Q.1
How do plants breathe?
  • Through the stem
  • Through the stomata
  • Through the chloroplast
  • All of above
Q.2
Cytochromes are found in
  • Cristae of mitochondria
  • Lysosomes
  • Matrix of mitochondria
  • Outer wall of mitochondria
Q.3
Which statement is wrong for Krebs' cycle ?
  • There is one point in the cycle where FAD+ is reduced to FADH2
  • During conversion of succinyl CoA to succinic acid, a molecule of GTP is synthesised
  • The cycle starts with condensation of acetyl group (acetyl CoA) with pyruvic acid to yield citric acid
  • There are three points in the cycle where NAD+ is reduced to NADH + H+
Q.4
Which metabolic pathway is a common pathway to both anaerobic and aerobic metabolism?
  • TCA cycle
  • ETS
  • EMP pathway
  • Kreb’s cycle
Q.5
In which part of the cell does photosynthesis take place?
  • vacuole
  • mitochondria
  • cell wall
  • chloroplast
Q.6
How many oxidation, decarboxylation and substrate level phosphorylation occurs respectively during complete oxidation of two pyruvate molecule :–
  • 3, 5, 1
  • 6, 10, 2
  • 10, 6, 2
  • 5, 3, 1
Q.7
What is the correct equation for cellular respiration?
  • 6O2 + C6H12O6 -> 6CO2 + 6H2O + Energy
  • 6O2 + C6H12O6 + Energy -> 6CO2 + 6H2O
  • 6CO2 + 6H2O -> 6O2 + C6H12O6 + Energy
  • 6CO2 + 6H2O + Energy -> 6O2 + C6H12O6
Q.8
Where does cellular respiration happen?
  • chloroplasts
  • ribosomes
  • mitochondria
  • cell membrane
Q.9
What function does ATP carry out in living things?
  • aids in protein folding and coiling
  • used to capture and transfer energy
  • identifies DNA start sequences for transcription
  • helps maintain the fluidity of cell membranes
Q.10
In which way are photosynthesis and cellular respiration different?
  • Cellular respiration stores ATP, while photosynthesis releases ATP.
  • Cellular respiration produces oxygen, while photosynthesis uses oxygen.
  • Photosynthesis releases energy, while cellular respiration stores energy.
  • Photosynthesis used carbon dioxide, while cellular respiration produces carbon dioxide.
Q.11
Which of the following metabolites enter the TCA cycle during glucose oxidation ?
  • Oxaloacetic acid
  • Pyruvic acid
  • Acetyl CoA
  • Malic acid
Q.12
The two types of respiration are:
  • Anaerobic Respiration
  • Aerobic Respiration
  • Anaorebic Respiration
  • Both A & B
  • None of the above
Q.13
The respiration of the plants ocurrs in :
  • The morning
  • The night
  • The morning and night
  • None of these
Q.14
The photosynthesis ocurrs in :
  • The morning
  • The night
  • The morning and night
  • All of above
Q.15
Cellular respiration takes place in the cells of all organisms.
  • false
  • true
Q.16
All living organisms respire to get energy from food.
  • true
  • false
Q.17
In anaerobic respiration, _______ is not required.
  • ATP
  • Glucose
  • Oxygen
  • None of these
Q.18
Substrate-level phosphorylation accounts for approximately what percentage of the ATP formed by the reactions of glycolysis?
  • 0%
  • 2%
  • 10%
  • 100%
Q.19
Identify 'x' in the given equation and also find which respiration is it.(C6H12O6 + X -----> CO2 + H+ Energy)Select Accordingly
  • Oxygen [6O2] , Aerobic Respiration
  • Oxygen [O2], Anaerobic Respiration
Q.20
Where in the body does respiration take place? Select the best answer.
  • Inside the lungs
  • Inside the muscles
  • Inside the cells
  • Inside the blood
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