759 + Interview Questions in RESPIRATION IN GENERAL AWARENESS Page 4 InterviewSolution

151.	Which one is the last electron acceptor over ETC in oxidative phosphorylationA. `H_(2)`B. Cyt`a_(3)`C. Cyt bD. `CO_(2)`.
Answer» Correct Answer - B

Discussion

152.	Before combining with OAA, pyruvic acid is changed intoA. Succinic acidB. Malic acidC. Acetyl CoAD. Citric acid.
Answer» Correct Answer - C

Discussion

153.	What is called the universal energy coin of the cell? (a) ATP (b) DNA (c) RNA (d) AMP
Answer» The answer is (a) ATP

Discussion

154.	What is the difference between free-floating respiration and protoplasmic respiration?
Answer» In free-floating respiration, carbohydrates are used as a respiratory substrate whereas in protoplasmic respiration proteins are used as a respiratory substrate. Free-floating respiration is the normal respiration process of an organism and protoplasmic respiration takes place when all carbohydrates and fats are used up and when the organisation is under starvation condition.

Discussion

155.	During protoplasmic respiration, what acts as a respiratory substrate? (a) Fats (b) Proteins (c) Sugar (d) All the above
Answer» The answer is (b) Proteins

Discussion

156.	What do you understand by protoplasmic respiration?
Answer» When proteins are used as respiratory substrate the process is called protoplasmic respiration.

Discussion

157.	Which of the substrate is used in protoplasmic respirationA. CarbohydrateB. ProteinC. FatD. Organic acids.
Answer» Correct Answer - B

Discussion

158.	The value of R.Q. is less than one of which substrate? (a) Glucose (b) Sucrose (c) Starch (d) Proteins
Answer» The answer is (d) Proteins

Discussion

159.	Where the reactions of aerobic respiration are completed in the cell?
Answer» The answer is Mitochondria

Discussion

160.	How the value of R.Q. is affected by the nature of respiratory substrates?
Answer» The value of R.Q. depends upon the nature of the respiratory substrates. The value of R.Q. is variable according to the substrate. The substrates having more oxygen in comparison to carbon, need less oxygen for oxidation and hence their R.Q. is more than 1, whereas those substrates where O₂ is less than carbon, require more O₂ for their oxidation and their R.Q. is less than one. R.Q. of carbohydrates = 1.0 R.Q. of fats = 0.7 (1) R.Q. of proteins = 0.8 (<1) R.Q. organic acids = 1.33 (>1)

160.

How the value of R.Q. is affected by the nature of respiratory substrates?

Answer»

The value of R.Q. depends upon the nature of the respiratory substrates. The value of R.Q. is variable according to the substrate. The substrates having more oxygen in comparison to carbon, need less oxygen for oxidation and hence their R.Q. is more than 1, whereas those substrates where O₂ is less than carbon, require more O₂ for their oxidation and their R.Q. is less than one.

R.Q. of carbohydrates = 1.0

R.Q. of fats = 0.7 (1)

R.Q. of proteins = 0.8 (<1)

R.Q. organic acids = 1.33 (>1)

Discussion

161.	Which substance is called connecting link between glycolysis and Krebs cycle?
Answer» Acetyl coenzyme A is called as a connecting link between glycolysis and Krebs cycle

Discussion

162.	Why the Krebs cycle is also called the TCA cycle?
Answer» Krebs cycle reactions begin with the formation of citric acid which contains three (COOH) carboxylic groups. Hence it is called T.C.A. cycle.

Discussion

163.	What is the site of the Krebs cycle in cells? (a) Nucleus (b) Cytoplasm (c) Plastids(d) Mitochondria
Answer» The answer is (d) Mitochondria

Discussion

164.	What is the end product of glycolysis?
Answer» The answer is Pyruvic acid (CH₃CO.COOH)

Discussion

165.	Oxidation of glucose to `CO_(2)` and water occurs duringA. GlycolysisB. Pentose phosphate pathwayC. Krebs cycleD. All the above
Answer» Correct Answer - B

Discussion

166.	What is common in common pathway of aerobic respirationA. Glycolysis in both aerobic and anaerobic respirationB. Kerbs cycle common with HMPC. Terminal oxidation in both aerobic and anaerobic respirationD. Kerbs cycle in both aerobic and anaerobic respiration
Answer» Correct Answer - A

Discussion

167.	Accumulation of excess _____ in the muscles causes pain .
Answer» cytoplasm, mitochondria

Discussion

168.	the number of glucose molecules required to produces 38 ATP molecules under anaerobic conditions by a yeast cells isA. 2B. 4C. 19D. 38
Answer» Correct Answer - C

Discussion

169.	Types of aerobic respiration areA. Glycolysis and HMPB. Common pathway and HMPC. Krebs cycle and PPPD. Terminal oxidation and common pathway
Answer» Correct Answer - B

Discussion

170.	In which step of Krebs cycle, `CO_(2)` is evolvedA. Isocitric acid `rarr`Oxalosuccinic acidB. Succinic acid `rarr` Fumaric acidC. Oxalosuccinic acid `rarr alpha`-ketoglutaric acidD. Maleic acid `rarr` Oxaloacetic acid.
Answer» Correct Answer - C

Discussion

171.	Which can readily respire without oxygen ?A. AnabaenaB. SaccharomycesC. MushroomD. Fish.
Answer» Correct Answer - B

Discussion

172.	Muscular pain is caused due to accumulation of………A) Lactic acid B) Citric acid C) Tartaric acid D) Nitric acid
Answer» (A) Lactic acid

Discussion

173.	Green plants kept in light produce ATP from glucose. The process isA. PhotophosphorylationB. GlycolysisC. TCA cycleD. Oxidativ phosphorylation.
Answer» Correct Answer - D

Discussion

174.	Glycolysis and TCA cycle operate respectively inA. Cytosol and matrix of mitochondrionB. Cytosol and stroma of chloroplastC. Cytosol and oxysomes of mitochondrionD. Matrix of mitochondrion and inner membrane of mitochondrion.
Answer» Correct Answer - A

Discussion

175.	The different steps of aerobic respiration areA. Glycolysis and oxidative phosphorylationB. Glycolysis and Krebs cycleC. Glycolysis, Krebs cycle and terminal oxidationD. Kerbs cycle and terminal oxidation.
Answer» Correct Answer - C

Discussion

176.	A molecule of ATP is formed as an electron passes fromA. Cyt c to Cyt aB. Cyt b to Cyt cC. Cyt a to Cyt cD. Cyt c to Cyt b.
Answer» Correct Answer - B

Discussion

177.	In germinating seed, R.Q. falls when there is shift fromA. Carbonydrate to fat as substrateB. Fat to carbohydrateC. Aerobic to anaerobic respirationD. Protein to carbohydrate.
Answer» Correct Answer - A

Discussion

178.	In ETC, first ATP is formed when hydrogen passes fromA. FMN to NADB. FMN to CoQC. NAD to FMND. NAD to CoQ
Answer» Correct Answer - C

Discussion

179.	Number of ATP formed per molecule of oxygen used in respiration isA. 16B. 8C. 6D. 4
Answer» Correct Answer - C

Discussion

180.	Mitochondria are sites ofA. Oxidative phosphorylationB. PhotolysisC. PhosphorylationD. Starch synthesis.
Answer» Correct Answer - A

Discussion

181.	Wounding results inA. Stoppage of growthB. InfectionC. Decreased rate of respirationD. Increased rate of respiration.
Answer» Correct Answer - D

Discussion

182.	What happens if moisture is not present in the respiratory path ?A) Dust particles will not be removedB) Air reaches the lungs without get moistened during summerC) Air reaches the lungs without get moistened during winterD) All the above
Answer» (A) Dust particles will not be removed

Discussion

183.	Amount of energy available per mole of oxygen used in biological oxidation isA. 114 kcalB. 686 kcalC. 256 kcalD. 60 kcal
Answer» Correct Answer - A

Discussion

184.	Pasteur effect is due toA. Change from aerobic to anaerobicB. Providing oxygen to anaerobically respiring structuresC. Rapid utilisation of ATPD. Nonsynthesis of ATP
Answer» Correct Answer - B

Discussion

185.	Providing oxygen to anaerobically respiring structures leads toA. Decreased ATP synthesisB. Excess consumption of respiratory substrateC. Hexose monophosphate shuntD. More ATP synthesis in mitochondria.
Answer» Correct Answer - D

Discussion

186.	If the alveoli of our lungs are spread out, they will cover an area of nearly A) 60 m2 B) 160 m2 C) 80 m2 D) 100 m2
Answer» Answer is (B) 160 m²

Discussion

187.	Number of ATP molecules which can be built on complete oxidation of pyruvic acid isA. 6B. 2C. 15D. 30
Answer» Correct Answer - C

Discussion

188.	R.Q. is infinity. Respiration isA. Aerobic, carbohydrateB. Aerobic, fatC. Aerobic, proteinD. Anaerobic, carbohydrate.
Answer» Correct Answer - D

Discussion

189.	Rate of respiration shallA. Increase with rise in temperatureB. Decrease in the presence of lightC. Increase in winterD. No change with season and environmental conditions
Answer» Correct Answer - A

Discussion

190.	Aerobic respiration is more advantageous than anaerobic respiration becauseA. It requires oxygenB. It produces more energyC. It causes complete break down of respiratory substrateD. Aerobic respiration produces water.
Answer» Correct Answer - B

Discussion

191.	During jogging body temperature rises. Why? A) Due to over sweating B) Temperature increases due to over exercise C) To regain strength with CO2D) Over consumption and loss of glucose in the body
Answer» (D) Over consumption and loss of glucose in the body

Discussion

192.	The structural and functional units that participate in the gaseous exchange of lungs are ………A) Bronchus B) Bronchioles C) Alveoli D) Dendrites
Answer» The structural and functional units that participate in the gaseous exchange of lungs are Alveoli

Discussion

193.	Consider the following statements. a) Vibration of vocal cords generate voice b) Exhaled air creates vibrations at vocal cords A) Both a and b are true B) a is true, b is false C) a is false, b is true D) Both a and b are false
Answer» A) Both a and b are true

Discussion

194.	Vocal cords are located in………. A) pharynx B) larynx C) nasal cavity D) trachea
Answer» Vocal cords are located in larynx

Discussion

195.	R.Q. for protein isA. 1.4B. 0.5C. 0.7-0.9D. Unity.
Answer» Correct Answer - C

Discussion

196.	R.Q. stands forA. Resistance coefficientB. Replicase concentrationC. Respiratory quotientD. Reticular concentration
Answer» Correct Answer - C

Discussion

197.	We will find vocal cords in A) larynx B) pharynx C) nasal cavity D) trachea
Answer» We will find vocal cords in larynx

Discussion

198.	Find out the labelled part of mitochondria indicated with (?) mark.A) Inner membrane B) Cristae C) Lamellae D) Thylakoid
Answer» Answer is (B) Cristae

Discussion

199.	In which organisms does exchange of gases take place through diffusion?
Answer» In Amoeba, hydra and planarians exchange of gases takes place through diffusion.

Discussion

200.	In tracheal respiratory system which carry air directly to the cells in the tissues?
Answer» Trachioles, the fine branches of trachea carry air directly to the cells in the tissues.

Discussion

Explore topic-wise InterviewSolutions in .

Which one is the last electron acceptor over ETC in oxidative phosphorylationA. `H_(2)`B. Cyt`a_(3)`C. Cyt bD. `CO_(2)`.

Before combining with OAA, pyruvic acid is changed intoA. Succinic acidB. Malic acidC. Acetyl CoAD. Citric acid.

What is called the universal energy coin of the cell? (a) ATP (b) DNA (c) RNA (d) AMP

What is the difference between free-floating respiration and protoplasmic respiration?

During protoplasmic respiration, what acts as a respiratory substrate? (a) Fats (b) Proteins (c) Sugar (d) All the above

What do you understand by protoplasmic respiration?

Which of the substrate is used in protoplasmic respirationA. CarbohydrateB. ProteinC. FatD. Organic acids.

The value of R.Q. is less than one of which substrate? (a) Glucose (b) Sucrose (c) Starch (d) Proteins

Where the reactions of aerobic respiration are completed in the cell?

How the value of R.Q. is affected by the nature of respiratory substrates?

Which substance is called connecting link between glycolysis and Krebs cycle?

Why the Krebs cycle is also called the TCA cycle?

What is the site of the Krebs cycle in cells? (a) Nucleus (b) Cytoplasm (c) Plastids(d) Mitochondria

What is the end product of glycolysis?

Oxidation of glucose to `CO_(2)` and water occurs duringA. GlycolysisB. Pentose phosphate pathwayC. Krebs cycleD. All the above

What is common in common pathway of aerobic respirationA. Glycolysis in both aerobic and anaerobic respirationB. Kerbs cycle common with HMPC. Terminal oxidation in both aerobic and anaerobic respirationD. Kerbs cycle in both aerobic and anaerobic respiration

Accumulation of excess _____ in the muscles causes pain .

the number of glucose molecules required to produces 38 ATP molecules under anaerobic conditions by a yeast cells isA. 2B. 4C. 19D. 38

Types of aerobic respiration areA. Glycolysis and HMPB. Common pathway and HMPC. Krebs cycle and PPPD. Terminal oxidation and common pathway

In which step of Krebs cycle, `CO_(2)` is evolvedA. Isocitric acid `rarr`Oxalosuccinic acidB. Succinic acid `rarr` Fumaric acidC. Oxalosuccinic acid `rarr alpha`-ketoglutaric acidD. Maleic acid `rarr` Oxaloacetic acid.

Which can readily respire without oxygen ?A. AnabaenaB. SaccharomycesC. MushroomD. Fish.

Muscular pain is caused due to accumulation of………A) Lactic acid B) Citric acid C) Tartaric acid D) Nitric acid

Green plants kept in light produce ATP from glucose. The process isA. PhotophosphorylationB. GlycolysisC. TCA cycleD. Oxidativ phosphorylation.

Glycolysis and TCA cycle operate respectively inA. Cytosol and matrix of mitochondrionB. Cytosol and stroma of chloroplastC. Cytosol and oxysomes of mitochondrionD. Matrix of mitochondrion and inner membrane of mitochondrion.

The different steps of aerobic respiration areA. Glycolysis and oxidative phosphorylationB. Glycolysis and Krebs cycleC. Glycolysis, Krebs cycle and terminal oxidationD. Kerbs cycle and terminal oxidation.

A molecule of ATP is formed as an electron passes fromA. Cyt c to Cyt aB. Cyt b to Cyt cC. Cyt a to Cyt cD. Cyt c to Cyt b.

In germinating seed, R.Q. falls when there is shift fromA. Carbonydrate to fat as substrateB. Fat to carbohydrateC. Aerobic to anaerobic respirationD. Protein to carbohydrate.

In ETC, first ATP is formed when hydrogen passes fromA. FMN to NADB. FMN to CoQC. NAD to FMND. NAD to CoQ

Number of ATP formed per molecule of oxygen used in respiration isA. 16B. 8C. 6D. 4

Mitochondria are sites ofA. Oxidative phosphorylationB. PhotolysisC. PhosphorylationD. Starch synthesis.

Wounding results inA. Stoppage of growthB. InfectionC. Decreased rate of respirationD. Increased rate of respiration.

What happens if moisture is not present in the respiratory path ?A) Dust particles will not be removedB) Air reaches the lungs without get moistened during summerC) Air reaches the lungs without get moistened during winterD) All the above

Amount of energy available per mole of oxygen used in biological oxidation isA. 114 kcalB. 686 kcalC. 256 kcalD. 60 kcal

Pasteur effect is due toA. Change from aerobic to anaerobicB. Providing oxygen to anaerobically respiring structuresC. Rapid utilisation of ATPD. Nonsynthesis of ATP

Providing oxygen to anaerobically respiring structures leads toA. Decreased ATP synthesisB. Excess consumption of respiratory substrateC. Hexose monophosphate shuntD. More ATP synthesis in mitochondria.

If the alveoli of our lungs are spread out, they will cover an area of nearly A) 60 m2 B) 160 m2 C) 80 m2 D) 100 m2

Number of ATP molecules which can be built on complete oxidation of pyruvic acid isA. 6B. 2C. 15D. 30

R.Q. is infinity. Respiration isA. Aerobic, carbohydrateB. Aerobic, fatC. Aerobic, proteinD. Anaerobic, carbohydrate.

Rate of respiration shallA. Increase with rise in temperatureB. Decrease in the presence of lightC. Increase in winterD. No change with season and environmental conditions

Aerobic respiration is more advantageous than anaerobic respiration becauseA. It requires oxygenB. It produces more energyC. It causes complete break down of respiratory substrateD. Aerobic respiration produces water.

During jogging body temperature rises. Why? A) Due to over sweating B) Temperature increases due to over exercise C) To regain strength with CO2D) Over consumption and loss of glucose in the body

The structural and functional units that participate in the gaseous exchange of lungs are ………A) Bronchus B) Bronchioles C) Alveoli D) Dendrites

Consider the following statements. a) Vibration of vocal cords generate voice b) Exhaled air creates vibrations at vocal cords A) Both a and b are true B) a is true, b is false C) a is false, b is true D) Both a and b are false

Vocal cords are located in………. A) pharynx B) larynx C) nasal cavity D) trachea

R.Q. for protein isA. 1.4B. 0.5C. 0.7-0.9D. Unity.

R.Q. stands forA. Resistance coefficientB. Replicase concentrationC. Respiratory quotientD. Reticular concentration

We will find vocal cords in A) larynx B) pharynx C) nasal cavity D) trachea

Find out the labelled part of mitochondria indicated with (?) mark.A) Inner membrane B) Cristae C) Lamellae D) Thylakoid

In which organisms does exchange of gases take place through diffusion?

In tracheal respiratory system which carry air directly to the cells in the tissues?