Introduction to Photosynthesis

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Introduction to Photosynthesis: Overview

This topic covers concepts such as Photosynthetic Autotrophs, Variegated Leaf Experiment, Bell Jar Experiment, Experiments Related to Photosynthesis, Photosynthesis, Autotrophic Bacteria, and Chemosynthetic Autotrophic Bacteria.

Important Questions on Introduction to Photosynthesis

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Blackman's law of limiting factor is applied to

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Give some examples of autotrophic bacteria.

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How do autotrophic bacteria make food ?

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What are autotrophic bacteria ?

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Why are autotrophic bacteria important?

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What are the types of autotrophic bacteria?

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What do you mean by autotrophic bacteria?

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Identify incorrect statements:
i. Chlorobium cannot utilize radiant energy.
ii. Nitrosomonas derives energy from sunlight.
iii. Rhodospirillum derives carbon from carbon dioxide.
iv. Bdellovibrio bacteriovorus grows as a parasite on some harmful viruses.

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Examples of photoautotrophic bacteria which capture light energy and transform it into chemical energy to obtain carbon from atmospheric carbon dioxide are:
I. Anabaena
II. Nitrosomonas
III. Chlorobium
IV. Xanthomonas

The correct combination is:

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Match the following:

  List - I   List - II   List-III
(A) Discovery of DNA as genetic material (i) Transforming principle (I) Conjugation
(B) Chromatium (ii) Derive energy from the oxidation of an inorganic substance (II) Obtain carbon from the atmosphere CO2
(C) Conservative process (iii) Capture light energy (III) S. pneumoniae
(D) Beggiotoa (iv) Donor retains a copy of genetic material (IV) Obtain carbon from CO2

The correct answer is :

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What does the Photosynthesis Variegated Leaf Experiment prove?

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The goal behind the half-leaf experiment by Moll was to show:

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Variegated leaf experiment helps to demonstrate the essentiality of _____ for photosynthesis. (xanthophyll/anthocyanin/chlorophyll)

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The bell jar experiment demonstrates that:

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Who performed the bell jar experiment?

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What is the conclusion obtained from the electrical bell jar experiment?

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"Hill's experiment does not prove that the source of oxygen evolved during photosynthesis, is water." This statement is true or false? Explain.

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What was used to prove that source of oxygen evolved during photosynthesis is water? 

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Write briefly about the significance of photosynthesis. 

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Define photosynthesis. Why is it a redox reaction?