This practice test includes 25 important multiple-choice questions (MCQ) from the chapter Respiration In Plants in Class 11th Biology for NEET-UG, viva, medical, and other competitive entrance exams.
Respiration in plants – (Class 11th Biology) Revision Test | MCQs for NEET
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Total: 25 Questions
Questions
Q1.
R.Q is ratio of
📘 Explanation:
CO2 produced to O2 consumed
Q2.
Angiosperm pollen is generally released at the
Q3.
The complete oxidation of pyruvate take place in
📘 Explanation:
Pyruvate is transported from cytoplasm into the mitochondria. The complete oxidation of pyruvate takes place in matrix of mitochondria
Q4.
Which enzyme catalyses the reaction below? Pyruvic acid → Carbon dioxide + Ethanol
📘 Explanation:
In fermentation, the incomplete oxidation of glucose is achieved under anaerobic conditions by sets of reactions in which pyruvic acid is converted to carbon dioxide and ethanol.
Q5.
TCA cycle was discovered by
📘 Explanation:
TCA cycle or tricarboxylic acid cycle was given by Hans Kreb. So it is also called as Kreb cycle.
Q6.
Which one of the following describes the spikelet of a cereal or grass plant
📘 Explanation:
pair of glumes
Q7.
Malacophily means
📘 Explanation:
pollination by snails
Q8.
Herkogamy is a contrivance for
📘 Explanation:
allogamy
Q9.
Out of 36 ATP molecules produced per glucose molecule during respiration
📘 Explanation:
2 are produced outside mitochondria and 34 inside the mitochondria
Q10.
Complete the reaction. _________ + O2 → CO2 + _______ + Energy
📘 Explanation:
C6H12O6 + 6O2 → 6CO2 + 6H2O + Energy
Q11.
The significant morphological feature of passion flower is the presence of
Q12.
The final electron acceptor in electron transport chain is
📘 Explanation:
Oxygen acts as the final electron acceptor in electron transport chain.
Q13.
Which of the following acts as mobile carrier for transfer of electrons between complex III and complex IV?
📘 Explanation:
Cytochrome c is a small protein attached to outer surface of the inner membrane and acts as mobile carrier for transfer of electrons between complex III and IV.
Q14.
Aleurone layer takes part in
Q15.
A characteristic of drupe is
📘 Explanation:
stony endocarp is characteristic of drupe is
Q16.
Incomplete oxidation of glucose into pyruvic acid with several intermediate steps is know as
Q17.
End product of glycolysis is
📘 Explanation:
The end product of glycolysis is pyruvate.
Q18.
Respiratory enzymes are located in
Q19.
Respiratory quotient of carbohydrates is
📘 Explanation:
RQ i.e. respiratory quotient is 1.RQ = volume of CO2 evolved / volume of O2 consumed
Q20.
One molecule of glucose yields ___ ATP molecules in aerobic respiration.
📘 Explanation:
One molecule of glucose yields 38 molecules of ATP during aerobic respiration.
Q21.
When one glucose molecule is completely oxidised, it changes:
📘 Explanation:
38 ADP molecules into 38 ATP molecules
Q22.
Most of the energy of the carbohydrates is released by oxidation when
📘 Explanation:
Pyruvic acid is converted into CO2 and H2O
Q23.
Acetyl CoA combine with oxalo-acetate in presence of condensing enzyme citrate synthase to form 6-C compound called
📘 Explanation:
Citric acid
Q24.
Number of oxygen atoms required for aerobic oxidation of one pyruvate
📘 Explanation:
10 Number of oxygen atoms required for aerobic oxidation of one pyruvate
Q25.
Most of the enzymes of the TCA cycle are present in
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