In which portion of the chloroplast, pH is higher when sunlight is on the chloroplast ?
(1) Stroma
(2) Cytosol
(3) Space enclosed by the inner and outer membrane
(4) Space enclosed by the thylakoid membrane
Answers
Because all the H+ move inside thylakoids so pH decrease inside them and outside H+ ion concentration decrease hence pH increase.
Answer:
Concept:
In Stroma portion of the chloroplast, pH is higher when sunlight is on the chloroplast
Find:
In which portion of the chloroplast, pH is higher when sunlight is on the chloroplast ?
(1) Stroma
(2) Cytosol
(3) Space enclosed by the inner and outer membrane
(4) Space enclosed by the thylakoid membrane
Given:
In which portion of the chloroplast, pH is higher when sunlight is on the chloroplast ?
(1) Stroma
(2) Cytosol
(3) Space enclosed by the inner and outer membrane
(4) Space enclosed by the thylakoid membrane
Explanation:
Stroma is the fluid filling up the inner space of the chloroplasts which encircle the grana and the thylakoids.
Stroma is made of an outer membrane and a complex network of inner membranes that goes on to form the grana - disc like structures arranged in a stack. Membranous extensions connect various grana together.
The inner membranes comprise the constituents involved to harvest light energy such as chlorophyll and other photosynthetic pigments. The transparent aqueous matrix or the stroma play a significant role in photosynthesis rather than just merely supporting pigmented substructures.
Chloroplasts evolved derive from free-living prokaryotes which form an endosymbiotic relationship with a few eukaryotic cells. Hence, stroma continues to contain ribosomes and DNA conducting synthesis of proteins. Such proteins are necessary for light-independent reactions of photosynthesis and reactions fixing inorganic materials in organic molecules.
In which portion of the chloroplast, pH is higher when sunlight is on the chloroplast ?
(1) Stroma is correct answer
(2) Cytosol is not correct answer
(3) Space enclosed by the inner and outer membrane is not correct answer
(4) Space enclosed by the thylakoid membrane is not correct answer
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