Photosynthesis in Higher Plants - Online Test
Q1. The chief pigment associated in process of photosynthesis is
Answer : Option C
Explaination / Solution:
Chlorophyll a, shows higher rate of photosynthesis.so, chlorophyll a is the chief pigment associated with photosynthesis.
Q2. The essential role of air in the growth of green plants is given by
Answer : Option A
Explaination / Solution:
Joseph Priestley (1733-1804) in 1770 performed a series of experiments that revealed the essential role of air in the growth of green plants.
Q3. The site in chloroplast which is responsible for trapping for light energy is
Answer : Option C
Explaination / Solution:
The grana is responsible for trapping the light energy and converting it into ATP and NADPH during light reaction of photosynthesis.
Q4. Photosynthesis take place in
Answer : Option C
Explaination / Solution:
Photosynthesis takes place only in the green parts of the plants, mainly the leaves.
Q5. Photosynthesis is maximum in
Answer : Option C
Explaination / Solution:
There is maximum absorption by chlorophyll a, in the red region and so there is higher rate of photosynthesis.
Q6. In Bacterial photosynthesis, hydrogen donar is
Answer : Option B
Explaination / Solution:
In green plants is the hydrogen donor and is oxidised to . Some organisms do not release during photosynthesis. When H2S, instead is the hydrogen donor for purple and green sulphur bacteria, the ‘oxidation’ product is sulphur or sulphate depending on the organism.
Q7. Solarisation is
Answer : Option A
Explaination / Solution:
Solarisation is the inhibition of photosynthesis at very high light intensities due to photoxidation of certain compounds and destruction of chlorophyll moleucules.
Q8. The substances that have ability to absorb light at different specific wavelength are
Answer : Option B
Explaination / Solution:
Pigments are substances that have an ability to absorb light, at specific wavelengths. The chlorophylla pigment absorb lights of different wavelengths.
Q9. The splitting of water molecule take place inside
Answer : Option D
Explaination / Solution:
Splitting of the water molecule takes place on the inner side of the membrane, the protons or hydrogen ions that are produced by the splitting of water accumulate within the lumen of the thylakoids.
Q10.
PGA as the first fixation product was discovered in photosynthesis of
Answer : Option B
Explaination / Solution:
The pathway of photosynthesis was discovered by Melvin Calvin after experiment on single celled algae. The first stable product of C3 cycle is a three carbon compound called PGA (phosphoglyceric acid).
