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#biology revision

11 public questions tagged with this topic.

Which of the following statements about flower symmetry is correct?

Pea flowers are zygomorphic, meaning they can be divided into two equal halves in only one plane. This follows from NCERT principle where relation explains outcome clearly for students.

Ref: NCERT Biology Textbook for Class XI and XII (Botany section), Chapter: Biology - Botany portion covering relevant concept, Topic: Plant structure, physiology and applications.

Class B + Class C gene expression gives rise to:

Answer: C) Stamens. For ABC MODEL, remember the key idea and you’ll land on this option; the distractors usually swap cause and effect or confuse similar terms. Avoid: A) Petals; B) Sepals; D) Carpels. 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.

Positive pressure potential is also called:

C fits best: Turgor pressure. Keep the WATER POTENTIAL basics straight and Turgor pressure stands out as the precise answer. Avoid: A) Tension; B) Matric force; D) Osmotic pressure. 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.

Increase in molecular size affects diffusion rate by:

C fits best: Decreasing it. Keep the BASICS of PLANT basics straight and Decreasing it stands out as the precise answer. Avoid: A) Increasing it; B) Not affecting it; D) Stopping it completely. 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.