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BIOLOGY M.C.Q (1 Marks)

PART - 2 - Unit IV : CH - 12 Respiration in Plants · Gujarat Board (GSEB) STD 11 Science (GSEB - English Medium). 38 questions.

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M.C.Q (1 Marks)

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38 questions · auto-graded multiple-choice test.

MCQ 11 Mark
The hole found in plants, through which exchange of gases takes place:
  • A
    Stomata and gill pores
  • B
    Root hair pores and stomata
  • C
    White holes and stomata
  • ✓
    Stomata and lenticels
Answer
Correct option: D.
Stomata and lenticels
D
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MCQ 21 Mark
TCA cycle starts with the condensation of acetyl group with oxaloacetic acid and water, because of which what is formed?
  • ✓
    Citric acid
  • B
    Succinic acid
  • C
    Malic acid
  • D
    $\alpha$-ketoglutaric acid
Answer
Correct option: A.
Citric acid
A
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MCQ 31 Mark
Bacteria make pyruvic acid from:
  • ✓
    Lactic acid
  • B
    Succinic acid
  • C
    Malic acid
  • D
    Sulfuric acid
Answer
Correct option: A.
Lactic acid
A
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MCQ 51 Mark
What will be the value of respiratory coefficient of Tripalmitin?
  • A
    $0.09$
  • B
    $0.9$
  • ✓
    $0.7$
  • D
    $0.0735$
Answer
Correct option: C.
$0.7$
C
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MCQ 61 Mark
Respiratory Quotient (RQ) is:
  • A
    Volume of $CO _2$ released $\times$ Volume of $O _2$ used
  • B
    Volume of $O _2$ used/Volume of $CO _2$ released
  • ✓
    Volume of $CO _2$ released/Volume of $O _2$ used
  • D
    Volume of $O _2$ used/Volume of $CO _2$ released $\times CO _2$
Answer
Correct option: C.
Volume of $CO _2$ released/Volume of $O _2$ used
C
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MCQ 71 Mark
R.Q. of fatty substances is generally:
  • A
    one
  • ✓
    less than one
  • C
    more than one
  • D
    zero
Answer
Correct option: B.
less than one
B
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MCQ 91 Mark
In the Krebs' cycle, OAA reacts with acetyl CoA to form :
  • ✓
    Citric acid
  • B
    Oxalosuccinate
  • C
    Fumarate
  • D
    Succinyl co-enzyme
Answer
Correct option: A.
Citric acid
A
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MCQ 101 Mark
Which of the following is essential in the electron transport system?
  • ✓
    Ubiquinone
  • B
    Acetyl CoA
  • C
    Tricarboxylic acid
  • D
    Ferricyanide
Answer
Correct option: A.
Ubiquinone
A
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MCQ 121 Mark
Which of the following is the complex V of ETS which is found in the inner membrane of mitochondria?
  • A
    NADH dehydrogenase
  • B
    Cytochrome 'c' oxidase
  • ✓
    ATP synthase
  • D
    Succinate dehydrogenase
Answer
Correct option: C.
ATP synthase
C
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MCQ 131 Mark
Krebs cycle starts:
  • ✓
    from pyruvic acid
  • B
    hydrochloric
  • C
    lysine
  • D
    corticosteroids
Answer
Correct option: A.
from pyruvic acid
A
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MCQ 151 Mark
Who did the detailed study of tricarboxylic acid pathway:
  • A
    Mischer
  • ✓
    Hans Krebs
  • C
    Pasteur
  • D
    Altman
Answer
Correct option: B.
Hans Krebs
B
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MCQ 161 Mark
Along with the net gain of 2 ATP molecules, what else is formed in glycolysis?
  • A
    FADH2
  • B
    NADPH2
  • ✓
    NaDH2
  • D
    FAMH2
Answer
Correct option: C.
NaDH2
C
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MCQ 171 Mark
Which enzyme is involved in converting fructose-6 phosphate into fructose in the of 1.6 diphosphate?
  • ✓
    Phosphofructose cylase
  • B
    Aldolase
  • C
    Hexokinase
  • D
    None of the above
Answer
Correct option: A.
Phosphofructose cylase
A
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MCQ 181 Mark
Anaerobic respiration occurs:
  • A
    in mitochondria
  • ✓
    in the cytoplasm
  • C
    in lysosomes
  • D
    endoplasmic reticulum
Answer
Correct option: B.
in the cytoplasm
B
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MCQ 191 Mark
Which of the following plants is most recognised for anaerobic respiration?
  • ✓
    Yeast
  • B
    Potato
  • C
    Chlorella
  • D
    Grass
Answer
Correct option: A.
Yeast
A
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MCQ 201 Mark
During electron transport mechanism the use of free energy synthesis of ATP takes place with the help of:
  • ✓
    Complex-II
  • B
    Complex-IV
  • C
    Complex-V
  • D
    Complex-III
Answer
Correct option: A.
Complex-II
A
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MCQ 211 Mark
Cytochrome c oxidase complex is formed by:
  • A
    Cytochrome a
  • B
    Cytochrome a3
  • C
    Two copper centres
  • ✓
    All of these
Answer
Correct option: D.
All of these
D
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MCQ 221 Mark
In which part of mitochondria is the electron transport system (ETS) accomplished?
  • A
    On the outer membrane of mitochondria
  • ✓
    On the inner membrane of mitochondria
  • C
    In the matrix of mitochondria
  • D
    None of the above
Answer
Correct option: B.
On the inner membrane of mitochondria
B
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MCQ 231 Mark
The metabolic pathway by which electrons pass from one carrier to another is called:
  • A
    CTS
  • ✓
    ETS
  • C
    KTS 17
  • D
    PTS
Answer
Correct option: B.
ETS
B
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MCQ 241 Mark
At how many places in the tricarboxylic acid cycle is NAD reduced to NADH + H+ :
  • A
    Two
  • ✓
    Three
  • C
    Four
  • D
    Five
Answer
Correct option: B.
Three
B
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MCQ 261 Mark
How many molecules of NADH are produced from the metabolism of two molecules of pyruvic acid?
  • A
    One
  • ✓
    Two
  • C
    Three
  • D
    Four
Answer
Correct option: B.
Two
B
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MCQ 271 Mark
The link between glycolysis and Krebs' cycle is:
  • A
    Malic acid
  • B
    ATP
  • C
    NADPH
  • ✓
    Acetyl Co.A
Answer
Correct option: D.
Acetyl Co.A
D
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MCQ 281 Mark
Where among the following does glycolysis take place?
  • ✓
    In the cytoplasm
  • B
    In the membrane of mitochondria
  • C
    In the membranes of chlorophyll
  • D
    In the matrix
Answer
Correct option: A.
In the cytoplasm
A
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MCQ 291 Mark
The final product of controlled complete oxidation combustion of glucose is:
  • A
    only CO2
  • B
    only H2O
  • C
    energy
  • ✓
    CO2, water and energy
Answer
Correct option: D.
CO2, water and energy
D
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MCQ 301 Mark
Which of the following can be used as a respiratory agent?
  • A
    Protein
  • B
    Organic acids
  • C
    Fat
  • ✓
    All of these
Answer
Correct option: D.
All of these
D
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MCQ 311 Mark
During anaerobic respiration what is obtained by the incomplete decomposition of glucose?
  • A
    Fructose and water
  • B
    Glucose and CO2
  • ✓
    Alcohol and CO2
  • D
    Water and CO2
Answer
Correct option: C.
Alcohol and CO2
C
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MCQ 321 Mark
The terminal cytochrome of the respiratory chain is:
  • A
    Cyt.a
  • ✓
    Cyt a3
  • C
    cyt.b6
  • D
    cyt.6
Answer
Correct option: B.
Cyt a3
B
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MCQ 341 Mark
What can the respiratory pathway be called?
  • A
    Anabolic path
  • B
    Reducing path
  • ✓
    Amphibolic path
  • D
    Energy path
Answer
Correct option: C.
Amphibolic path
C
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MCQ 351 Mark
Krebs' cycle is:
  • A
    Anaerobic reaction
  • ✓
    Oxidative reaction
  • C
    Amphibolic reaction
  • D
    Fermentation
Answer
Correct option: B.
Oxidative reaction
B
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MCQ 361 Mark
Which part of the electron transport system is not a protein?
  • A
    Cytochrome
  • ✓
    Ubiquinone
  • C
    Cytochrome oxidase
  • D
    All of these
Answer
Correct option: B.
Ubiquinone
B
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MCQ 371 Mark
Both respiration and photosynthesis require :
  • A
    of light
  • B
    chlorophyll
  • ✓
    cytochrome
  • D
    glucose
Answer
Correct option: C.
cytochrome
C
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MCQ 381 Mark
How many ATP molecules are produced from one molecule of glucose in oxygen respiration?
  • A
    30 ATP
  • B
    32 ATP
  • C
    34 ATP
  • ✓
    36 ATP
Answer
Correct option: D.
36 ATP
D
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