Biology
Grade-9
Easy
Question
Photorespiration is a wasteful metabolic pathway found in ___________.
- C4 Plants
- C3 Plants
- CAM Plants
- Photosynthetic algae
Hint:
Photorespiration does not occur in C4 plants.
The correct answer is: C3 Plants
- Photorespiration does not occur in C4 plants. This is because they have a mechanism which increases the CO2 concentration at the site of the enzyme
- Photorespiration happens in C3 plants when the CO2 concentration drops to about 50 ppm. The key enzyme that accomplishes the fixing of carbon is rubisco, and at low concentrations of CO2 it begins to fix oxygen instead
- So option B is correct
Related Questions to study
Biology
In C4 plants, the Calvin cycle takes place in _________ cells.
In C4 plants, the Calvin cycle takes place in _________ cells.
BiologyGrade-9
Biology
Dimorphic chloroplasts are found in ___________.
Dimorphic chloroplasts are found in ___________.
BiologyGrade-9
Biology
Binding of _____________ molecule to RUBISCO initiates photorespiration.
Binding of _____________ molecule to RUBISCO initiates photorespiration.
BiologyGrade-9
Biology
In CAM plants, the acceptor of carbon dioxide is ___________.
In CAM plants, the acceptor of carbon dioxide is ___________.
BiologyGrade-9
Biology
Agranal chloroplasts are found in ____________.
Agranal chloroplasts are found in ____________.
BiologyGrade-9
Biology
Crassulaceae family of plants are found to exhibit ___________.
Crassulaceae family of plants are found to exhibit ___________.
BiologyGrade-9
Biology
Which of the following molecule is abundant in bundle sheath cells of C4 plants?
Which of the following molecule is abundant in bundle sheath cells of C4 plants?
BiologyGrade-9
Biology
Which of the following molecule is not present in the mesophyll cells of C4 plants?
Which of the following molecule is not present in the mesophyll cells of C4 plants?
BiologyGrade-9
Biology
Match the following.
Match the following.
BiologyGrade-9
Biology
Match the following.
Match the following.
BiologyGrade-9
Biology
Which of the following is not a salient feature of C4 plants?
Which of the following is not a salient feature of C4 plants?
BiologyGrade-9
Biology
Which of the following plants have dimorphic chloroplast?
Which of the following plants have dimorphic chloroplast?
BiologyGrade-9
Biology
In C4 plants, the chloroplasts of bundle sheath cells are
In C4 plants, the chloroplasts of bundle sheath cells are
BiologyGrade-9
Biology
Which of the following is not a C4 plant?
Which of the following is not a C4 plant?
BiologyGrade-9
Biology
In C4 plants, the source of carbon dioxide for the Calvin cycle is _____________.
In C4 plants, the source of carbon dioxide for the Calvin cycle is _____________.
BiologyGrade-9
