Physiology and Biochemistry-C and CAM Pathways [IAS (Admin.) Mains Botany]: Questions 1 - 7 of 7

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Question 1

Appeared in Year: 2015 (IFS)

Describe in Detail Subjectiveâ–ľ

Kranz anatomy (Paper 2)

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Explanation

Kranz Anatomy

  • In dry tropical regions plants are adapted to have C4 pathway for photosynthesis.
  • C4 plants have special leaf anatomy. They tolerate high temperature, they show response in highlight intensities, they lack in a process of photorespiration and they also have high productivity.
  • There are large cells around the vascular bundles of the C4 pa…

… (106 more words, 10 figures) …

Question 2

Appeared in Year: 2015 (IFS)

Write in Short Short Answerâ–ľ

In what way does carbon fixation pathway in malate formers differ from that in aspartate formers? (Paper II)

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Question 3

Appeared in Year: 2020

Describe in Detail Subjectiveâ–ľ

C-value paradox

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Explanation

C-value is the amount in picograms of DNA contained in a haploid nucleus or one half the amount in a diploid somatic cell of a eukaryotic organism.

The terms C-value and genome size are used for each other.

But in polyploids the C-value may represent two or more genomes in the same nucleus.

The term paradox means a lack of understanding.

That is, they …

… (156 more words) …

Question 4

Appeared in Year: 2018

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Describe pathway of fixation. Discuss the advantages that plants have over plants.

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Explanation

Pathway of Fixation

Light responses occur in mesophyll cells of plants (maize, sugarcane, etc.) , whereas assimilation occurs in bundle sheath cells. This cell arrangement prevents emitted from mesophyll cells from entering bu…

… (816 more equations, 28 figures) …

Question 5

Appeared in Year: 2022 (IFS)

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“Complete oxidation of pyruvate to and water occurs through a series of reactions.” What are these reactions collectively called? Draw the cycle with the names of the intermediates and the enzymes. (Paper 2)

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Explanation

Citric Acid Cycle and Oxidative Phosphorylation
Define Oxidation of Pyruvate

Pyruvate oxidation is the odd one out among the four stages of cellular respiration; it is very brief in comparison to the large routes of glycolysis or the citric acid cycle. On the contrary, pyruvate oxidation serves as a vital connection between glycolysis and the remaind…

… (298 more words, 18 figures) …

Question 6

Appeared in Year: 2021 (IFS)

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Explain that cycle returns to the cycle, three-quarters of the carbon that would have been lost as glycolate (Paper 2)

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Explanation

The oxidative photosynthetic carbon cycle, also known as the cycle, is the metabolic system that is responsible for photosynthetic oxygen intake as well as photorespiration, which is the creation of carbon dioxide that is light dependent. Both the cycle and the cycle are present simulta…

… (1632 more equations) …

Question 7

Appeared in Year: 2021 (IFS)

Write in Short Short Answerâ–ľ

“Calvin cycle is autocatalytic.” - Justify the statement. (Paper 2)

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