#plant growth and development

Auxin Phytohormone

Auxin mainly promotes which cellular process?

Answer: B) Cell elongation. For Auxin Phytohormone, remember the key idea and you’ll land on this option; the distractors usually swap cause and effect or confuse similar terms. Avoid: A) Cell division; C) Cell death; D) Cell differentiation. Name the process first, then pick the option that describes it — don’t reverse cause and effect.

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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VERNALIZATION & FLOWERING+PYQS

Which plant category commonly requires vernalization?

B fits best: Winter annuals and biennials. Keep the VERNALIZATION & FLOWERING basics straight and Winter annuals and biennials stands out as the precise answer. Avoid: A) Summer annuals; C) Tropical plants; D) Aquatic plants. Light and flowering items often hinge on which photoreceptor or day-length rule is in play.

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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VERNALIZATION & FLOWERING+PYQS

Vernalization primarily results in acquisition of:

Competence to flower (B) is correct here. This is core VERNALIZATION & FLOWERING: once you know the definition or pathway step, Competence to flower is the clear fit. The wrong ones are A) Immediate flowering; C) Seed dormancy; D) Stem elongation. 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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VERNALIZATION & FLOWERING+PYQS

Primary site of cold perception during vernalization is:

That points to C: Shoot apical meristem. Compared with the other options, Shoot apical meristem is the one that correctly describes the VERNALIZATION & FLOWERING concept. The wrong ones are A) Leaves; B) Roots; D) Flowers. If you’re stuck, eliminate anything that contradicts a basic fact you already know for this topic.

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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PHOTOPERIODISM+PYQS

Which of the following is a short day plant?

Go with C — Rice. Under PHOTOPERIODISM, this is the standard explanation you’d use in class: it names the real driver or definition, while the rest are nearby but wrong. Not these: A) Wheat; B) Barley; D) Pea. When two options sound similar, choose the one that matches the textbook definition most tightly.

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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PHOTOPERIODISM+PYQS

Which of the following is a long day plant?

Go with C — Wheat. Under PHOTOPERIODISM, this is the standard explanation you’d use in class: it names the real driver or definition, while the rest are nearby but wrong. Not these: A) Rice; B) Maize; D) Potato. When two options sound similar, choose the one that matches the textbook definition most tightly.

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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PHOTOPERIODISM+PYQS

Day neutral plants are those which:

Go with B — Flower irrespective of photoperiod. Under PHOTOPERIODISM, this is the standard explanation you’d use in class: it names the real driver or definition, while the rest are nearby but wrong. Not these: A) Require equal day and night; C) Require long nights; D) Require short nights. When two options sound similar, choose the one that matches the textbook definition most tightly.

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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PHOTOPERIODISM+PYQS

Plants that flower when day length is greater than critical photoperiod are called:

C fits best: Long day plants. Keep the PHOTOPERIODISM basics straight and Long day plants stands out as the precise answer. Avoid: A) Short day plants; B) Day neutral plants; D) Intermediate plants. Light and flowering items often hinge on which photoreceptor or day-length rule is in play.

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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PHOTOPERIODISM+PYQS

Critical photoperiod refers to:

Answer: B) Definite day length beyond or below which flowering does not occur. For PHOTOPERIODISM, remember the key idea and you’ll land on this option; the distractors usually swap cause and effect or confuse similar terms. Avoid: A) Minimum light required for photosynthesis; C) Total duration of sunlight in a year; D) Length of vegetative phase. Name the process first, then pick the option that describes it — don’t reverse cause and effect.

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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