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In which of the following steps of respiration CO2 is produced?
Glycolysis
Krebs cycle
Electron transport chain
All of these
Oxygen takes part in aerobic respiration in
Glycolysis
Link step between glycolysis and Krebs cycle
Krebs cycle
Electron transport chain
When a plant was kept in darkness for many days its leaves turned yellow. Why?
Leaves could not get oxygen and so there was no photosynthesis
Leaves could not get light and so there was no respiration
Leaves could not get oxygen and so there was no respiration
Leaves could not get light and so there was no photosynthesis
From which bonds of ATP molecule energy is taken?
P-P bonds
C-H bonds
C-N bonds
C-O bonds
In which component of the leaf cells, chlorophyll is present?
Stroma
Thylakoids
Plasma membrane
Cytoplasm
Which of these can enter into Krebs cycle?
Glucose
Pyurvic acid
Citric acid
Acetyla Co-A
When we work hard we suffer from muscle fatigue because muscle cells
Carry out aerobic respiration at a faster rate and so are tired
Carry out anaerobic respiration and so accumulate more $CO_{2}$
Carry out anaerobic respiration and so accumulate lactic acid
Carry out aerobic respiration at faster rate and so burst
Many molecules of $CO_{2}$ are produced when the Krebs cycle operates once.
01
02
03
06
In which of the following metabolic processes, do oxidation as well as reduction of molecules occur?
Photosynthesis
Respiration
Both
None of these
Chlorophyll pigment absorbs maximum light in wavelengths of
Green and blue
Green and red
Green only
Red and blue