDQVZHUVZLOOQRWEHJUDGHG

Q1 The figure below schematically represents the antigen-antibody reaction observed between a certain

type of antigen and a certain type of antibody. A and B in the figure represent either an antigen or an

antibody. From Ԙ–ԝ below choose the combination indicating the two statements in (a)–(e) below

that correctly describe this reaction. 

A
Antigen-antibody complex

(a) The variable region of A binds specifically with B.

(b) The constant region of A binds specifically with B.

(c) A is involved in cell-mediated immunity.

(d) A has a structure in which one H chain is bound to two L chains.

(e) One type of A is produced from a single antibody-forming cell.

Ԙ a, c ԙ a, d Ԛ a, e ԛ b, c Ԝ b, d ԝ b, e

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Q2 The figure below shows, for a growing corn leaf, the relationships between the distance from the leaf

base and: (1) cell elongation rate, (2) cell length, and (3) the number of cells undergoing cell division.

From Ԙ–ԝ on the following page choose the combination that correctly indicates which of A–C in

the figure is the region where cell elongation is vigorous, the region where somatic cell division is

vigorous, and the region where elongation ends. 

Corn leaf
AB C

Base Tip
Cell elongation rate

0.12
0.10
0.08
0.06
0.04
0.02
0.00
120
Cell length (—m)

100
80
60
40
20
undergoing cell division

4
Number of cells

(relative value)

3
2
1
0
0 20 40 60 80 100
Distance from leaf base (mm)

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Region where Region where Region where


cell elongation is vigorous somatic cell division is vigorous elongation ends
Ԙ A B C

ԙ A C B

Ԛ B A C

ԛ B C A

Ԝ C A B

ԝ C B A

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Q3 Answer questions (1) and (2) below concerning reproduction.

(1) Reproduction is largely divided into two methods. The following table lists general characteristics
of these two methods (A, B).

A B

Genetic makeup of offspring Different from parents Same as parents

Genetic diversity Readily occurs Does not readily occur

Both A and B are subdivided into several reproductive methods. From Ԙ–ԝ below choose the

combination correctly indicating all statements in (a)–(f) below that describe reproductive methods

classified under A. 

(a) A new individual is formed from the union of two gametes that differ from each other in size and

shape.

(b) A new individual is formed from the development and separation of a bud-like structure on part

of the body.

(c) The original individual divides into two new individuals of nearly the same size.

(d) Part of a plant root, stem or leaf separates into a new individual after a period of growth.

(e) A new individual is formed from the union of a motile male gamete and a nonmotile female

gamete.

(f) A new individual is formed from the union of two gametes that have the same size and shape.

Ԙ a, d ԙ a, e Ԛ b, c, d ԛ b, e, f Ԝ a, e, f

ԝ c, e, f

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(2) From Ԙ–Ԝ below choose an organism that exhibits the reproduction method described by

statement (f) in question (1) above. 

Ԙ sea urchin

ԙ sea lettuce (8OYD)

Ԛ &KODP\GRPRQDV

ԛ potato

Ԝ amoeba

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Q4 The figure below schematically represents cross sections of an albuminous seed and an exalbuminous

seed.

B C

Albuminous seed Exalbuminous seed

Alleles X (x) code for a certain character in a plant that produces albuminous seeds, and alleles Y (y)

code for a certain character in a plant that produces exalbuminous seeds. From Ԙ–ԝ below choose

the combination that best indicates a possible genotype of cells in regions A, B, and C in the figure.

A B C

Ԙ ;; ;; <<

ԙ ;; [[[ <\\

Ԛ ;[ ;; <\

ԛ ;;; ;; <<\

Ԝ ;;[ ;[ <<

ԝ ;[[ ;[[ \\

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Q5 Experiments Σ–Υ below involve dividing an animal embryo into two halves (bisection). From Ԙ–

ԝ below choose the combination indicating the statements in (a)–(c) below that correctly describe

how the bisected embryo in each experiment would develop. There is no need to consider the size of

the complete larvae mentioned in (a)–(c). 

Σ A two-celled comb jelly embryo is bisected along the first cleavage plane.

Τ A two-celled sea urchin embryo is bisected along the first cleavage plane.

Υ A two-celled newt embryo is bisected by tightly constricting it with a loop of hair so that the gray

crescent is contained in only one half.

(a) No complete larvae would develop.

(b) Only one complete larva would develop.

(c) Two complete larvae would develop.

Σ Τ Υ

Ԙ a c a

ԙ a c b

Ԛ b b a

ԛ b b b

Ԝ c a a

ԝ c a b

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Q6 In a certain animal, chromosomal crossing-over occurs in the female, but not in the male. If A (a) and

B (b), two pairs of alleles on the same chromosome in this animal, have a recombination value of 20%,

what would be a probable segregation ratio of the phenotypes of offspring produced from the crossing

of two individuals with the genes shown in the figure below? From Ԙ–Ԝ below choose the best

answer, where phenotypes are enclosed in brackets [ ]. 

Female Male

A a A a

b B B b

Chromosome 

[AB] : [Ab] : [aB] : [ab]

Ԙ 2 : 1 : 1 : 0

ԙ 3 : 1 : 3 : 1

Ԛ 9 : 3 : 3 : 1

ԛ 11 : 4 : 4 : 1

Ԝ 54 : 21 : 21 : 4

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Q7 In the following family tree, from which grandparents (A–D) do the X chromosomes of Daughter E

derive? Assuming that no chromosomal crossing-over occurs, from Ԙ–ԟ below choose the answer

indicating all grandparents that may have been the sources. 

Grandfather A Grandmother B Grandfather C Grandmother D

Father Mother

Daughter E

Ԙ A, C ԙ A, D Ԛ B, C ԛ B, D

Ԝ A, B, C ԝ A, B, D Ԟ A, C, D ԟ B, C, D

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Q8 Answer questions (1) and (2) below concerning vertebrate hearts.

(1) The figure below schematically represents the human heart. The arrows in the figure represent the
direction of blood flow. Compared with blood flowing in vessels A, blood flowing in vessels D is a

brighter hue of red. In what paths does blood flow in systemic circulation and pulmonary

circulation? Also, does cardiac muscle consist of striated muscle, or smooth muscle? From Ԙ–ԛ

below choose the correct combination. 

C
D
A

Systemic circulation Pulmonary circulation Cardiac muscle

Ԙ B ĺ bodily tissues ĺ D C ĺ lungs ĺ A striated muscle

ԙ B ĺ bodily tissues ĺ D C ĺ lungs ĺ A smooth muscle

Ԛ C ĺ bodily tissues ĺ A B ĺ lungs ĺ D striated muscle

ԛ C ĺ bodily tissues ĺ A B ĺ lungs ĺ D smooth muscle

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(2) Figures I–III below schematically represent vertebrate hearts. From Ԙ–ԟ below choose the

combination correctly indicating vertebrates that typically exhibit these hearts. 

Σ Τ Υ

 I II III

Ԙ fishes birds amphibians

ԙ fishes birds reptiles

Ԛ fishes reptiles amphibians

ԛ fishes reptiles birds

Ԝ amphibians birds fishes

ԝ amphibians birds reptiles

Ԟ amphibians reptiles birds

ԟ amphibians reptiles fishes

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Q9 Of the hormones involved in regulation of blood glucose level in humans, let us denote the hormone

secreted from the adrenal cortex as A, and the hormone secreted from the adrenal medulla as B.

From Ԙ–Ԟ below choose the combination correctly indicating which of A and B exhibits the

following effects: raising of blood glucose level, lowering of blood glucose level, and stimulation of

glycogen breakdown. 

Raising of blood Lowering of blood Stimulation of


glucose level glucose level glycogen breakdown
Ԙ A B A

ԙ A B neither

Ԛ B A B

ԛ B A neither

Ԝ A and B neither A and B

ԝ A and B neither A

Ԟ A and B neither B

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Q10 Growth movement and turgor movement are types of plant movement. Tropism and nasty represent

plant responses to stimuli. From Ԙ–ԟ below choose the combination correctly indicating all plant

movements described in (a)–(c) below that can be characterized as growth movement, and as nasty.



(a) Tulip petals open when the air temperature rises.

(b) Sensitive plant (0LPRVDSXGLFD) leaves close when touched or shaken.

(c) Onion roots elongate in the direction of gravity.

Growth movement Nasty

Ԙ a, b c

ԙ a, b b, c

Ԛ a, c b

ԛ a, c a, b

Ԝ b, c a

ԝ b, c a, b

Ԟ a, b, c b

ԟ a, b, c a, c

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Q11 A stem was cut from a willow tree and suspended in moist air, with the tip (apex) side at the top. After

some time elapsed, buds emerged from the tip side and roots emerged from the base side, as shown in

the following figure. 

Tip side
Bud

Root
Base side

Another stem cut from a willow tree was suspended in moist air with the base side at the top. Buds

and/or roots formed on this stem after some time elapsed. From Ԙ–ԛ below choose the figure that

correctly represents how the result would appear.

Ԙ ԙ Ԛ ԛ

Base side Base side Base side Base side

Bud Bud Root Root

Bud Root Root Bud

Tip side Tip side Tip side Tip side

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Q12 Alcohol is produced when glucose solution is added to liquid extracted from crushed yeast (yeast

liquid). In order for this alcoholic fermentation to take place, a certain enzyme and a certain coenzyme

must be present. Experiments 1–4 below were performed to examine this relationship. From Ԙ–Ԡ

below choose the combination indicating the two statements in (a)–(f) below that can be correctly

inferred from the results of these experiments. 

Experiment 1: Yeast liquid was placed in a semipermeable-membrane pouch, which was then

immersed in water for some time to allow dialysis to occur. Next, glucose solution was

added to the liquid in the pouch (Liquid A). Very little alcohol was produced.

Experiment 2: Yeast liquid was placed in a semipermeable-membrane pouch, which was then

immersed in water for some time to allow dialysis to occur. Next, glucose solution was

added to a concentrated sample of the liquid outside the pouch (Liquid B). No alcohol

was produced.

Experiment 3: Yeast liquid was boiled (Liquid C) and then glucose solution was added to it. No

alcohol was produced.

Experiment 4: Glucose solution was added to a mixture of Liquids A and C. Alcohol was produced.

(a) The enzyme is present in Liquid B.

(b) The coenzyme is present in Liquid C.

(c) The coenzyme molecules are larger than the enzyme molecules.

(d) The coenzyme is composed of protein.

(e) Alcohol would be produced if glucose solution is added to a mixture of Liquids A and B.

(f) Alcohol would be produced if glucose solution is added to a mixture of Liquids B and C.

Ԙ a, c ԙ a, d Ԛ a, f ԛ b, c Ԝ b, d ԝ b, e

Ԟ b, f ԟ c, e Ԡ c, f

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Q13 Aerobic respiration consists of three processes: glycolysis, the citric acid cycle, and the electron

transport system. Statements (a)–(c) below describe these processes. From Ԙ–ԟ below choose the

combination that best indicates whether each statement is true (ż) or false (×). 

(a) Each of the three processes produces ATP, though in different quantities.

(b) The reaction of the citric acid cycle takes place on the inner membrane of mitochondria.

(c) Carbon dioxide is formed only in the citric acid cycle.

a b c

Ԙ ٤ ٤ ٤

ԙ ٤ ٤ ˜

Ԛ ٤ ˜ ٤

ԛ ٤ ˜ ˜

Ԝ ˜ ٤ ٤

ԝ ˜ ٤ ˜

Ԟ ˜ ˜ ٤

ԟ ˜ ˜ ˜

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Q14 Some prokaryotes are not heterotrophic, and instead carry out photosynthesis or chemosynthesis. The

following table lists, for three prokaryotes (a–c), the sources of energy they use for assimilation, and

the materials that supply the hydrogen used to reduce carbon dioxide.

Prokaryote Energy source Material supplying hydrogen

a light hydrogen sulfide, etc.

b light water

c oxidation of inorganic substances water

From Ԙ– ԝ below choose the combination that correctly identifies prokaryotes a–c as

cyanobacteria, photosynthetic bacteria, or chemosynthetic bacteria. 

a b c

Ԙ cyanobacteria photosynthetic bacteria chemosynthetic bacteria

ԙ cyanobacteria chemosynthetic bacteria photosynthetic bacteria

Ԛ photosynthetic bacteria cyanobacteria chemosynthetic bacteria

ԛ photosynthetic bacteria chemosynthetic bacteria cyanobacteria

Ԝ chemosynthetic bacteria cyanobacteria photosynthetic bacteria

ԝ chemosynthetic bacteria photosynthetic bacteria cyanobacteria

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Q15 The following table is a genetic code table that lists, for a certain organism, the mRNA codons and

their corresponding amino acids. There are 61 different codons coding for 20 different amino acids.

Dashes (—) in the table indicate that a particular codon does not code for an amino acid. Answer

questions (1) and (2) on the following page concerning this table.

First Second base of codon Third

base of base of
codon U C A G codon
UUU UCU UAU UGU U
Phenylalanine Tyrosine Cysteine
UUC UCC UAC UGC C
U Serine
UUA UCA UAA ̆ UGA ̆ A
Leucine
UUG UCG UAG ̆ UGG Tryptophan G
CUU CCU CAU CGU U
Histidine
CUC CCC CAC CGC C
C Leucine Proline Arginine
CUA CCA CAA CGA A
Glutamine
CUG CCG CAG CGG G
AUU ACU AAU AGU U
Asparagine Serine
AUC Isoleucine ACC AAC AGC C
A Threonine
AUA ACA AAA AGA A
Lysine Arginine
AUG Methionine ACG AAG AGG G
GUU GCU GAU GGU U
Aspartic acid
GUC GCC GAC GGC C
G Valine Alanine Glycine
GUA GCA GAA GGA A
Glutamic acid
GUG GCG GAG GGG G

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(1) Statements (a)–(e) below concern the genetic code table. From Ԙ–ԝ below choose the

combination indicating the two statements that are correct. 

(a) One codon codes for two or more different amino acids.

(b) Many types of amino acids are coded for by more than one codon.

(c) If the DNA base sequence that codes for proline changes so that its base corresponding to the

codon’s third base is replaced by a different base, then the amino acid coded for by that base

sequence will also change.

(d) If the DNA base sequence that codes for proline changes so that its base corresponding to the

codon’s first base is replaced by a different base, then the amino acid coded for by that base

sequence will change to serine, threonine, or alanine.

(e) Even if the DNA base sequence that codes for arginine changes so that its base corresponding to

the codon’s second base is replaced by a different base, no change will occur in the amino acid

coded for by that base sequence.

Ԙ a, c ԙ a, d Ԛ a, e ԛ b, c Ԝ b, d ԝ b, e

(2) In this organism, when a change occurred in just one base in the DNA region of a certain gene, that

gene consequently synthesized a protein that has one different amino acid. Specifically, the amino

acid changed from glutamic acid to valine. What base changed in the gene’s DNA that serves as the

mRNA template? From Ԙ–ԟ below choose the correct answer. 

Ԙ A changed to G ԙ A changed to T

Ԛ T changed to A ԛ T changed to C

Ԝ G changed to A ԝ G changed to C

Ԟ C changed to G ԟ C changed to A

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End of Biology questions. Leave the answer spaces ᾀᾈ 㨪 ᾆᾄᴾ blank.

Please check once more that you have properly marked the name of your subject as

“Biology” on your answer sheet.

 
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