Questions
Question 1 Multiple Choice (Single Answer)
Where does the dark reaction of photosynthesis occur?
- Grana
- Stroma
- Matrix
- Cytoplasm
Question 2 Multiple Choice (Single Answer)
Which of the following plants is an efficient converter of solar energy?
- Wheat
- Sugarcane
- Rice
- Papaya
Question 3 Multiple Choice (Single Answer)
Which of the following ions controls the stomatal movement in plants?
- Na+
- Ca2+
- Mg2+
- K+
Question 4 Multiple Choice (Single Answer)
Which of the following is a trace element required by plants and also its radioactive isotope is used in cancer therapy?
- Iron
- Calcium
- Cobalt
- Sodium
Question 5 Multiple Choice (Single Answer)
Chlorosis is caused by the deficiency of which of the following elements?
- Iron
- Calcium
- Copper
- Boron
Question 6 Multiple Choice (Single Answer)
Which of the following roles is played by the microelements in plants?
- Cofactors of enzymes
- Building blocks of amino acids
- Constituents of hormones
- Binders of cell structure
Question 7 Multiple Choice (Single Answer)
Among the following plant nutrients, which is a macro-nutrient?
- Manganese
- Calcium
- Chlorine
- Copper
Question 8 Multiple Choice (Single Answer)
The first step in a photosynthetic process is the
- fixation of carbon dioxide.
- release of oxygen from water.
- excitation of chlorophyll by sunlight.
- formation of carbohydrates.
Question 9 Multiple Choice (Single Answer)
Which of the following plants harbour bacteria that can fix nitrogen from air?
- Rice
- Wheat
- Pea
- Maize
Question 10 Multiple Choice (Single Answer)
Which of the following is the function of magnesium and iron in plants?
- Energy transfer
- Stomatal opening
- Synthesis of chlorophyll
- Translocation of carbohydrates