#pharmacognosy

PSS- Sec G- Sec metabolites

Dirigent proteins control:

The right choice is B: Stereochemistry. In PSS- Sec G- Sec metabolites, that matches how the process or concept actually works — the other choices mix up related ideas or use the wrong mechanism. Skip these: A) Rate of reaction; C) Substrate specificity; D) Enzyme activation. A quick check: if an option needs energy, pumps, or the opposite direction of movement, ask whether that really applies.

Ref: Best CSIR NET Plant Physiology books: Master Unit 6 with Taiz & Zeiger and Salisbury & Ross. Crack Part C experimental questions with top textbooks.

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PSS- Sec G- Sec metabolites

Dirigent proteins are mainly involved in biosynthesis of:

Lignans (C) is correct here. This is core PSS- Sec G- Sec metabolites: once you know the definition or pathway step, Lignans is the clear fit. The wrong ones are A) Terpenoids; B) Alkaloids; D) Glucosinolates. If the topic is about gradients or potentials, water/solutes move from higher to lower of the relevant quantity.

Ref: Best CSIR NET Plant Physiology books: Master Unit 6 with Taiz & Zeiger and Salisbury & Ross. Crack Part C experimental questions with top textbooks.

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PSS- Sec G- Sec metabolites

Glucosinolates are sulfur-containing compounds involved in:

Defense (B) is correct here. This is core PSS- Sec G- Sec metabolites: once you know the definition or pathway step, Defense is the clear fit. The wrong ones are A) Growth regulation; C) Pigmentation; D) Energy storage. If the topic is about gradients or potentials, water/solutes move from higher to lower of the relevant quantity.

Ref: Best CSIR NET Plant Physiology books: Master Unit 6 with Taiz & Zeiger and Salisbury & Ross. Crack Part C experimental questions with top textbooks.

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PSS- Sec G- Sec metabolites

β-thioglucosidases (myrosinases) hydrolyze:

Correct option is C, Glucosinolates. In PSS- Sec G- Sec metabolites problems like this, the accurate statement is Glucosinolates; the others are common mix-ups. Not these: A) Alkaloids; B) Terpenoids; D) Phenolics. Tissue transport questions usually turn on xylem vs phloem, living vs dead cells, or source vs sink.

Ref: Best CSIR NET Plant Physiology books: Master Unit 6 with Taiz & Zeiger and Salisbury & Ross. Crack Part C experimental questions with top textbooks.

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PSS- Sec G- Sec metabolites

Cyanogenic glycosides release which toxic compound?

Correct option is C, HCN. In PSS- Sec G- Sec metabolites problems like this, the accurate statement is HCN; the others are common mix-ups. Not these: A) CO2; B) NH3; D) SO2. Tissue transport questions usually turn on xylem vs phloem, living vs dead cells, or source vs sink.

Ref: Best CSIR NET Plant Physiology books: Master Unit 6 with Taiz & Zeiger and Salisbury & Ross. Crack Part C experimental questions with top textbooks.

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PSS- Sec G- Sec metabolites

Alkaloids are characterized by presence of:

The right choice is B: Nitrogen. In PSS- Sec G- Sec metabolites, that matches how the process or concept actually works — the other choices mix up related ideas or use the wrong mechanism. Skip these: A) Sulfur; C) Phosphorus; D) Chlorine. A quick check: if an option needs energy, pumps, or the opposite direction of movement, ask whether that really applies.

Ref: Best CSIR NET Plant Physiology books: Master Unit 6 with Taiz & Zeiger and Salisbury & Ross. Crack Part C experimental questions with top textbooks.

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